Academic literature on the topic 'Datura tatula'
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Journal articles on the topic "Datura tatula"
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Manickam, M., S. B. Awasthi, A. Sinha-Bagchi, S. C. Sinha, and A. B. Ray. "Withanolides from Datura tatula." Phytochemistry 41, no. 3 (1996): 981–83. http://dx.doi.org/10.1016/0031-9422(95)00699-0.
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HASSAN, RANIA A., and WAFAA M. AMER. "Biosystematic study of the Egyptian Datura stramonium (Solanaceae)." Phytotaxa 408, no. 3 (2019): 178–94. http://dx.doi.org/10.11646/phytotaxa.408.3.3.
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Datura stramonium (Solanaceae) is an annual weed found in most temperate and subtropical regions of the world. The taxonomic identity of this species is still under debate since Linnaeus first published the name. Early on, many varieties and forms were recognized. In Egypt, D. stramonium presents in two forms: the white-flowered ‘stramonium’ form and violet-flowered ‘tatula’ form. Some authors treated D. stramonium and D. tatula as two distinct species, while others included D. tatula within D. stramonium as either a variety or forma. The present study aimed to elucidate the taxonomic identity of both the white ‘stramonium’ and the violet ‘tatula’ forms based on morphological, palynological and cytogenetic studies extended to karyotyping. A taxonomic study of these forms was carried out using 75 morphological and pollen characters. Significant morphological differences were observed; the most important ones were flower and stem colour, in addition to flower and fruit dimensions. The anatomical examination of juvenile-fruit in acropetal transverse sections, revealed the gradual displacement of parietal placentation at the fruit base to axile at the fruit apex. Pollen of both forms showed no significant differences. Cytogenetic results revealed the presence of a diploid chromosome number (2n=2x=24) in both forms, with minor aneuploidy in the ‘tatula’ form. According to the karyotyping, notable differences were found between the two studied forms, including the centromeric index, total genomic length, and intrachromosomal asymmetry index. Morphological and cytogenetic data revealed that the two forms are different enough to be treated taxonomically as two distinct varieties, namely D. stramonium var. stramonium and D. stramonium var. tatula.
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Ramneek, Kaur, and Prashant K. Aryan Dr. "An Analytical Study based on a Virus Disease Infecting Datura stramonium L." International Journal of Trend in Scientific Research and Development 2, no. 1 (2017): 551–56. https://doi.org/10.31142/ijtsrd5841.
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India has a great wealth of various naturally occurring plant drugs which have great potential pharmacological activities. Datura stramonium D. stramonium is one of the widely well known folklore medicinal herbs. Datura Familiy solanaceae , a genus of poisonous herbs, shrubs or small trees, is distributed throughout the tropical and warm temperate region of the world. The word 'Datura' is derived from the Arabic name 'Tatorah' or the Hindustani 'Dhatura'.This genus is represented by about 11 species Datura ceratocaula, D. innoxia, D. metel, D. quercifolia, D. stramonium, D. tatula, D. discolor, D. wrightii, D. alba, D. fastuosa, D. ferox of which D. innoxia, D. metel and D. stramonium are important drug plant whereas some are ornamenatals. D. innoxia and D. metel . Ramneek Kaur | Dr. Prashant K Aryan "An Analytical Study based on a Virus Disease Infecting Datura stramonium L." Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-1 , December 2017, URL: https://www.ijtsrd.com/papers/ijtsrd5841.pdf
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Taraška, Vojtěch. "Zajímavé druhy železniční květeny na Jesenicku." Zprávy Moravskoslezské pobočky České botanické společnosti 10 (January 1, 2021): 53–63. https://doi.org/10.5281/zenodo.14547554.
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Flora of railways was investigated in the Jeseník District (Silesia, Czech Republic). Four red list species were found on the railway habitats: <em>Papaver argemone, Saxifraga tridactylites, Urtica urens</em> and <em>Verbena officinalis</em>. <em>Papaver argemone</em> and <em>S. tridactylites</em> have recently expanded along railways in many regions of the Czech Republic, which is also the case of the studied area. <em>Senecio vernalis</em> was confirmed after decades in the Jeseník District, while the finding of <em>Datura stramonium </em>var. <em>tatula </em>is so far the second case of naturalization of this taxon in the region of northern Moravia and Silesia. A further spreading of all studied taxa along railways should be monitored.
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MANICKAM, M., and A. B. RAY. "ChemInform Abstract: Withasteroids. Part 29. Structure of Withatatulin E, a Minor Withanolide of Datura tatula." ChemInform 28, no. 13 (2010): no. http://dx.doi.org/10.1002/chin.199713164.
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Demeyer, K., and R. Dejaegere. "The Influence of the Ca2+/K+ Balance and Light Energy on Alkaloid Content and Parttioning in Datura stramonium." Australian Journal of Botany 45, no. 1 (1997): 81. http://dx.doi.org/10.1071/bt94049.
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The influence of a varying Ca2+/K+ balance on alkaloid production and accumulation in Datura stramonium var. tatula L. Torr. (thorn-apple) was examined. Plants were grown in culture on two different mineral media, that varied only in the proportions of the two cations. In addition, plants were cultured under two different light regimes to investigate a possible interaction between different ecophysiological parameters. When plants were grown under a higher light energy regime, more alkaloids accumulated in the plants during a certain stage of development, but also a higher proportion was found in fruits and seeds. This was associated with a lower alkaloid content in leaves and stems. The observed effect of the Ca2+/K+ balance on alkaloid content in the leaves, was affected by the different light regimes. An interpretation, including the possible influence on glutamine content, is put forward.
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Otto, R., and F. Verloove. "Nuevos xenófitos de La Palma (Islas Canarias, España), con énfasis en las especies naturalizadas y (potencialmente) invasoras. Parte 3." Collectanea Botanica 39 (April 14, 2020): e002. http://dx.doi.org/10.3989/collectbot.2020.v39.002.
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Varios meses de trabajos de campo en La Palma (Islas Canarias occidentales) han posibilitado el descubrimiento de nuevas plantas vasculares no nativas. Alstroemeria aurea, A. ligtu, Anacyclus radiatus subsp. Radiatus, Chenopodium album subsp. borbasii, Cotyledon orbiculata, Cucurbita ficifolia, Cynodon nlemfuensis, Datura stramonium subsp. tatula, Digitaria ciliaris var. rhachiseta, D. ischaemum, Diplotaxis tenuifolia, Egeria densa, Eugenia uniflora, Galinsoga quadriradiata, Glebionis segetum, Kalanchoe laetivirens, Lemna minuta, Ligustrum lucidum, Lotus broussonetii, Oenothera fallax, Paspalum notatum, Passiflora caerulea, P. manicata × tarminiana, P. tarminiana, Pelargonium capitatum, Phaseolus lunatus, Portulaca trituberculata, Pyracantha angustifolia, Sedum mexicanum, Trifolium lappaceum, Urochloa mutica, U. subquadripara y Volutaria tubuliflora son xenófitos naturalizados o (potencialmente) invasores o de especial interés florístico, que se citan por primera vez para las Islas Canarias o para la isla de La Palma. Tres táxones adicionales, probablemente casuales, se dan a conocer por primera vez de las Islas Canarias, y siete táxones de la isla de La Palma.
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GONG, J., W. MA, J. PU, S. XU, S. ZHENG, and C. XIAO. "Production of Gastrodin Through Biotransformation of p-hydroxybenzaldehyde Using Cell Suspension Cultures of Datura tatula L." Chinese Journal of Biotechnology 22, no. 5 (2006): 800–805. http://dx.doi.org/10.1016/s1872-2075(06)60056-3.
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Tokaryuk, A. I., O. D. Volutsa, I. I. Chorney, and D. M. Iakushenko. "NEW FINDINGS OF ALIEN PLANTS IN THE CHERNIVTSI REGION." Biolohichni systemy 14, no. 2 (2022): 172–77. http://dx.doi.org/10.31861/biosystems2022.02.172.
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The records of 29 alien plants species on the territory of Chernivtsi region are reported. For the region, 22 species are listed for the first time, in particular Aegilops cylindrica Host, Aralia elata (Maq.) Seem., Cenchrus longispinus (Hack.) Fernald, Centranthus ruber (L.) DC., Ceratochloa carinata (Hook. & Arn.) Tutin, Commelina communis L., Erucastrum gallicum (Wild.) O.E.Schulz, Euphorbia exigua L., Foeniculum vulgare Mill., Heliopsis scabra Dunal, Lavatera trimestris L., Lemna minuta Kunth, L. turionifera Landolt, Lepidium perfoliatum L., Mirabilis jalapa L., Nicotiana alata Link & Otto, Phellodendron amurense Rupr., Physalis ixocarpa Brot. ex Hornem., Rhus typhina L., Sedum pallidum M. Bieb., S. sarmentosum Bunge, Tradescantia virginiana L. Some species (Datura tatula L., Ipomoea hederacea (L.) Jacq., Ricinus communis L. and Tribulus terrestris L.) were mentioned by us earlier without exact geo-graphical reference, which is compensated in this report. In addition, the distribution of Erechtites hieracifolia (L.) Raf. ex DC. in the region is given, and chorological features of Centaurea iberica Trev. and Grindelia squarrosa (Pursh) Dunal. are specified.
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Babaali, Djaafar, Johannes Roeb, Miloud Hammache, and Johannes Hallmann. "Nematicidal potential of aqueous and ethanol extracts gained from Datura stramonium, D. innoxia and D. tatula on Meloidogyne incognita." Journal of Plant Diseases and Protection 124, no. 4 (2017): 339–48. http://dx.doi.org/10.1007/s41348-017-0079-7.
Full textDissertations / Theses on the topic "Datura tatula"
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Tatu, Andrada [Verfasser]. "Visual Analytics of Patterns in High-Dimensional Data / Andrada Tatu." Konstanz : Bibliothek der Universität Konstanz, 2013. http://d-nb.info/1041224680/34.
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Sieff, Daniela F. "The effects of resource availability on the subsistence strategies of Datoga pastoralists of north west Tanzania." Thesis, University of Oxford, 1995. http://ora.ox.ac.uk/objects/uuid:a499a1dd-3c21-4be9-8572-261a9625b85d.
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Many early anthropological studies treated pastoralist populations as egalitarian, however there is considerable variation in the resources available to individual households. This thesis considers how resources influence the subsistence system of the pastoral Datoga of Lake Eyasi. The two categories of resources considered are wealth and labour. The labour available to Datoga households does not influence the herding strategies of those households. In turn, the herding strategies do not affect the dynamics of cattle herds. This is because households that are short of labour can arrange for their animals to be herded by members of different households, and there are no discernible costs associated with this. Wealth, defined by livestock holdings, can be measured either as total household wealth, or as wealth per capita. These are conceptually distinct. Among the Datoga, households that are wealthy in terms of total livestock holdings, are also wealthy in terms of wealth per capita, but not proportionally more so. Once households have about five livestock units per capita, any increase in household wealth is used to attract new people to the household, rather than to increase the wealth of existing household members. For many aspects of the production system overall household wealth and wealth per capita have a similar effect, but this is not always the case. In some instances overall household wealth can explain variation between households, whereas wealth per capita cannot. This occurs when the absolute number of animals belonging to a household is important. In terms of provisioning the household and household economics, per capita wealth explains more of the variation between households. Overall the Datoga are struggling to survive. They have been alienated from more fertile areas, and consequently they are poor, and herd productivity is low. This is due to the low reproduction rate of cattle, and the high commercial offtake rate of both cattle and small stock. The high commercial offtake rate is driven by subsistence needs and most income is used to buy grain and veterinary products. However, there is considerable variation between households, and compared to poor households, wealthy households have a comparatively low offtake rate of livestock, in terms of both mortality and sales. Consequently, they are managing to retain their livestock holdings, or in a few cases to increase the size of their herds. However, wealthy households are in the minority, and the majority of households are caught in a declining cycle of poverty, and will eventually be forced to drop out of the pastoral system.
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Fang, Yi-Jie, and 方義傑. "The Data of The Smart Meter Analysis and Application In Tatung University Region." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/71677311233008960369.
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碩士<br>大同大學<br>電機工程學系(所)<br>103<br>In recent years, the countries of the world begin paying attention to the problems of saving energy and environmental pollution, and the gradual development of renewable energy technologies is flourish.
Therefore, the infrastructure of two-way communication of the smart grid plays a very important role which main function of monitoring real-time power will be one of the most important fundation of a whole new concept of the power system.
In this theme, the demonstrative field is in Tatung University where using-power condition is monitored. The installed meters read the load information corresponding to the cumsumer information, and then collectors collect the information through the communication of wireless ZigBee and wired G3PLC.
By campus wi-fi, collectors transfer datum to Meters Data Management System(MDMS), and finally, MDMS sends datum as XML files to the server of lab 100 of Electrical Hall of Tatung University by Internet for analysis and researching.
Consequently, PHP embedded into Joomla which is a platform of set-up website, for linking up the database of the server and solving the XML file for catching datum we need, including CustomerID, MeterID, RecordDate, KW, KVAR, PF and Status.
According to above, it comes into the structure of dynamic website.
Last, CSS and Google Chart API joining support for enhancement makes the page of the reading meters becoming humanization to select reading type and to see a chart which can be seen variation of power in real-time,
and compare the value on the web page with the value displayed on the screen of the actual meter.
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Yang, Daniel, and 楊元中. "The Preliminary Result of the Electrical Conductivity under Tatun Volcanoes by using Fluxgate Magnetic Data." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/28004871703445471203.
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碩士<br>國立中央大學<br>地球科學學系<br>103<br>There is still volcano activities exist under Tatun volcanoes, which is in the vicinity of Taipei, a densely populated area. Due to the potential hazard that could happen at the area, monitoring of the volcano activity and the exploration of the underground structure is an important subject to the area. In Taiwan, the studies that used geomagnetic data to explore the magnetic susceptibility structure are all done by using total filed geomagnetic data. In this study, we used 3-components magnetic data and through the magnetic transfer function, we obtained the relationship between the vertical component (Z) and horizontal components (X, Y). And we used the relationship to calculate the distribution of Parkinson vectors at three stations in different depth.
In this study, we used the data recorded by the magnetometer that we installed in May 2014 and the magnetometer at Tatun volcano observatory to calculate the distribution of Parkinson vectors at three different stations. After combining the separated results together, we were able to detect the location of high conductivity area. In the result of 6 km deep, the Parkinson vectors focused area is located beneath Hsiaoyoukeng area; at the depth of 7 km, the Parkinson vectors are focus beneath the east part of ZHU station; The result of 8 km deep shows that the location of high conductivity area is located beneath Tayiokeng area; In the result of 9 and 10 km deep, there are both one obvious focused area exists in the center of the study area. Compare ours and the one whcih have been done by the others, the results are similar and we speculate that the high conductivity area is related to the hydrothermal activity under Tatun volcanoes.
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Pickens, James Cecil. "Variations in transitional magnetic field geometries during the Matayuma-Brunhes reversal: Data from the Tatara-San Pedro volcanic complex, Chilean Andes." 1997. https://scholarworks.umass.edu/dissertations/AAI9721485.
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Two facets of paleomagnetism are discussed as part of this study; the use of paleomagnetic records to improve our understanding of magnetic field reversals, and the use of paleosecular variation in volcanology studies. A detailed volcanic record of the Matuyama-Brunhes (MBR) reversal (780 ka) suggests that the reversing magnetic field remains dipolar throughout the transition. This record, taken from the Tatara-San Pedro Volcanic Complex located in the Andean region (36$\sp\circ$S, 71$\sp\circ$W) of central Chile, is recorded in 29 andesite flows. The record is exceptionally well constrained temporally and geochemically as well as paleomagnetically. The lavas record a quick change from reversed polarity to a period of transitional stability, with virtual geomagnetic poles (VGP) forming a cluster centered in Australia, followed by a quick swing to normal polarity. The Chilean data demonstrate that the dipole assumes an intermediate subequatorial position before completing the transition. VGP data from the four other available MBR lava records are largely coincident with the Chilean grouping and further strengthen the suggestion of a dipolar Matuyama-Brunhes reversal field geometry. The integration of paleomagnetism with geochemistry offers volcanologists an efficient and independent correlation tool for studying geochemical trends and growth morphology in volcanic centers. The Tatara-San Pedro Volcanic Complex, a Quaternary arc volcanic center in the Chilean Andes (Singer et al., in press), serves as an excellent model of complex stratocone evolution and lends itself well to a demonstration of this technique. Three fundamental relationships between paleomagnetic and geochemical data are demonstrated within the TSPVC: an absolute correlation, a paleomagnetic dependent correlation, and a geochemical dependent correlation. These correlations provide a degree of temporal insight into the rates of magma productivity that would be difficult to gain through conventional radiometric dating techniques.
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Tai, Chia-Jung, and 戴佳蓉. "A Study of the Relationships among Personal Factors, Club Satisfaction, and Extracurricular Learning Core Competencies for College Students' Participation in Clubs─Based on the Data from Tatung University." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/p4ac67.
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碩士<br>國立臺灣師範大學<br>公民教育與活動領導學系在職進修碩士班<br>101<br>The purpose of this study was to explore the influential factors on the extracurricular learning core competencies of college students. The personal factors include gender, club nature, years of participation, position and weekly hours of the participation. The club satisfaction includes member relationships, work challenges, organizational management, and administrative resources. The extracurricular learning core competencies include problem-solving, innovation, social concern and feedback, cooperation, and reflection.
The subjects of this study were students of Tatung University who participating in clubs, data was collected by “The questionnaire of the club satisfaction and extracurricular learning core competencies of college students' participation in clubs” and analysed by t-test, ANOVA and multiple aggression analysis. The findings are as follows:
1. There are some significant differences for the club satisfaction among different club nature, years of participation and weekly hours of the participation.
2. There are some significant differences for the extracurricular learning core competencies among different club nature, position and weekly hours of the participation.
3. The explanatory power of influencial factors on the club satisfaction are as follows:
The club nature of this study has predictive power on member relationships. The weekly hours of the participation of this study has predictive power on work challenges. There are no significant predictive variables on rganizational management. The club nature of this study has predictive power on administrative resources. There are no significant predictive variables on the whole club satisfaction. R2 is from 3.5％ to 7％.
4. The explanatory power of influencial factors on the extracurricular learning core competencies are as follows:
The club position, weekly hours of the participation, member relationships, work challenges, and organizational management of this study have predictive power on problem-solving. The club nature, weekly hours of the participation, member relationships, work challenges, and organizational management of this study have predictive power on innovation.The gender, club nature, weekly hours of paricipation, member relationships, work challenges, and organizational management of this study have predictive power on social concern and feedback. The gender, club nature, weekly hours of participation, member relationships, and work challenges of this study have predictive power on cooperation. The member relationships, and work challenges of this study have predictive power on reflection. The gender, club nature, weekly hours of the participation, member relationships, work challenges, and organizational management of this study have predictive power on the whole extracurricular learning core competencies. R2 is from 47.6％ to 50.7％.
Based on the conclusion, recommendations for education institution, student activities office, and club cadre members are as follws:
Suggestions for education institution include: a. Attaching importance to the learning experiences of club participation for students. b. Promoting resauces integration from different administrative units. Suggestions for the student activities office and club cadre members include: a. Building harmonious interactions among members. b. Promoting work challenge. 3. Establish effective management system. Finally, suggestions for future research are presented.
Books on the topic "Datura tatula"
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Parab, Varsha, Ramesh Mahadik, and Diksha Tripathi. Indian Business Case Studies Volume VII. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780192869432.001.0001.
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Abstract Volume VII of Indian Business Case Studies book is divided into three interesting sections, which is designed to give greater exposure to the reader in the field of human resource, finance, strategic management, operations, etc. This volume comprises case studies of repute industries like Tata Group, Maruti Suzuki Ltd., Nestle, Nokia, and many others. The Case Volume includes business case studies designed and developed based on current business and economic scenarios in India, both based on published data and field search live case Studies. These case studies enable effective adoption of Case Methodology of teaching for UG and PG Studies in Business Management as also best suited for management development programs in Business and Industry. These case studies offer the best of opportunities and tools to be used in offline and online Teaching and Learning methodology especially help developing analytical skills and problem resolution techniques in the students of business management studies and young and aspiring business executives globally. The cases included in this volume are designed by the authors keeping in mind the requirements of the users and are relevant for current and future industry requirements. It does justice in the field of different specializations and explores multi-dimensional views of users, a perfect volume for users from education and industry. The basic premise of the cases will help the user to develop strong critical thinking abilities and will expedite their learning.
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Szewczyk, Janusz. Rola zaburzeń w kształtowaniu struktury i dynamiki naturalnych lasów bukowo-jodłowo-świerkowych w Karpatach Zachodnich. Publishing House of the University of Agriculture in Krakow, 2018. http://dx.doi.org/10.15576/978-83-66602-35-9.
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The aim of the study was to determine the influence of different disturbances (both natural and anthropogenic) on species composition and stand structure of old-growth mixed mountain forests in the Western Carpathians. These stands are usually dominated by beech, fir and spruce, mixed in different proportions. The tree main species represent different growth strategies, and they compete against each other. The longevity of trees makes the factors influencing the stand structure difficult to identify, even during longitudinal studies conducted on permanent research plots. That is why dendroecological techniques, based upon the annual variability of tree rings, are commonly used to analyze the disturbance histories of old-growth stands. Dendroecological methods make it possible to reconstruct the stand history over several centuries in the past by analyzing the frequency, intensity, duration and spatial scale of disturbances causing the death of trees. Combining the dendroecological techniques with the detailed measurements of stand structure, snag volume, CWD volume, and the analyses of regeneration species composition and structure allows us to identify the factors responsible for the changes in dynamics of mixed mountain forests. Various disturbance agents affect some species selectively, while some disturbances promote the establishment of tree seedlings of specific species by modifying environmental conditions. Describing the disturbance regime requires a broad scope of data on stand structure, on dead wood and tree regeneration, while various factors affecting all the stages of tree growth should be taken into consideration. On the basis of the already published data from permanent sample plots, combined with the available disturbance history analyses from the Western Carpathians, three research hypotheses were formulated. 1. The species composition of mixed mountain forests has been changing for at least several decades. These directional changes are the consequence of simultaneous conifer species decline and expansion of beech. 2. The observed changes in species composition of mixed mountain forests are the effect of indirect anthropogenic influences, significantly changing tree growth conditions also in the forests that are usually considered natural or near-natural. Cumulative impact of these indirect influences leads to the decrease of fir share in the tree layer (spruce decline has also been observed recently),and it limits the representation of this species among seedlings and saplings. The final effect is the decrease of fir and spruce share in the forest stands. 3. Small disturbances, killing single trees or small groups of trees, and infrequent disturbances of medium size and intensity dominate the disturbance regime in mixed mountain forests. The present structure of beech-fir-spruce forests is shaped both by complex disturbance regime and indirect anthropogenic influences. The data were gathered in permanent sample plots in strictly protected areas of Babia Góra, Gorce, and Tatra National Parks, situated in the Western Carpathians. All plots were located in the old-growth forest stands representing Carpathian beech forest community. The results of the measurements of trees, snags, coarse woody debris (CWD) and tree regeneration were used for detailed description of changes in the species composition and structure of tree stands. Tree ring widths derived from increment cores were used to reconstruct the historical changes in tree growth trends of all main tree species, as well as the stand disturbance history within the past two to three hundred years. The analyses revealed complex disturbance history in all of the three forest stands. Intermediate disturbances of variable intensity occurred, frequently separated by the periods of low tree mortality lasting from several decades up to over one hundred years. The intervals between the disturbances were significantly shorter than the expected length of forest developmental cycle, in commonly used theories describing the dynamics of old-growth stands. During intermediate disturbances up to several dozen percent of canopy trees were killed. There were no signs of stand-replacing disturbances, killing all or nearly all of canopy trees. The periods of intense tree mortality were followed by subsequent periods of increased sapling recruitment. Variability in disturbance intensity is one of the mechanisms promoting the coexistence of beech and conifer species in mixed forests. The recruitment of conifer saplings depended on the presence of larger gaps, resulting from intermediate disturbances, while beech was more successful in the periods of low mortality. However, in the last few decades, beech seems to benefit from the period of intense fir mortality. This change results from the influence of long-term anthropogenic disturbances, affecting natural mechanisms that maintain the coexistence of different tree species and change natural disturbance regimes. Indirect anthropogenic influence on tree growth was clearly visible in the gradual decrease of fir increments in the twentieth century, resulting from the high level of air pollution in Europe. Synchronous decreases of fir tree rings’ widths were observed in all three of the sample plots, but the final outcomes depended on the fir age. In most cases, the damage to the foliage limited the competitive abilities of fir, but it did not cause a widespread increase in tree mortality, except for the oldest firs in the BGNP (Babia Góra National Park) plot. BGNP is located in the proximity of industrial agglomeration of Upper Silesia, and it could be exposed to higher level of air pollution than the other two plots. High level of fir regeneration browsing due to the deer overabundance and insufficient number of predators is the second clear indication of the indirect anthropogenic influence on mixed mountain forests. Game impact on fir regeneration is the most pronounced in Babia Góra forests, where fir was almost completely eliminated from the saplings. Deer browsing seems to be the main factor responsible for limiting the number of fir saplings and young fir trees, while the representation of fir among seedlings is high. The experiments conducted in fenced plots located in the mixed forests in BGNP proved that fir and sycamore were the most preferred by deer species among seedlings and saplings. In GNP (Gorce National Park) and TNP (Tatra National Park), the changes in species composition of tree regeneration are similar, but single firs or even small groups of firs are present among saplings. It seems that all of the analysed mixed beech-fir-spruce forests undergo directional changes, causing a systematic decrease in fir representation, and the expansion of beech. This tendency results from the indirect anthropogenic impact, past and present. Fir regeneration decline, alongside with the high level of spruce trees’ mortality in recent years, may lead to a significant decrease in conifers representation in the near future, and to the expansion of beech forests at the cost of mixed ones.
Book chapters on the topic "Datura tatula"
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Ballesteros-Cánovas, Juan, Barbara Spyt, Karolina Janecka, Ryszard J. Kaczka, and Markus Stoffel. "Deciphering Flood Event Information from Tree-Ring Data in the Tatra Mountains: Implications for Hazard Assessment." In Flood Risk in the Upper Vistula Basin. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-41923-7_12.
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Bhasin, Khushboo, and Saloni Pahuja. "A Study of the Performances of Small Cap, Large Cap and Banking & Financial Sector Funds of Nippon India AMC, ICICI Prudential AMC and Tata AMC." In Data Analytics and Business Intelligence. CRC Press, 2023. http://dx.doi.org/10.1201/9781003189640-18.
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Wężyk, Piotr, Marta Szostak, and Piotr Tompalski. "Use of Airborne Laser Scanning Data for a Revision and Update of a Digital Forest Map and its Descriptive Database: A Case Study from the Tatra National Park." In The Carpathians: Integrating Nature and Society Towards Sustainability. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-12725-0_43.
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Zhang, Junjie, Jiafei Lyu, Xiaoteng Ma, et al. "Uncertainty-Driven Trajectory Truncation for Data Augmentation in Offline Reinforcement Learning." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2023. http://dx.doi.org/10.3233/faia230618.
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Equipped with the trained environmental dynamics, model-based offline reinforcement learning (RL) algorithms can often successfully learn good policies from fixed-sized datasets, even some datasets with poor quality. Unfortunately, however, it can not be guaranteed that the generated samples from the trained dynamics model are reliable (e.g., some synthetic samples may lie outside of the support region of the static dataset). To address this issue, we propose Trajectory Truncation with Uncertainty (TATU), which adaptively truncates the synthetic trajectory if the accumulated uncertainty along the trajectory is too large. We theoretically show the performance bound of TATU to justify its benefits. To empirically show the advantages of TATU, we first combine it with two classical model-based offline RL algorithms, MOPO and COMBO. Furthermore, we integrate TATU with several off-the-shelf model-free offline RL algorithms, e.g., BCQ. Experimental results on the D4RL benchmark show that TATU significantly improves their performance, often by a large margin. Code is available here.
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Okoniowa, Joanna. "Tatry i Zakopane w wieku XIX – z badań nad początkami miasta i uzdrowiska." In Gwara i kultura w słowie zapisane: Księga jubileuszowa dedykowana Profesorowi Józefowi Kąsiowi. Ksiegarnia Akademicka Publishing, 2025. https://doi.org/10.12797/9788383681948.05.
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THE TATRA MOUNTAINS AND ZAKOPANE IN THE 19TH CENTURY – FROM RESEARCH ON THE BEGINNINGS OF THE TOWN AND SPA The article addresses the question of the founding of Zakopane, and outlines the history of the town, from a settlement to an important regional centre and spa during the 19th century. It references the earliest mentions of natural resources that can be found in historical chronicles. The paper pays particular attention to geological research initiated by Stanisław Staszic, following in the footsteps of French researchers. The testimony contained in his writings constitutes a rich description of the Tatra trails, landscape, local population, and the terminology Staszic used to designate minerals. Seweryn Goszczyński’s diary, on the other hand, presents a literary vision of the Tatra Mountains. The texts of geologists Ludwik Zejszner, in addition to geological data, present descriptions of the health properties of Podhalan waters. The characteristics of Zakopane and Jaszczurówka as a new climatic and therapeutic station are given in the findings of the Cracow Balneological Commission. Lastly, through source accounts of Tytus Chałubiński and analyses of balneologists, the article traces the transformation of the former village of Zakopane into a modern settlement and town.
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Danziger, Eve. "Formal Findings." In Relatively Speaking. Oxford University PressNew York, NY, 2001. http://dx.doi.org/10.1093/oso/9780195099102.003.0007.
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Abstract I am now ready to describe how data was collected for the purpose of discriminating among the three different semantic models proposed to account for the meanings of the Mopan words tataa’ and suku’ un. The data are directly relevant not only to the question of the existence of a universal domain of kinship but also and more generally to the question of linguistic relativity itself. Under the hypothesis of linguistic relativity, the predicted Piagetian outcome from Mopan children is the one that accompanies the monosemous analysis: a given Mopan child should define the two terms tataa’ and suku’ u11 at a similar relational level with respect to one another, when degree of definition similarity is measured against chance. The stage is set for asking about the degree of mastery of relational semantics revealed by Mopan children’s answers to the Piagetian definition question.
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Cahyono Tri Birowo. "Pemanfaatan AI Pada Layanan Pemerintah Terintegrasi." In Prosiding Use Cases Artificial Intelligence Indonesia: Embracing Collaboration for Research and Industrial Innovation in Artificial Intelligence. Penerbit BRIN, 2023. http://dx.doi.org/10.55981/brin.668.c537.
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Pemerintah menerbitkan Peraturan Presiden nomor 95 tahun 2018 tentang Sistem Pemerintahan Berbasis Elektronik (SPBE) dalam rangka memperkuat Perpres No.80 tahun 2011 tentang Grand Design Reformasi Birokrasi Indonesia 2010–2025. Perpres ini menjadi salah satu upaya pemerintah dalam mewujudkan tata kelola pemerintahan yang bersih, efektif, transparan, dan akuntabel serta pelayanan publik yang berkualitas dan tepercaya, melalui dukungan pemanfaatan TIK dalam sistem pemerintahan secara terpadu. Visi SPBE adalah “terwujudnya sistem pemerintahan berbasis elektronik yang terpadu dan menyeluruh untuk mencapai birokrasi dan pelayanan publik yang berkinerja tinggi.” Visi ini juga sekaligus mendukung salah satu pilar Visi Indonesia Tahun 2045, yakni Pemantapan Ketahanan Nasional dan Tata Kelola Pemerintahan. Untuk memperbaiki sistem pemerintahan yang lama menjadi sistem pemerintahan yang bersih dan efisien, pemerintah melakukan proses transformasi digital dengan dukungan teknologi-teknologi Industri 4.0, seperti IoT, big data, kecerdasan artifisial, dan komputasi awan. Berdasarkan arsitektur SPBE yang dirancang pada 2021, transformasi digital dilakukan secara tematik pada layanan-layanan publik dan layanan-layanan administrasi pemerintah. Dua tema layanan digital pemerintahan yang diprioritaskan agar didukung oleh teknologi kecerdasan artifisial adalah bantuan pemerintah terintegrasi (BPT) dan perizinan pemerintahan terintegrasi (PPT). Dengan dukungan sistem data indonesia (SDI), kecerdasan artifisial dapat dikembangkan dan diterapkan pada aplikasi-aplikasi layanan pemerintahan. SPBE dan data yang berkualitas akan mengantarkan bangsa kita ke Society 5.0.
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Karthikeyan, C. "AI (Artificial Intelligence) and Organizational Culture Shaping Values and Norms." In Advances in Business Strategy and Competitive Advantage. IGI Global, 2024. https://doi.org/10.4018/979-8-3693-8442-8.ch001.
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Artificial Intelligence (AI) is revolutionizing organizational culture by enhancing decision-making, personalizing employee development, and promoting diversity and inclusion. This abstract examines the transformative impact of AI on organizational practices, drawing on recent research and case studies from leading global and Indian companies. The integration of AI tools has significantly improved transparency and efficiency in decision-making processes, as evidenced by Tata Consultancy Services (TCS) and Infosys, which have adopted AI to streamline operations and foster data-driven strategies.
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Sule, Prof Dr Bipin. "Tata Consultancy Services (TCS): Leading the Digital Transformation." In Indian Management Case Studies. San International Scientific Publications, 2024. http://dx.doi.org/10.59646/imcsc11/192.
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This case study tries to accomplish multiple crucial learning objectives that are essential for comprehending the role of Tata Consultancy Services (TCS) in digital transformation. This text examines the crucial importance of strategic planning in digital projects, providing a comprehensive overview of how TCS devises and executes successful strategies for its clients. The report also analyses the importance of incorporating technology, demonstrating how TCS utilises cutting-edge technologies like as cloud computing, artificial intelligence, machine learning, and data analytics to facilitate change. TCS emphasises innovation as a fundamental aspect, showcasing how it cultivates a culture of originality to maintain a competitive edge in the digital realm. Finally, the report examines how TCS enhances organisational agility, allowing client organisations to quickly adapt to market changes and seize opportunities. The case study offers a thorough comprehension of TCS’s leadership in digital transformation by means of these aims.
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Agustan. "AI Kebencanaan dan Kewilayahan." In Prosiding Use Cases Artificial Intelligence Indonesia: Embracing Collaboration for Research and Industrial Innovation in Artificial Intelligence. Penerbit BRIN, 2023. http://dx.doi.org/10.55981/brin.668.c544.
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Indonesia terletak di daerah khatulistiwa, jalur pertemuan beberapa lempeng tektonik, dan dilalui jalur gunung api dunia. Kondisi ini membuat Indonesia menjadi daerah rawan bencana alam berupa gempa, tsunami, letusan gunung api dan bencana turunan dari kondisi hidrometeorologi, seperti banjir, longsor, kekeringan, dan kebakaran lahan. Wilayah daratannya seluas 1,9 juta kilometer persegi didiami oleh populasi dengan laju pertumbuhan 1,49% per tahun dan diproyeksikan berjumlah 285 juta jiwa pada 2025. Pertumbuhan ekonomi dan hasil pembangunan memproyeksikan bahwa 65% dari populasi ini berdiam di wilayah perkotaan dan beberapa di antaranya rawan bencana. Selain itu, infrastruktur dibangun mengikuti populasi dan pusat kegiatan yang kadang terletak di zona rawan bencana sehingga terdapat potensi kerusakan jika terjadi bencana. Terkait dengan bencana, upaya yang dilakukan berupa mitigasi dan adaptasi. Fenomena bencana hidrometeorologi sudah dapat dimodelkan berdasarkan data dan teknologi utamanya kecerdasan artifisial yang saat ini terus berkembang. Selain itu, untuk pengembangan wilayah dan tata ruang, model spasial dinamis dikembangkan berbasis sistem cerdas. Saat ini, Pusat Teknologi Pengembangan Sumber Daya Wilayah mengkaji satu purwarupa, yaitu Sistem Informasi Simulasi Spasial Dinamik Tata Guna Lahan (SIMULAN). Sistem ini dikembangkan untuk memahami perubahan lahan secara spasial, dinamika perkembangan wilayah dan perkotaan secara real time, dan memodelkan kemungkinan perubahan lahan. Saat ini, SIMULAN fokus pada wilayah pesisir dan menghasilkan model simulasi dalam perubahan lahan terkait dengan mitigasi bencana tsunami. Dalam hal ini, diikaji dua skenario, yaitu skenario perubahan lahan pada kondisi normal (sesuai dengan arahan dokumen rencana tata ruang) dan skenario dengan adanya potensi bahaya tsunami. Wilayah yang dipilih adalah Kawasan Kuta Selatan (Kabupaten Badung, Bali). Selain itu, SIMULAN juga diarahkan untuk dapat memahami dan menilai kerusakan lingkungan yang disebabkan alih fungsi lahan dan bencana alam dengan memanfaatkan data penginderaan jauh dan sistem informasi geografis yang diolah menjadi sebuah model prediksi perubahan guna lahan spasial berbasis cellular automata. Pengembangan teknologi ini diharapkan menjadi salah satu dasar dalam pengambilan keputusan oleh para pemangku kebijakan yang terkait dengan penataan ruang dan perencanaan pembangunan wilayah dengan menganalisis tren perubahan lahan dengan berbagai skenario yang dikembangkan serta dampak perubahan lahan (seperti lingkungan dan ekonomi) pada level lokal, regional, dan nasional.
Conference papers on the topic "Datura tatula"
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Wu, Peng, Wei Huang, Bo Liu, and Zhenlin Liu. "iPT-BFL: A TATA promoter prediction model based on Boundary Focus Loss." In 2024 5th International Conference on Big Data & Artificial Intelligence & Software Engineering (ICBASE). IEEE, 2024. http://dx.doi.org/10.1109/icbase63199.2024.10762247.
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Berrio-Zapata, Cristian, Ester Ferreira da Silva, Mayara Costa Pinheiro, et al. "The Arquive of Tatuoca Magnetic Observatory Brazil: from paper to intelligent bytes." In 2022 IEEE International Conference on Big Data (Big Data). IEEE, 2022. http://dx.doi.org/10.1109/bigdata55660.2022.10020443.
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Yu, Wen-Shyong, and Yi-Jie Fang. "Data analysis of the smart meters and its applications in Tatung University." In 2016 International Conference on Fuzzy Theory and Its Applications (iFuzzy). IEEE, 2016. http://dx.doi.org/10.1109/ifuzzy.2016.8004972.
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Ayustika, Fiani, Soraya Masthura Hassan, and Sisca Olivia. "Persepsi Visual Pengunjung terhadap Toko Kosmetik pada Pusat Perbelanjaan (mal) di Kota Medan." In Temu Ilmiah IPLBI 2021. Ikatan Peneliti Lingkungan Binaan Indonesia, 2021. http://dx.doi.org/10.32315/ti.9.k015.
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Pusat perbelanjaan (mal) berfungsi sebagai tempat jual beli serta sebagai tempat hiburan yang memberikan pengaruh cukup tinggi kepada masyarakat sehingga kualitas visual dari setiap ritel sangat diperhatkan. Khususnya untuk ritel kosmetik yang sedang mendapat perhatian lebih dari para pengunjung wanita saat ini, karena semakin banyaknya beauty vlogger hampir diseluruh social media. Penelitian ini menggunakan persepsi visual pengguna sebagai parameter. Penelitian ini bertujuan untuk mengetahui bagaimana persepsi visual dari setiap pengunjng ritel kosmetik pada pusat perbelanjaan (mal) yang telah dirancang sedemikian rupa. Penelitian ini terfokus pada persepsi visual pengunjung terhadap tampilan maupun tata letak ritel. Pengumpulan data dianalisis secara kualitatif. Hasil temuan dari penelitian ini bahwa para pengguna sangat memperhatikan faktor tata cahaya, tata ruang, kesan ruang dan tata letak furnitur. Faktor-faktor tersebut merupakan hasil analisis dari para responden sebagai pembentuk kualitas visual dari setiap ritel. Kata-kunci : ritel kosmetik, persepsi visual, kualitas visual ritel
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Brando Soares, Gabriel, Jürgen Matzka, and Achim Morschhauser. "Geomagnetic Observations at the Equatorial East Coast of Brazil - importance, data and improvements of the Tatuoca Observatory." In Simpósio Brasileiro de Geofísica. Sociedade Brasileira de Geofísica, 2016. http://dx.doi.org/10.22564/7simbgf2016.062.
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Moraes Baldez, Raissa, C. M. Martins, K. J. R. Pinheiro, and C. E. P. Martins. "Comparison Between the Secular Variation at Tatuoca Magnetic Observatory Data (Brazil) and the Global Field Models IGRF12 and CHAOS6." In II PAN AMERICAN WORKSHOP ON GEOMAGNETISM – II PANGEO. Even3, 2018. http://dx.doi.org/10.29327/2pangeo.a19.
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Horn, Anthony J., and Thomas M. Axe. "Observations Arising From Exponential Fitting Methods to a Charpy V-Notch Energy Database From Tata Steel." In ASME 2011 Pressure Vessels and Piping Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/pvp2011-57488.
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Charpy testing across a range of temperatures is a cost effective way to characterise the ductile-to-brittle transition region. It is often convenient to fit a curve to Charpy data through the transition region: a commonly used method is to use a continuous tan-h fit, a single mathematical expression that links lower shelf, transition region and ductile upper shelf behaviour in one continuous curve. Using this method, the temperature dependence of Charpy energy is a unique feature of each individual steel with some steels exhibiting steep transition curves and some shallow curves. In contrast to Charpy data, fracture toughness data are usually analysed by partitioning upper shelf and transition region data. The transition region data is generally accepted to fit a universal temperature dependence, the Master Curve, as proposed by Wallin [1] and standardised in ASTM E1921 [2]. Recent research on nuclear pressure vessel steels [3, 4] has indicated that when Charpy data is assessed using a similar method to that used for fracture toughness data, a common exponential temperature dependence is observed. This paper presents the current results from an on-going investigation aimed at assessing the effect of exponential curve fitting methods on a large dataset of Charpy V-notch energy data from Tata Steel. The Tata Steel data cover a wide range of parent plate steels. The results are compared to the recent studies on nuclear pressure vessel steels and a similar exponential temperature dependence is observed.
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Huang, Xiao, Yu Jiang, Hao Fan, et al. "TATA: Throughput-Aware TAsk Placement in Heterogeneous Stream Processing with Deep Reinforcement Learning." In 2021 IEEE Intl Conf on Parallel & Distributed Processing with Applications, Big Data & Cloud Computing, Sustainable Computing & Communications, Social Computing & Networking (ISPA/BDCloud/SocialCom/SustainCom). IEEE, 2021. http://dx.doi.org/10.1109/ispa-bdcloud-socialcom-sustaincom52081.2021.00021.
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Jenkins, Joanna, John Ward, C. K. Tan, and Jonathan Broughton. "An Improved Mathematical Model to Predict the Real Time Transient Performance of a Large Steel Reheating Furnace." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-63691.
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This paper describes the development and application of a two-dimensional model based on the zone method of radiation analysis to simulate the thermal behaviour of a large steel reheating furnace at Tata Steel. The furnace has a maximum throughput of 160 t/hr of steel blooms and is equipped with a total of 75 burners firing a mixture of combustible fuel gases arising from the steelmaking process. The model was validated for two different furnace throughput rates using experimental and plant data supplied by Tata Steel. Following validation it was then used to assess the furnace performance at a wider range of throughputs as well as examining the effect of the distribution of heat input along the furnace on furnace efficiency and stock temperature uniformity. The model differs from previous work since it takes into account the radiation interchange between the top and bottom firing sections of the furnace and also allows for enthalpy exchange due to the flows of combustion products between these sections. The results to-date showed that the model predictions are in good agreement with typical heating profile of the stock encountered in the actual furnace and are potentially suitable for incorporation into a model based furnace control system due to its relatively fast computing time.
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Kurniawan, Dede, Amran Jaenudin, and Wachdijono. "Model Peningkatan Pendapatan Agribisnis Tebu Rakyat." In Seminar Nasional Semanis Tani Polije 2021. Politeknik Negeri Jember, 2021. http://dx.doi.org/10.25047/agropross.2021.237.
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Pendapatan yang layak sangat diharapkan oleh semua pelaku agribisnis tebu, dikarenakan sangat berkaitan dengan eksistensi budidaya dan kesejahteraannya, apa lagi pada era pandemic covid-19 ini. Namun dalam lima tahun terakhir, pendapatan petani tebu secara nasional menurun, sehingga diperlukan upaya agar pendapatannya meningkat. Penelitian ini bertujuan menyusun model kebijakan pemerintah untuk meningkatkan pendapatan agribisnis tebu di Kecamatan Karangsuwung Kabupaten Cirebon. Waktu penelitian pada bulan September–November 2020. Desain penelitian ini adalah kuantitatif dengan metode survey. Populasi penelitian adalah petani tebu di Wilayah Kerja Pabrik Gula Sindang Laut Rayon Pabrik Gula Karangsuwung yang berjumlah 129 orang dan besar sampel ditentukan sebesar 57 orang. Analisis data menggunakan analisis jalur (path analysis) dan untuk menguji hipotesis menggunakan sobel test. Hasil penelitian menyimpulkan terdapat pengaruh langsung dari variabel perbaikan pola pembiayaan (kredit) budidaya tebu (X1) dan perbaikan pola harga pokok produksi/harga patokan petani (HPP) dan tata niaga gula nasional (X4) terhadap peningkatan pendapatan agribisnis tebu (Y) dan terdapat pengaruh tidak langsung dari variabel perbaikan pola pembiayaan (kredit) budidaya tebu (X1) dan perbaikan produktivitas (X2) terhadap peningkatan pendapatan agribisnis tebu (Y) melalui perbaikan pola harga pokok produksi/harga patokan petani (HPP) dan tata niaga gula nasional (X4). Melalui penelitian ini diharapkan dapat menjadi referensi lokal dan nasional tentang model peningkatan pendapatan agribisnis tebu rakyat.
Reports on the topic "Datura tatula"
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Nasution, Sri. Tata Kelola Data dan Perlindungan Data Pribadi melalui ASEAN Digital Masterplan 2025. Center for Indonesian Policy Studies, 2021. http://dx.doi.org/10.35497/353778.
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Toivonen, Tuuli, Aina Brias Guinart, Johanna Eklund, Matti Hästbacka, Tatu Leppämäki, and Jussi Torkko. Muutokset luontovierailuissa ja mobiilien massadatojen mahdollisuudet kävijäseurannassa : Raportti MOBICON-hankkeen työpajasta Helsingissä 28.9.2023. Digital Geography Lab, University of Helsinki, 2024. http://dx.doi.org/10.31885/2024.030502.
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Changes in nature visitation and the potential of mobile big data for visitor monitoring -työpaja järjestettiin Helsingissä 28.9.2023. Työpaja toteutettiin osana Koneen Säätiön rahoittamaa viisivuotista MOBICON-tutkimushanketta (Mobile Big Data for Understanding People in Nature - Detecting short and long term changes and their implications for biodiversity conservation). Työpajan tavoitteena oli kartoittaa asiantuntijoiden kanssa luonnon virkistyskäytön muutoksia, seurannan tietotarpeita, sekä pohtia erilaisten uusien tietolähteiden mahdollisuuksia näihin tietotarpeisiin vastaamiseen. Paikalla oli kahdeksan luonnon virkistyskäytön asiantuntijaa eri organisaatioista (Metsähallitus, Helsingin kaupunki, Uudenmaan virkistysalueyhdistys Uuvi ja Suomen Latu r.y.). Heille oli ennakkoon lähetetty kysely päivän teemoista. Keskustelu eteni kyselyn tuloksista syvällisempään keskusteluun aihealueittain. Alla käymme aihealueitten keskeiset tulokset läpi teemoittain. Luonnon virkistyskäytön nähtiin olevan muutoksessa. Virkistyskäyttö yhtäältä lisääntyy ja sen ajalliset rytmit muuttuvat. Toisaalta kävijäkunta monimuotoistuu yleisen yhteiskunnan monimuotoistumisen seurauksena ja uudenlaisten ihmisten löytäessä luonnon äärelle. Myös aktiviteetit ja tavat olla luonnossa moninaistuvat. Keskustelussa muutoksia lähestyttiin neljän megatrendin kautta (yhteiskunnalliset, ympäristölliset, poliittiset ja teknologiset muutokset). Näistä yhteiskunnalliset ja ympäristölliset muutosajurit nähtiin tärkeimmiksi. Yhteiskunnallisissa muutoksissa tunnistettiin erityisesti ikääntymisen ja luontokävijöiden moninaistumisen tuoma muutos. Ympäristöllisistä tekijöistä ilmastonmuutos oli ilman muuta merkityksellisin, sekä luontoa, että ihmisten toimintaa muuttavana tekijänä. Poliittisista muutosajureista keskustelussa nousi esiin yhteiskunnan polarisaation lisääntyminen. Toisaalta jokaisenoikeuksiin, biodiversiteetin suojeluun ja virkistyskäyttöön ohjattaviin resursseihin liittyvät poliittiset päätökset nähtiin tärkeinä. Teknologiset muutokset nähtiin osana laajempaa teknologistumista. Yhtäältä yleinen teknologisoituminen lisää mahdollisuuksia tiedonsaantiin ja -jakoon. Toisaalta terveyteen ja liikkumiseen liittyvä mittauskulttuuri vaikuttaa myös virkistyskäytön määriin, kun ihmiset tavoittelevat askel-tai kilometritavoitteitaan yhä enemmän luonnossa. Organisaatioiden tietotarpeista todettiin, että tietoa tarvitaan yhtäältä virkistyskäytön kehittämiseen ja toisaalta oman toiminnan perustelemiseen ja kolmanneksi käyttäjien informointiin. Lisää tietoa kaivattiin kävijävirroista ja niiden alueellisesta ja ajallisesta jakautumisesta. Toisaalta tieto kävijöistä itsestään nähtiin tarpeelliseksi erityisesti kävijäkunnan monipuolistuessa. Huolta kannettiin myös niistä, jotka eivät käy virkistysalueilla: miten saada paremmin tietoa heistä sekä mahdollista käyntiä rajoittavista tekijöistä. Kävijätiedon keruu nähtiin kalliina ja aikaa vievänä, ja siksi ja uudenlaisten datalähteiden löytäminen nähtiin hyödylliseksi. Mobiilidata arvioitiin kiinnostavaksi tietolähteeksi ja sen eri puolia pohdiskeltiin SWOT-analyysin kautta. Selvää kuitenkin oli, että operatiivisessa käytössä tiedon tulee olla luotettavaa ja helposti saatavilla. Mobiilidatan osalta juuri pitkäkestoinen saatavuus pohditutti osallistujia. Tilaisuuden järjestivät Aina Brias Guinart, Matti Hästbacka, Tatu Leppämäki, Jussi Torkko ja Tuuli Toivonen. Johanna Eklund osallistui työpajaan äitiysvapaalta. Lisää tietoa tilaisuudesta tai tutkimuksesta hankkeen verkkosivuilta tai sähköpostilla hankkeen tutkijoille: mobicon-project@helsinki.fi. MOBICON-hanke toimii vuosina 2022-2026 ja sitä rahoittaa Koneen Säätiö. Verkkosivu: https://www.helsinki.fi/en/researchgroups/digital-geography-lab/projects/mobicon.
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Toivonen, Tuuli, Aina Brias Guinart, Johanna Eklund, Hästbacka Matti, Leppämäki Tatu, and Torkko Jussi. Potential of mobile big data for visitor monitoring : Report of the MOBICON workshop held in Helsinki 28.9.2023. Digital Geography Lab, University of Helsinki, 2023. http://dx.doi.org/10.31885/2024.030501.
Full textAbstract:
The Changes in Nature Visitation and the Potential of Mobile Big Data for Visitor Monitoring workshop was held in Helsinki on 28.9.2023. We organized the workshop as part of the five-year MOBICON research project (Mobile Big Data for Understanding People in Nature - Detecting short- and long-term changes and their implications for biodiversity conservation) funded by Kone Foundation. The aim of the workshop was to collect expert opinions related to the changes in the recreational use of nature, the monitoring needs related to the changing visitations, and to discuss the possibilities of various new data sources to meet managerial information needs. Eight experts from different organisations (Metsähallitus, City of Helsinki, Uusimaa Recreation Area Association Uuvi and Suomen Latu r.y.) participated in the event. Prior to the workshop, the participants had answered a survey about their experiences and information needs related to the changing visitations. The discussion progressed from the results of the survey to more in-depth discussions. Below we summarize the key results from the discussions. The recreational use of nature was seen to be changing. Recreational use is increasing and its temporal rhythms are changing. At the same time, the visitor base becomes more diverse because of the general diversification of society and the fact that new user-groups have started to explore nature. Activities and ways of being in nature are also diversifying. Approaching the changes through four megatrends (social, environmental, political and technological changes). The social and environmental drivers of change were seen as the most important. social changes were identified to be related to the ageing of the population and the diversification of nature visitors. Climate change, as an environmental factor, was identified as the most important driver of change, impacting both nature but also human behaviour. Among the political drivers of change, particularly the increasing polarisation of society emerged in the discussion. In addition, political decisions relating to everyone's rights, biodiversity protection and resources directed for the management of recreational areas were seen as important. Technological changes were identified as important and this change taking place as part of the broader technologization of society. On the one hand, this general technologization increases the opportunities for access to and sharing of information. On the other hand, the increased ‘measurement culture’ also affects the amounts of recreational use, as people are aiming to reach their kilometer or step targets. The information needs of organisations were recognized to include 1) planning of management actions, 2) justifying one's own activities for securing funding and 3) informing visitors. Information is needed on visitor flows and their spatial and temporal distribution. In addition, information about the visitors themselves was considered necessary, especially as the visitor base is becoming more diverse. The workshop participants also expressed concern about those who do not visit recreational areas: how get more information about them and the factors that limit nature visits. Collecting visitor data was seen as expensive and time-consuming, which is why finding new kinds of data sources has potential. Mobile data was evaluated as an interesting source of information and its various aspects were discussed through a SWOT analysis. However, it was clear that in operational use, information must be reliable and easily accessible and some doubts were raised on the potential of mobile big data from this aspect. The event was organised by Aina Brias Guinart, Matti Hästbacka, Tatu Leppämäki, Jussi Torkko and Tuuli Toivonen. Johanna Eklund participated in the workshop from maternity leave. More information about the event or research can be found on the project's website or by e-mail to the project's researchers: mobicon-project@helsinki.fi. The MOBICON project will operate from 2022 to 2026 and it is funded by Kone Foundation. Website: https://www.helsinki.fi/en/researchgroups/digital-geography-lab/projects/mobicon.
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Yaron, Zvi, Abigail Elizur, Martin Schreibman, and Yonathan Zohar. Advancing Puberty in the Black Carp (Mylopharyngodon piceus) and the Striped Bass (Morone saxatilis). United States Department of Agriculture, 2000. http://dx.doi.org/10.32747/2000.7695841.bard.
Full textAbstract:
Both the genes and cDNA sequences encoding the b-subunits of black carp LH and FSH were isolated, cloned and sequenced. Sequence analysis of the bcFSHb and LHb5'flanking regions revealed that the promoter region of both genes contains canonical TATA sequences, 30 bp and 17 bp upstream of the transcription start site of FSHb and LHb genes, respectively. In addition, they include several sequences of cis-acting motifs, required for inducible and tissue-specific transcriptional regulation: the gonadotropin-specific element (GSE), GnRH responsive element (GRE), half sites of estrogen and androgen response elements, cAMP response element, and AP1. Several methods have been employed by the Israeli team to purify the recombinant b subunits (EtOH precipitation, gel filtration and lentil lectin). While the final objective to produce pure recombinantGtH subunits has not yet been achieved, we have covered much ground towards this goal. The black carp ovary showed a gradual increase in both mass and oocyte diameter. First postvitellogenic oocytes were found in 5 yr old fish. At this age, the testes already contained spermatozoa. The circulating LH levels increased from 0.5 ng/ml in 4 yr old fish to >5ng/ml in 5 yr old fish. In vivo challenge experiments in black carp showed the initial LH response of the pituitary to GnRH in 4 yr old fish. The response was further augmented in 5 yr old fish. The increase in estradiol level in response to gonadotropic stimulation was first noted in 4 yr old fish but this response was much stronger in the following year. In vivo experiments on the FSHb and LHb mRNA levels in response to GnRH were carried out on common carp as a model for synchronom spawning cyprinids. These experiments showed the prevalence of FSHP in maturing fish while LHP mRNA was prevalent in mature fish, especially in females. The gonadal fat-pad was found to originate from the retroperitoneal mesoderm and not from the genital ridge, thus differing from that reported in certain amphibians This tissue possibly serves as the major source of sex steroids in the immature black carp. However, such a function is taken over by the developing gonads in 4 yr old fish. In the striped bass, we described the ontogeny of the neuro-endocrine parameters along the brain-pituitary-gonadal axis during the first four years of life, throughout gonadal development and the onset of puberty. We also described the responsiveness of the reproductive axis to long-term hormonal manipulations at various stages of gonadal development. Most males reached complete sexual maturity during the first year of life. Puberty was initiated during the third year of life in most females, but this first reproductive cycle did not lead to the acquisition of full sexual maturity. This finding indicates that more than one reproductive cycle may be required before adulthood is reached. Out of the three native GnRHs present in striped bass, only sbGnRH and cGnRH II increased concomitantly with the progress of gonadal development and the onset of puberty. This finding, together with data on GtH synthesis and release, suggests that while sbGnRH and cGnRH II may be involved in the regulation of puberty in striped bass, these neuropeptides are not limiting factors to the onset of puberty. Plasma LH levels remained low in all fish, suggesting that LH plays only a minor role in early gonadal development. This hypothesis was further supported by the finding that experimentally elevated plasma LH levels did not result in the induction of complete ovarian and testicular development. The acquisition of complete puberty in 4 yr old females was associated with a rise in the mRNA levels of all GtH subunit genes, including a 218-fold increase in the mRNA levels of bFSH. mRNA levels of the a and PLH subunits increased only 11- and 8-fold, respectively. Although data on plasma FSH levels are unavailable, the dramatic increase in bFSH mRNA suggests a pivotal role for this hormone in regulating the onset and completion of puberty in striped bass. The hormonal regulation of the onset of puberty and of GtH synthesis and release was studied by chronic administration of testosterone (T) and/or an analog of gonadotropin-releasing hormone (G). Sustained administration of T+G increased the mRNA levels of the PLH subunit to the values characteristic of sexually mature fish, and also increased the plasma levels of LH. However, these changes did not result in the acceleration of sexual maturation. The mRNA levels of the bFSH subunit were slightly stimulated, but remained about 1/10 of the values characteristic of sexually mature fish. It is concluded that the stimulation of FSH gene expression and release does not lead to the acceleration of sexual maturity, and that the failure to sufficiently stimulate the bFSH subunit gene expression may underlie the inability of the treatments to advance sexual maturity. Consequently, FSH is suggested to be the key hormone to the initiation and completion of puberty in striped bass. Future efforts to induce precocious puberty in striped bass should focus on understanding the regulation of FSH synthesis and release and on developing technologies to induce these processes. Definite formulation of hormonal manipulation to advance puberty in the striped bass and the black carp seems to be premature at this stage. However, the project has already yielded a great number of experimental tools of DNA technology, slow-release systems and endocrine information on the process of puberty. These systems and certain protocols have been already utilized successfully to advance maturation in other fish (e.g. grey mullet) and will form a base for further study on fish puberty.