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Journal articles on the topic 'Addition calcaire'

Author: Grafiati
Published: 10 October 2023

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1

Belmahi, Samir, Mohammed Zidour, and Tayeb Bensatllah. "Mechanical behavior of mortars composed of a mixture of cement and lime stone filler." Lebanese Science Journal 19, no. 1 (2018): 95–104. http://dx.doi.org/10.22453/lsj-019.1.095-104.

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This work consists in studying the mechanical behavior of mortars composed of a mixture of cement and fire-clay. The limestone filler is used as an additive in this mixture. The main idea wasto compare this mortar with an ordinary mortar,made with a normal sand, thus,to know the limit of their use in construction.The results showed and confirmed that fire-clay mortar, cannot give better resistances than a normal sand mortar. The second idea wasto introduce the limestone filler manufactured by ENG Tlemcen (Algeria) as an addition. Theproposed percentages varied from 5% to 30% of the cement mass
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HAOUAT, Abdellah, and Omar AZZOUZ. "Substitution de Ciment pour Béton par des Pourcentages de Poudre de Marbre." International Journal of Financial Accountability, Economics, Management, and Auditing (IJFAEMA) 3, no. 4 (2021): 552–59. http://dx.doi.org/10.52502/ijfaema.v3i4.122.

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Le but de cette étude est la valorisation des résidus minéraux en tant que substitution partielle du ciment qui entre dans la fabrication du béton. Il s'inscrit dans une démarche de développement durable. Il regroupe les résultats obtenus expérimentalement. L'utilisation des poudres de marbre en remplacement partiel du ciment Portland dans le béton permet de réduire les émissions de gaz à effet de serre et génère un béton ayant un impact moindre sur l'environnement. En mettant à profit diverses techniques expérimentales, une attention particulière est accordée au comportement de la poudre de m
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Bu, X. L., J. Su, J. H. Xue, Y. B. Wu, C. X. Zhao, and L. M. Wang. "Effect of rice husk biochar addition on nutrient leaching and microbial properties of Calcaric Cambisols." Journal of Soil and Water Conservation 74, no. 2 (2019): 172–79. http://dx.doi.org/10.2489/jswc.74.2.172.

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4

López-Martínez, N., A. Olmo, and J. Torrent. "Dissolved reactive phosphorus in a Calcaric Fluvisol as affected by the addition of agricultural wastes." Soil Use and Management 20, no. 1 (2006): 74–80. http://dx.doi.org/10.1111/j.1475-2743.2004.tb00339.x.

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López-Martínez, N., A. del Olmo, and J. Torrent. "Dissolved reactive phosphorus in a Calcaric Fluvisol as affected by the addition of agricultural wastes." Soil Use and Management 20, no. 1 (2004): 74–80. http://dx.doi.org/10.1079/sum2003225.

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Ingerpuu, Nele, Loore Ehrlich, Mare Leis, Tiiu Kupper, Leiti Kannukene, and Kai Vellak. "Additions and changes to the species list of Estonian bryophytes." Folia Cryptogamica Estonica 59 (July 7, 2022): 23–25. http://dx.doi.org/10.12697/fce.2022.59.05.

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Since the last additions (Vellak et al., 2021), four new species should be added to the list. Two of these (Calypogeia fissa and Timmia austriaca) are new finds, two (Hedwigia emodica and Syntrichia ruraliformis) were earlier known as varieties in Estonia. One species (Seligeria patula) should be excluded from the list since the voucher specimen was re-identified as S. calcarea and no other specimens were found among all collected specimens of genus Seligeria in Estonian herbaria and during inventories of genus Seligeria at all known localities in Estonia in 2020-2021. The number of species in
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Yu, Yao, Dong-Yi Lan, Li-Ying Tang, et al. "Intrinsic functional connectivity alterations of the primary visual cortex in patients with proliferative diabetic retinopathy: a seed-based resting-state fMRI study." Therapeutic Advances in Endocrinology and Metabolism 11 (January 2020): 204201882096029. http://dx.doi.org/10.1177/2042018820960296.

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Purpose: In this study, we aimed to investigate the differences in the intrinsic functional connectivity (iFC) of the primary visual cortex (V1), based on resting-state functional magnetic resonance imaging (rs-fMRI), between patients with proliferative diabetic retinopathy (PDR) and healthy controls (HCs). Methods: In total, 26 patients (12 males, 14 females) with PDR and 26 HCs (12 males, 14 females), matched for sex, age, and education status, were enrolled in the study. All individuals underwent rs-fMRI scans. We acquired iFC maps and compared the differences between PDR patients and the H
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Reis, Ana Carolina Botelho dos, and Júlia Ronzella Ottoni. "Antifungal activity of homeopathic medicines against the white mold causing agent Sclerotinia sclerotiorum." Acta Scientiarum. Biological Sciences 43 (October 25, 2021): e56548. http://dx.doi.org/10.4025/actascibiolsci.v43i1.56548.

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White mold disease, caused by fungus Sclerotinia sclerotiorum (Lib.) de Bary., is a disease hard to control due to the high amount of sclerotia produced, which guarantees its survival in the soil for years leading to significant yield losses. Alternative techniques to control the pathogen have been researched, including homeopathy. The present work aimed to evaluate the in vitro antifungal effect of homeopathic medicines on S. sclerotiorum mycelial growth. Homeopathic medicines Sulphur, fungal sclerotium Nosode and Calcarea carbonica, in 30CH, 200CH and 1000CH dynamizations were tested. Assays
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Glass, Phillip J., and William L. Gannon. "Description of M. uropataginalis (a new muscle), with additional comments from a microscopy study of the uropatagium of the fringed myotis (Myotis thysanodes)." Canadian Journal of Zoology 72, no. 10 (1994): 1752–54. http://dx.doi.org/10.1139/z94-236.

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We describe a bundle of skeletal muscle extending between the last caudal vertebrae and the calcar in the distal uropatagium of the fringed myotis, Myotis thysanodes, and we name this muscle M. uropataginalis. This discovery may elucidate the function of the fringe hairs of M. thysanodes and other bats with hairs projecting distally and ventrally along the trailing edge of the uropatagium.
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Saul, Dominik, Tobias Himmelmann, and Klaus Dresing. "Humeral Tip-apex-distance as a Prognostic Marker for Proximal Humeral Fractures in 203 Patients." Open Orthopaedics Journal 11, no. 1 (2017): 297–308. http://dx.doi.org/10.2174/1874325001711010297.

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Background:Humeral head fractures and their postoperative outcome remain a challenging problem in surgical daily routine. Predictive factors for loss of fixation are rare.Objective:Determination of predictive factors for the failure of osteosynthesis with the loss of fixation or migration of screws in humeral head fractures.Method:From 1995 to 2011, 408 patients with proximal humeral fractures [mean age 66.6 years, 50.9-82.3 years] and osteosynthesis were analyzed. Two hundred and three received open reduction internal fixation (ORIF) with the PHILOS®plate. The non-locking plate was used in 80
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11

ALVIZU, ADRIANA, JOANA R. XAVIER, and HANS TORE RAPP. "Description of new chiactine-bearing sponges provides insights into the higher classification of Calcaronea (Porifera: Calcarea)." Zootaxa 4615, no. 2 (2019): 201. http://dx.doi.org/10.11646/zootaxa.4615.2.1.

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A recent phylogenetic study revealed a close relationship between chiactine-bearing (family Achramorphidae, order Leucosolenida) and pugiole-bearing (order Baerida) calcaronean sponges as well as new putative taxa within Achramorphidae. In this study, we present a revision of chiactine-bearing sponges based on morphological re-examination of type material and recently collected specimens, in addition to new molecular data for the ribosomal 18S and C-region of the 28S. We provide re-descriptions for all known chiactine-bearing species, and further describe two new species from the Antarctic (Ac
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VAN SOEST, ROB W. M., and NICOLE J. DE VOOGD. "Calcareous sponges of the Western Indian Ocean and Red Sea." Zootaxa 4426, no. 1 (2018): 1. http://dx.doi.org/10.11646/zootaxa.4426.1.1.

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Past taxonomic studies of Western Indian Ocean and Red Sea Calcarea have been few and sporadic (e.g. Schuffner 1877, Jenkin 1908, Row 1909, Dendy 1913, 1916, Voigt et al. 2017, 2018). Nevertheless, approximately 70 species are known from these studies for the considered region, but the descriptions of the older records often lack sufficient details for reliable identification. We studied the Western Indian Ocean Calcarea collection kept in the Naturalis Biodiversity Center. Available specimens numbered 145, collected in the Red Sea, Seychelles, Maldives, Mayotte and Rodrigues, in addition to i
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13

Katthagen, J. C., M. Schwarze, L. Bauer, et al. "Is there any advantage in placing an additional calcar screw in locked nailing of proximal humeral fractures?" Orthopaedics & Traumatology: Surgery & Research 101, no. 4 (2015): 431–35. http://dx.doi.org/10.1016/j.otsr.2015.01.018.

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14

Cheng, Yi, Xin Huang, Yu-Xiang Hu, et al. "Comparison of intrinsic brain activity in individuals with low/moderate myopia versus high myopia revealed by the amplitude of low-frequency fluctuations." Acta Radiologica 61, no. 4 (2019): 496–507. http://dx.doi.org/10.1177/0284185119867633.

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Background Previous neuroimaging studies demonstrated that individuals with high myopia are associated with abnormalities in anatomy of the brain. Purpose The purpose of this study was to explore alterations in the intrinsic brain activity by studying the amplitude of low-frequency fluctuations. Material and Methods A total of 64 myopia individuals (41 with high myopia with a refractive error <–600 diopter [D], 23 with low/moderate myopia with a refractive error between –100 and –600 D, and similarly 59 healthy controls with emmetropia closely matched for age) were recruited. The amplitude
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15

Mackie, J., K. P. Ebmeier, and R. E. O'Carroll. "An MRI, SPECT and Neuropsychological Study of a Patient Presenting with Capgras Syndrome." Behavioural Neurology 7, no. 3-4 (1994): 211–15. http://dx.doi.org/10.1155/1994/960953.

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A 25 year old male patient presented with the “delusion of doubles” (Capgras syndrome). The patient underwent detailed neuropsychological, single photon emission computed tomography (SPECT) and magnetic resonance imaging (MRI) investigations. The neuropsychological results indicated that he was of average premorbid intelligence, which was consistent with current estimates, and had a degree of everyday memory dysfunction which was below norms derived from healthy controls, but was average relative to schizophrenic norms. He demonstrated average or above average recognition memory for patterns,
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16

Botting, Joseph P. "Reassessment of the problematic Burgess Shale sponge Takakkawia lineata Walcott, 1920." Canadian Journal of Earth Sciences 49, no. 9 (2012): 1087–95. http://dx.doi.org/10.1139/e2012-046.

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The monotypic Burgess Shale sponge genus Takakkawia Walcott, 1920, has been previously assigned to the Protomonaxonida, despite showing several unique features. A reassessment of the genus, including restudy of previously described material and the addition of new material that includes partially disarticulated specimens, has allowed a greatly modified understanding of its structure. The sponge possessed four primary columns (each divided into two) of highly modified spicules, with an outer organic layer extended into a unique, complex flange that shows a fine microstructure. The flanges withi
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Ercole, Claudia, Paola Bozzelli, Fabio Altieri, Paola Cacchio, and Maddalena Del Gallo. "Calcium Carbonate Mineralization: Involvement of Extracellular Polymeric Materials Isolated from Calcifying Bacteria." Microscopy and Microanalysis 18, no. 4 (2012): 829–39. http://dx.doi.org/10.1017/s1431927612000426.

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AbstractThis study highlights the role of specific outer bacterial structures, such as the glycocalix, in calcium carbonate crystallizationin vitro. We describe the formation of calcite crystals by extracellular polymeric materials, such as exopolysaccharides (EPS) and capsular polysaccharides (CPS) isolated fromBacillus firmusandNocardia calcarea. Organic matrices were isolated from calcifying bacteria grown on synthetic medium—in the presence or absence of calcium ions—and their effect on calcite precipitation was assessed. Scanning electron microscopy observations and energy dispersive X-ra
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18

Sukul, Nirmal Chandra, Tandra Sarkar, Atheni Konar, et al. "Raman spectroscopy reveals distinctive features of drugs at ultra high dilution." International Journal of High Dilution Research - ISSN 1982-6206 15, no. 4 (2021): 39–40. http://dx.doi.org/10.51910/ijhdr.v15i4.866.

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Background 
             Drugs at ultra high dilution (UHD) have been used in homeopathy for a couple of centuries. The central theme in homeopathic Materia Medica is that each drug has its own distinctive features which need to be matched with the symptoms of a patient for eliciting therapeutic response. However, UHD’s very often (above 12 cH) cross the Avogadro number, and are, therefore, devoid of original drug molecules. How do they maintain their individual identity ? This study aims to address this pertinent question.
  
 Objective :
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Macías-Cortés, Emma, Saraí Arellano-Álvarez, Sandra Vega-Monroy, et al. "Efficacy of Homeopathy in Addition to a Multidisciplinary Intervention for Overweight or Obesity in Mexican Adolescents: Study Protocol for a Randomized, Double-Blind, Placebo-Controlled Trial." Homeopathy 109, no. 02 (2020): 087–96. http://dx.doi.org/10.1055/s-0039-1697927.

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Abstract Background Current recommendations for treating obesity in adolescence include a comprehensive approach (nutritional, behavioral, and exercise). Calcarea carbonica ostrearum (CCO) is a homeopathic medicine usually prescribed in obese individuals, but its effects on weight and body fat are not completely known. Objective The aim of this study will be to evaluate the efficacy of homeopathic CCO, in addition to a multidisciplinary intervention (diet, motivational support, and exercise program), on body fat and weight in obese adolescents. Methods/Design A randomized, placebo-controlled,
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20

Ling, Ling, Yu Guo, Rong-Bin Liang, et al. "Altered spontaneous brain activity patterns in patients with hyperthyroidism exophthalmos using amplitude of low-frequency fluctuation: a resting-state fMRI study." International Journal of Ophthalmology 14, no. 12 (2021): 1957–62. http://dx.doi.org/10.18240/ijo.2021.12.22.

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AIM: To assess changed spontaneous brain activity in hyperthyroid exophthalmos (HE) patients by the amplitude of the low-frequency fluctuation (ALFF) method, and to analyze the correlation between brain activity and ALFF values in these patients. METHODS: Totally 18 HE and 18 hyperthyroid non-exophthalmos (HNE) patients were enrolled. The participants were tested by resting-state functional magnetic resonance imaging, and receiver operating characteristic (ROC) curves were generated to classify the ALFF values of the study population. Pearson’s correlation analysis was utilized to evaluate the
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21

Ni-Ni-Win, Zhong-Min Sun, Takeaki Hanyuda, et al. "Four newly recorded species of the calcified marine brown macroalgal genus Padina (Dictyotales, Phaeophyceae) for Australia." Australian Systematic Botany 26, no. 6 (2013): 448. http://dx.doi.org/10.1071/sb13025.

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Molecular phylogenetic analyses based on plastid-encoded rbcL and mitochondrial cox3 gene sequences, in combination with morphological observations, revealed the existence of the following four bistratose Padina species previously unreported from Australian coasts: Padina calcarea Ni-Ni-Win, S.G.A.Draisma, W.F.Prud'homme van Reine & H.Kawai, characterised by its bright yellow–orange inferior thallus surface and chalky white, heavily calcified superior surface, and the presence of hairlines only on the inferior surface; P. macrophylla Ni-Ni-Win, M.Uchimura & H.Kawai, characterised by a
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BEKMEZCİ, Taner, Serdar Kamil ÇEPNİ, Suat BATAR, and Ali ŞİŞMAN. "Functional results of deltoid split minimally invasive osteosynthesis for neer type 3 proximal humerus fractures." Journal of Health Sciences and Medicine 6, no. 1 (2023): 134–39. http://dx.doi.org/10.32322/jhsm.1214157.

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We aimed to evaluate the short-term functional and radiological outcomes of the minimally invasive fixation of three-part proximal humerus fractures without using calcar screws. Twenty patients were treated with the minimally invasive approach using locking plate-screws. The relationship between the cephalo-diaphyseal angles and the functional outcomes were evaluated. The mean follow-up time were 22.7 months. The mean Constant-Murley score of the patients was 83.7. The modified Constant-Murley score was excellent in 16 and good in four patients. A statistically significant difference was detec
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Furderer, Makaila L., Ellen Hertz, Grisel J. Lopez, and Ellen Sidransky. "Neuropathological Features of Gaucher Disease and Gaucher Disease with Parkinsonism." International Journal of Molecular Sciences 23, no. 10 (2022): 5842. http://dx.doi.org/10.3390/ijms23105842.

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Deficient acid β-glucocerebrosidase activity due to biallelic mutations in GBA1 results in Gaucher disease (GD). Patients with this lysosomal storage disorder exhibit a wide range of associated manifestations, spanning from virtually asymptomatic adults to infants with severe neurodegeneration. While type 1 GD (GD1) is considered non-neuronopathic, a small subset of patients develop parkinsonian features. Variants in GBA1 are also an important risk factor for several common Lewy body disorders (LBDs). Neuropathological examinations of patients with GD, including those who developed LBDs, are r
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Jiménez-Ballesta, Raimundo, Sandra Bravo, Jose Angel Amorós, et al. "An Environmental Approach to Understanding the Expansion of Future Vineyards: Case Study of Soil Developed on Alluvial Sediments." Environments 8, no. 9 (2021): 96. http://dx.doi.org/10.3390/environments8090096.

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The importance of soil properties in wine grape production is generally treated as secondary to climate and canopy management. This study was undertaken to characterize and classify a singular soil resource for a vineyard in a traditional viticultural region: Castilla-La Mancha, central Spain. The soil under study was described and sampled using standard soil survey procedures as outlined by FAO, and served as a pedologic window for Gleyic Fluvisol (Calcaric, Humic), according to the FAO System, or Fluventic Haploxerept, according to the Soil Taxonomy System. This soil, developed on alluvial m
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Inui, Koji, and Ryusuke Kakigi. "Temporal Analysis of the Flow From V1 to the Extrastriate Cortex in Humans." Journal of Neurophysiology 96, no. 2 (2006): 775–84. http://dx.doi.org/10.1152/jn.00103.2006.

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We previously examined the cortical processing in response to somatosensory, auditory and noxious stimuli, using magnetoencephalography in humans. Here, we performed a similar analysis of the processing in the human visual cortex for comparative purposes. After flash stimuli applied to the right eye, activations were found in eight cortical areas: the left medial occipital area around the calcarine fissure (primary visual cortex, V1), the left dorsomedial area around the parietooccipital sulcus (DM), the ventral (MOv) and dorsal (MOd) parts of the middle occipital area of bilateral hemispheres
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Kurochkina, Tatyana Fedorovna, Botagoz Murasovna Nasibulina, Shima Bakhshalizadeh, et al. "Plankton Community Structure and Biomass in the Eastern Middle Caspian Sea." Water 15, no. 1 (2022): 138. http://dx.doi.org/10.3390/w15010138.

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Despite the role of planktonic organisms in the fishery value of the Caspian Sea and in addition to the increase in the plankton population in the Caspian Sea, there are few detailed studies regarding the determination of the planktonic organisms in the Caspian Sea. In the present investigation, we aimed to study the cell abundance and diversity of the phyto- and zooplankton in the eastern part of the Middle Caspian Sea in the spring of 2016. The composition of phytoplankton consisted of 50 species belonging to 4 systematic groups which were registered in the eastern part of the Middle Caspian
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Vrščaj, Borut, Helena Baša Česnik, Špela Velikonja Bolta, Sanja Radeka, and Klemen Lisjak. "Pesticide Residues and Heavy Metals in Vineyard Soils of the Karst and Istria." Land 11, no. 12 (2022): 2332. http://dx.doi.org/10.3390/land11122332.

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Pesticide residues and heavy metal concentrations were determined in two depths (0–20 and 20–40 cm) of Chromic Cambisol in 69 vineyards in the Slovenian winegrowing region of the Karst. Similarly, pesticide residues and heavy metal concentrations were also determined in two depths of Calcaric Cambisol in 11 vineyards in the other Slovenian and Croatian winegrowing regions of Istria. The topsoil (0–20 cm) was analysed for the presence of 176 different pesticidal active substances using two multiresidue analytical methods: (a) gas chromatography coupled with mass spectrometry (GC/MS) and (b) liq
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Panyaping, Theeraphol, Lojana Tuntiyatorn, Chakrit Sugying, and Witaya Sungkarat. "Functional MRI During Memory Recognition in Healthy Adults." ASEAN Journal of Radiology 19, no. 1 (2013): 17–28. http://dx.doi.org/10.46475/aseanjr.v19i1.19.

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Purpose: To localize the functional cortices enrolled during abstract picture recognition task that might be a baseline study to provide Thais standard paradigm for future research.
 Material and methods: The protocol study was approved by institutional review broad and local ethics committee. Informed written consent was obtained from all participants after character of the experimental study was fully explained. Twenty healthy subjects underwent functional MRI and axial T1 weighted image, the latter was anatomic reference image. Abstract picture recognition task as block paradigm was us
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Mazumdar, Gourav, Abhishek Kumar Singh, Alif Nidal Vilangil, and Fazlur Rahmon. "Evaluation of functional and radiological outcome of transverse cancellous lag screw fixation technique in pauwels type 3 fracture neck of femur." Indian Journal of Orthopaedics Surgery 9, no. 1 (2023): 18–22. http://dx.doi.org/10.18231/j.ijos.2023.005.

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The study was conducted to evaluate the outcomes of transverse cancellous lag screw (TCLS) fixation in pauwels type 3 fracture neck of femur (NOF). 29 patients with pauwels type 3 fracture neck of femur were operated with transverse cancellous lag screws. Functional outcome was evaluated using Harris hip score while RUSH score was used to evaluate radiological outcome. The follow up period was 6 months. Quantitative variables were compared using unpaired t- test/Mann- Whitney test. Qualitative variables were compared using Chi-Square test /Fisher’s exact test. Pearson correlation coefficient/S
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Souza, Mônica Filomena Assis, Wellington Santos, Jean Kaique Valentim, et al. "Influence of homeopathy on the quality of quail eggs stored for different periods of time." International Journal of High Dilution Research - ISSN 1982-6206 21, no. 1 (2022): 21. http://dx.doi.org/10.51910/ijhdr.v21i1.1183.

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Introduction: The purpose of this trial was to assess the influence of homeopathy products on the diet of quails based on egg quality when submitted to different storage periods. Methodology: Two hundred, 45 day old Japanese quails and 80% of production were used, in a completely randomized design comprised of a 4x3 factorial, and 4 diets (basal feed, inert vehicle and 2 homeopathic products: Fertsigo® (Sulphur 10 CH, Sepia 15CH ) and Ovosigo® (Belladonna 12CH,Silicea 12 CH, Natrum mur. 30CH, Calcarea phos. 30CH, Sulphur 12CH) and 3 storage periods (0 days, 7 days and 14 days) with ten repetit
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Jiang, Fei, Jian-Wen Fang, Yin-Quan Ye, Yan-Jin Tian, Xian-Jun Zeng, and Yu-Lin Zhong. "Altered effective connectivity of primary visual cortex in primary angle closure glaucoma using Granger causality analysis." Acta Radiologica 61, no. 4 (2019): 508–19. http://dx.doi.org/10.1177/0284185119867644.

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Background Previous neuroimaging studies demonstrated that primary angle closure glaucoma patients were associated with abnormal intrinsic brain activity in primary visual cortex (V1). Purpose The purpose of this study was to investigate the effective connectivity patterns of V1 in patients with primary angle closure glaucoma. Material and Methods Thirty-seven patients with primary angle closure glaucoma (20 men, 17 women) and 36 healthy controls (20 men, 16 women) closely matched for age, sex, and education, underwent resting-state MRI scans. A voxel-wise Granger causality analysis method was
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Ilyas, Gokhan, and Fikri Burak Ipci. "Evaluation of the Relationship between Osteoporosis Parameters in Plain Hip Radiography and DXA Results in 156 Patients at a Single Center in Turkey." Diagnostics 13, no. 15 (2023): 2519. http://dx.doi.org/10.3390/diagnostics13152519.

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Background: The aim of the current study is to determine the relationship between osteoporosis findings in plain X-ray and dual-energy X-ray absorptiometry (DXA) measurement results and to create an alternative diagnostic method for osteoporosis without DXA measurement when necessary. Methods: DXA values and hip radiographs of 156 patients were retrospectively analyzed. Singh index (SI), Dorr index (DI), cortical thickness index (CTI), and canal-to-calcar ratio (CCR) measurements from both plain hip radiographs were determined by two observers. The correlation of the DXA parameters (hip total
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Kovaleva, G. V., and I. Yu Gavrilova. "CHANGES IN THE DOMINANT SPECIES AND SIZE STRUCTURE OF DIATOMS FROM THE SURFACE BOTTOM SEDIMENTS OF THE SEA OF AZOV OVER THE PAST 20 YEARS." Ecology. Economy. Informatics.System analysis and mathematical modeling of ecological and economic systems 1, no. 6 (2021): 96–103. http://dx.doi.org/10.23885/2500-395x-2021-1-6-96-103.

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The paper presents the results of diatom analysis of surface bottom sediments selected with a range of 20 years. Samples of surface sediments of the Sea of Azov collected in 1998 (before the salinization period) and in 2019 were studied. The results of the diatom analysis of the bottom sediments showed that the sediments were dominated by spores of diatoms from the genus Chaetoceros and stomatocysts of golden algae. In addition to spores and stomatocysts, diatoms from the genus Thalassiosira sp., Coscinodiscus sp., Ditylum brightwellii, Pseudosolenia calcar-avis and Thalassionema nitzschioides
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Mansouri, Alireza, Alexandre Boutet, Gavin Elias, et al. "NIMG-25. LESION-NETWORK ANALYSIS TO IDENTIFY PREFERENTIALLY-ENGAGED NETWORKS IN EPILEPTOGENIC TUMORS." Neuro-Oncology 21, Supplement_6 (2019): vi166—vi167. http://dx.doi.org/10.1093/neuonc/noz175.696.

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Abstract BACKGROUND Lesion network mapping (LNM) is a method used to identify potential networks that can be ascribed to particular neurological functions/ deficits. LNM has yet to be implemented for large brain lesions such as tumors. OBJECTIVES: To apply LNM for potential identification of vulnerable epileptogenic networks in tumors causing medically-refractory epilepsy (MRE), compared with non-epileptogenic tumors. METHODS MRE and non-epileptogenic lesions were normalized to standard space for group analysis. These were used as a seed in high-resolution normative resting state fMRI, which w
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Burton, H., A. Z. Snyder, T. E. Conturo, E. Akbudak, J. M. Ollinger, and M. E. Raichle. "Adaptive Changes in Early and Late Blind: A fMRI Study of Braille Reading." Journal of Neurophysiology 87, no. 1 (2002): 589–607. http://dx.doi.org/10.1152/jn.00285.2001.

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Braille reading depends on remarkable adaptations that connect the somatosensory system to language. We hypothesized that the pattern of cortical activations in blind individuals reading Braille would reflect these adaptations. Activations in visual (occipital-temporal), frontal-language, and somatosensory cortex in blind individuals reading Braille were examined for evidence of differences relative to previously reported studies of sighted subjects reading print or receiving tactile stimulation. Nine congenitally blind and seven late-onset blind subjects were studied with fMRI as they covertl
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Hagiyama, Akikazu, Norio Yamamoto, Yosuke Tomita, and Koji Demiya. "Letter to the editor: Calcar fracture gapping: a reliable predictor of anteromedial cortical support failure after cephalomedullary nailing for pertrochanteric femur fractures." BMC Musculoskeletal Disorders 23, no. 1 (2022). http://dx.doi.org/10.1186/s12891-022-05688-w.

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AbstractA recently published article by Song H et al. investigated the risk factors for anteromedial cortical support loss in pertrochanteric fractures treated with cephalomedullary nails. In this Correspondence, we would like to raise some concerns. Specifically, calcar fracture gap and anteromedial cortical support are different concepts in evaluating reduction quality. In addition, calcar fracture gap using immediate postoperative radiographic images has measurement bias. Lastly, explanatory variables selected for multivariable analysis are inappropriate. We would like to discuss and sugges
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Ren, Hanru, Lianghao Wu, Xu Zhang, Zhen Jian, and Chengqing Yi. "The effect of integrity of lesser tuberosity-medial calcar on postoperative outcome in the proximal humeral fracture." Journal of Orthopaedic Surgery and Research 18, no. 1 (2023). http://dx.doi.org/10.1186/s13018-023-03851-0.

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Abstract Background In proximal humeral fractures, the medial calcar is often considered an important stabilizing structure. When the medial calcar is disrupted, some patients may have accompanying humeral lesser tuberosity comminution that has not been noticed. To investigate the impacts of comminuted fragments of lesser tuberosity and calcar on postoperative stability, CT results, number of fragments, cortical integrity, and the variation of neck-shaft angle were compared in patients with proximal humeral fractures. Materials and methods From April 2016 to April 2021, this study included pat
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Liu, Dan, Cui Zhao, Wei Wang, et al. "Altered Gray Matter Volume and Functional Connectivity in Human Immunodeficiency Virus-Infected Adults." Frontiers in Neuroscience 14 (December 3, 2020). http://dx.doi.org/10.3389/fnins.2020.601063.

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People living with human immunodeficiency virus (HIV) (PLWH) are at high risk of neurocognitive impairment. The pathogenesis of neurocognitive impairment remains unclear, and there is still no diagnostic biomarker. By coupling three-dimensional T1-weighted imaging and resting-state functional imaging, we explored structural and functional alterations in PLWH and examined whether such imaging alterations had the potential to denote neurocognitive function. A total of 98 PLWH and 47 seronegative controls aged 20–53 years were recruited. Structural alterations were first explored between HIV-nega
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Kołodziejek, Jeremi. "Growth performance and emergence of invasive alien Rumex confertus in different soil types." Scientific Reports 9, no. 1 (2019). http://dx.doi.org/10.1038/s41598-019-56068-9.

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AbstractRumex confertus is known to be one of the most serious invasive weed species infesting meadows, pastures and ruderal lands throughout the Central Europe. Rumex confertus was grown in pot experiments using 8 soil types at 5 concentrations of nitrogen (N) and phosphorus (P). Based on harvest data, the variables, seedlings emergence, root: shoot (R: S) ratio, N and P concentration, chlorophyll content, Relative Colimitation Index (RCI) and dry matter allocation to plant components, were determined. N and P addition stimulated the growth of plants in different soils, as reflected by a sign
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Beirer, Marc, Moritz Crönlein, Arne J. Venjakob, et al. "Additional calcar support using a blade device reduces secondary varus displacement following reconstruction of the proximal humerus: a prospective study." European Journal of Medical Research 20, no. 1 (2015). http://dx.doi.org/10.1186/s40001-015-0178-5.

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Pandey, Prashant, K. K. Pandey, Ajay Dhanopeeya, and Surya Prakash Garg. "TO EVALUATE THE EFFICACY OF KICK STAND SCREW IN FIXATION OF SUBTROCHANTERIC FEMORAL FRACTURES USING CONTRALATERAL REVERSED DISTAL FEMORAL LOCKING PLATEPROSPECTIVE SINGLE CENTRIC STUDY." INDIAN JOURNAL OF APPLIED RESEARCH, September 1, 2020, 1–4. http://dx.doi.org/10.36106/ijar/9401597.

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PURPOSE- All type of plates when used for proximal femur fractures always has chances of mechanical failure due to lack of strength of the construct, but addition of ‘kick stand screw’ has some effects on stability of the construct. Aim of our study is to evaluate the efficacy of kick stand screw in fixation of subtrochanteric fractures using contralateral reversed distal femoral locking plate. METHOD- 30 patients of subtrochanteric fractures fixed using contralateral reversed distal femoral locking plate. N(1st)=15 fixed without kick stand screw and other N(2nd)=15 fixed using kick stand scre
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Zhu, Pingyi, Zihui Liu, Yi Lu, et al. "Alterations in Spontaneous Neuronal Activity and Microvascular Density of the Optic Nerve Head in Active Thyroid-Associated Ophthalmopathy." Frontiers in Endocrinology 13 (July 22, 2022). http://dx.doi.org/10.3389/fendo.2022.895186.

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PurposeTo investigate changes in local spontaneous brain activity in patients with active thyroid-associated ophthalmopathy (TAO) and explore the relationship between such alterations and microvascular indices.MethodsThirty-six active TAO patients with active phase and 39 healthy controls (HCs) were enrolled in this study. All participants underwent resting-state functional magnetic resonance imaging (rs-fMRI), neuropsychological tests, and ophthalmological examinations. The rs-fMRI-based fractional low-frequency fluctuation amplitude (fALFF) analysis methods were used to assess spontaneous br
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Zhang, Di, Xiaobin Huang, Cunnan Mao, et al. "Assessment of normalized cerebral blood flow and its connectivity with migraines without aura during interictal periods by arterial spin labeling." Journal of Headache and Pain 22, no. 1 (2021). http://dx.doi.org/10.1186/s10194-021-01282-y.

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Abstract Background Migraine constitutes a global health burden, and its pathophysiology is not well-understood; research evaluating cerebral perfusion and altered blood flow between brain areas using non-invasive imaging techniques, such as arterial spin labeling, have been scarce. This study aimed to assess cerebral blood flow (CBF) and its connectivity of migraine. Methods This study enrolled 40 patients with episodic migraine without aura (MwoA), as well as 42 healthy patients as control (HC). Two groups of normalized CBF and CBF connectivity were compared, and the relationship between CBF
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Ribeiro, Fernanda Lenita, Ashley York, Elizabeth Zavitz, Steffen Bollmann, Marcello GP Rosa, and Alexander Puckett. "Variability of visual field maps in human early extrastriate cortex challenges the canonical model of organization of V2 and V3." eLife 12 (August 15, 2023). http://dx.doi.org/10.7554/elife.86439.

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Visual field maps in human early extrastriate areas (V2 and V3) are traditionally thought to form mirror-image representations which surround the primary visual cortex (V1). According to this scheme, V2 and V3 form nearly symmetrical halves with respect to the calcarine sulcus, with the dorsal halves representing lower contralateral quadrants, and the ventral halves representing upper contralateral quadrants. This arrangement is considered to be consistent across individuals, and thus predictable with reasonable accuracy using templates. However, data that deviate from this expected pattern ha
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Budde, S., K. Tonin, E. Jakubowitz, et al. "Hip joint function and reconstruction of the anterior femoral offset in patients with short stem vs. conventional THA." Scientific Reports 13, no. 1 (2023). http://dx.doi.org/10.1038/s41598-023-29513-z.

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AbstractIn cases where mobility and joint function are impaired after implantation of a THA, weakening of hip movement in both extension/flexion and adduction/abduction may play a role due to shortening of the physiological lever arm of the hip muscles. Mechanical factors of influence include the lateral femoral offset, which affects the lever arm, and the antetorsion angle of the hip prosthesis, which affects the anterior femoral offset. This study aimed to investigate the effect of an altered antetorsion angle of the implant on the hip moments and gait patterns of the patient. For this study
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Sun, Mengdan, Luming Hu, Xiaoyang Xin, and Xuemin Zhang. "Neural Hierarchy of Color Categorization: From Prototype Encoding to Boundary Encoding." Frontiers in Neuroscience 15 (July 19, 2021). http://dx.doi.org/10.3389/fnins.2021.679627.

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A long-standing debate exists on how our brain assigns the fine-grained perceptual representation of color into discrete color categories. Recent functional magnetic resonance imaging (fMRI) studies have identified several regions as the candidate loci of color categorization, including the visual cortex, language-related areas, and non-language-related frontal regions, but the evidence is mixed. Distinct from most studies that emphasized the representational differences between color categories, the current study focused on the variability among members within a category (e.g., category proto
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Kim, Hun, Byung-Hoon Kim, Min-Kyeong Kim, Hyojung Eom, and Jae-Jin Kim. "Alteration of resting-state functional connectivity network properties in patients with social anxiety disorder after virtual reality-based self-training." Frontiers in Psychiatry 13 (September 20, 2022). http://dx.doi.org/10.3389/fpsyt.2022.959696.

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Social anxiety disorder (SAD) is a mental disorder characterized by excessive anxiety in social situations. This study aimed to examine the alteration of resting-state functional connectivity in SAD patients related to the virtual reality-based self-training (VRS) which enables exposure to social situations in a controlled environment. Fifty-two SAD patients were randomly assigned to the experimental group who received the VRS, or the control group who did not. Self-report questionnaires and resting-state functional magnetic resonance imaging (fMRI) were performed to assess clinical symptoms a
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Cheng, Panpan, Shuyan Song, Yumin Li, et al. "Aberrant Functional Connectivity of the Posterior Cingulate Cortex in Type 2 Diabetes Without Cognitive Impairment and Microvascular Complications." Frontiers in Endocrinology 12 (October 25, 2021). http://dx.doi.org/10.3389/fendo.2021.722861.

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ObjectiveWe aimed to investigate the alterations of brain functional connectivity (FC) in type 2 diabetes mellitus (T2DM) patients without clinical evidence of cognitive impairment and microvascular complications (woCIMC-T2DM) using resting-state functional MRI (rs-fMRI) and to determine whether its value was correlated with clinical indicators.MethodsA total of 27 T2DM and 26 healthy controls (HCs) were prospectively examined. Cognitive impairment was excluded using the Mini-Mental State Examination (MMSE) and the Montreal Cognitive Assessment (MoCA) scales, and microvascular complications we
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Burachevskaya, Marina, Tatiana Minkina, Tatiana Bauer, et al. "Fabrication of biochar derived from different types of feedstocks as an efficient adsorbent for soil heavy metal removal." Scientific Reports 13, no. 1 (2023). http://dx.doi.org/10.1038/s41598-023-27638-9.

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AbstractFor effective soil remediation, it is vital to apply environmentally friendly and cost-effective technologies following the notion of green sustainable development. In the context of recycling waste and preserving nutrients in the soil, biochar production and utilization have become widespread. There is an urgent need to develop high-efficiency biochar-based sorbents for pollution removal from soil. This research examined the efficacy of soil remediation using biochar made from three distinct sources: wood, and agricultural residues (sunflower and rice husks). The generated biochars we
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Zhang, Wenxin, Shang Zhang, Min Zhu, et al. "Changes of Structural Brain Network Following Repetitive Transcranial Magnetic Stimulation in Children With Bilateral Spastic Cerebral Palsy: A Diffusion Tensor Imaging Study." Frontiers in Pediatrics 8 (January 15, 2021). http://dx.doi.org/10.3389/fped.2020.617548.

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Introduction: Bilateral spastic cerebral palsy (BSCP) is the most common subtype of cerebral palsy (CP), which is characterized by various motor and cognitive impairments, as well as emotional instability. However, the neural basis of these problems and how repetitive transcranial magnetic stimulation (rTMS) can make potential impacts on the disrupted structural brain network in BSCP remain unclear. This study was aimed to explore the topological characteristics of the structural brain network in BSCP following the treatment of rTMS.Methods: Fourteen children with BSCP underwent 4 weeks of TMS
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