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Journal articles on the topic 'Two Groups of Samples'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Wang, Weichen, Zhiyi Qin, Zhixing Feng, Xi Wang, and Xuegong Zhang. "Identifying differentially spliced genes from two groups of RNA-seq samples." Gene 518, no. 1 (2013): 164–70. http://dx.doi.org/10.1016/j.gene.2012.11.045.

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Abhinav Agarwal, Manesh Lahori, and Dharmesh Kumar. "AN IN VITRO STUDY TO ASCERTAIN THE TRANSVERSE STRENGTH OF DENTURE BASE RESIN REINFORCED WITH TWO DIFFERENT FIBERS AND THEIR COMBINATION." UNIVERSITY JOURNAL OF DENTAL SCIENCES 6, no. 1 (2020): 01–05. http://dx.doi.org/10.21276/ujds.2020.6.1.2.

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   Purpose: The purpose of this study was to compare the transverse strength of denture base resin reinforced with two distinct fibers and their combination with the denture base resin without any reinforcement. MaterialsandMethod: Atotal40testsamplesofclearheatcureresinwerefabricatedwiththehelpofa customized metallic die and divided in to four groups- Group1: samples fabricated with clear acrylic resin without any reinforcement(Control group),Group2: samples reinforced with carbon fiber epoxy resin composite block, Group3: samples reinforced with glass fiber epoxy resin comp

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Padilla, Miguel A. "Confidence Intervals for the Coefficient Alpha Difference from Two Independent Samples (Groups)." Quantitative Methods for Psychology 19, no. 2 (2023): 194–216. http://dx.doi.org/10.20982/tqmp.19.2.p194.

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Duarte, Cleber, Lúcia H. Rapp Py-Daniel, and Cláudia Pereira de Deus. "Fish assemblages in two sandy beaches in lower Purus river, Amazonas, Brazil." Iheringia. Série Zoologia 100, no. 4 (2010): 319–28. http://dx.doi.org/10.1590/s0073-47212010000400006.

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Fish assemblages from two sandy beaches in the lower Purus river (Amazonas, Brazil) were compared. Four sampling groups were represented by: day and night samples in sandy beach inside the Reserva Biológica de Abufari (biological reserve) and day and night samples in the Reserva de Desenvolvimento Sustentável Piagaçu-Purus (sustainable development reserve). Samples were collected during low water levels (November) in 2007. The fish were sampled by means of seines with mesh size of 5 mm between opposing knots, 11 m long and 6 m wide. A total of 112 fish species belonging to nine orders and 27 f

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Hekkert, P. te Lintel, H. Dejonghe, and H. J. Habing. "Equilibrium Models for two Samples of OH/IR Stars." Publications of the Astronomical Society of Australia 9, no. 1 (1991): 20–25. http://dx.doi.org/10.1017/s1323358000024796.

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AbstractWe present a progress report on the dynamical analysis of the IRAS sample of OH/IR stars. This sample is complete within a distance of 8 kpc. We distinguish two groups of OH/IR stars, one with high and the other with low expansion velocity of the circumstellar shell.Using a quadratic programming method we fit a database of Galactic orbits to the observed distribution of radial velocities, longitudes and latitudes. The dynamical model yields a distribution function, based on two integrals of motion, for each group. Integration gives the density, the mean velocity and the velocity disper

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Lindblad, B. A. "Do comet groups exist?" International Astronomical Union Colloquium 83 (1985): 353–63. http://dx.doi.org/10.1017/s0252921100084037.

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AbstractThe phenomena of comet groups, i.e. sets of comets that exhibit similarity in their orbital elements, is investigated. A computer program based on the D-criterion of orbital similarity is used to search for comet pairs and groups. The reality of the groups is tested by making computer searches in random samples of comet orbits.The data base for the study is 599 long-period comet orbits. The degree of orbital similarity within a comet group was first assumed to be identical to that encountered in meteor streams. The computer search at this level produced five comet pairs plus two groups

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Gabriella Gulyás, Béla Béri, András Jávor, et al. "Analysis of longevity in Holstein Friesian cattle using proteomic approaches." Acta Agraria Debreceniensis, no. 48 (July 31, 2012): 21–25. http://dx.doi.org/10.34101/actaagrar/48/2447.

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The aim of the present study was to determine marker proteins those are associated with functional longevity of dairy cattle. Holstein-Friesian cows were grouped based on their performance as follows: group 1) individuals with good longevity traits; group 2) short production life because of poor reproduction traits; group 3) short production life with low milk yield. Twelve individuals were sampled in each group, blood and milk samples were collected from cows. Blood samples were analysed with two dimensional polyacrylamide gel electrophoresis (2D PAGE), MALDI TOF/TOF and nanoLCMS/MS. The milk

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Hasan, Samia S., Zenhom E. Salem, and Ahmed Sefelnasr. "Assessment of Hydrogeochemical Characteristics and Seawater Intrusion in Coastal Aquifers by Integrating Statistical and Graphical Techniques: Quaternary Aquifer, West Nile Delta, Egypt." Water 15, no. 10 (2023): 1803. http://dx.doi.org/10.3390/w15101803.

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The Quaternary aquifer in the western Nile Delta is threatened by seawater intrusion. Few studies have integrated diverse techniques for the assessment of seawater intrusion in this aquifer. The present study aims to determine the geochemical processes and impact of seawater intrusion on this aquifer. To accomplish this investigation, the integration of hydrogeochemical, statistical, multivariate statistical, and graphical tools were implemented on 75 groundwater samples and 5 soil samples. The physicochemical variables were analyzed using hierarchical cluster analysis (HCA), saturation index

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Buczkowska, Katarzyna, Jakub Sawicki, Monika Szczecińska, Stanisław Rosadziński, Mariola Rabska, and Alina Bączkiewicz. "Two morphologically distinct groups of the Calypogeia fissa complex were found in Europe." Biodiversity: Research and Conservation 23, no. 1 (2011): 29–41. http://dx.doi.org/10.2478/v10119-011-0014-x.

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Two morphologically distinct groups of theCalypogeia fissacomplex were found in EuropeTwo genetically distinct groups (PSand PB) detected previously within theC. fissacomplex in Europe were studied with respect to 47 morphometric characters. The two examined groups differed statistically significantly with respect to 34 morphological traits. The forward stepwise method of discriminant analysis showed that the set of diagnostic characters could be limited to nine. The best diagnostic features were morphological characters describing the shape of leaf: length and width of leaf, height of dorsal

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Yousief, Salah A., Khames T. Alzahrani, Maha F. ALSharif, et al. "Effect of Different Solutions on Two Milled Esthetic Restorative Materials." International Journal of Innovative Research in Medical Science 5, no. 11 (2020): 493–501. http://dx.doi.org/10.23958/ijirms/vol05-i11/988.

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Introduction: Today, ceramic plays a vital role in restorative dentistry. Common uses include full-coverage crown, inlays, onlays, and ceramic bridges. The demands for esthetics in dental restoration continue, new technologies tend to improve the material properties and develop new methods for application. Objective: This study aimed to evaluate the effect of different solutions on two milled esthetic restorative materials. Material and methods: In this study, a total of thirty blocks samples were machine milled by the aid of computer-aided design & computer-aided manufacturing (CAD/CAM) s

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Turci, Roberta, Enrico Finozzi, Giovanni Catenacci, Alessandro Marinaccio, Claudio Balducci, and Claudio Minoia. "Reference values of coplanar and non-coplanar PCBs in serum samples from two Italian population groups." Toxicology Letters 162, no. 2-3 (2006): 250–55. http://dx.doi.org/10.1016/j.toxlet.2005.09.021.

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Iranzo, Jaime, George Gruenhagen, Jorge Calle-Espinosa, and Eugene V. Koonin. "Protocol for comparing gene-level selection on coding mutations between two groups of samples with Coselens." STAR Protocols 4, no. 1 (2023): 102117. http://dx.doi.org/10.1016/j.xpro.2023.102117.

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Pringle, P. J., J. Jones, P. C. Hindmarsh, M. A. Preece, and C. G. Brook. "Performance of Proficiency Survey Samples in Two Immunoradiometric Assays of Human Growth Hormone and Comparison with Patients' Samples." Clinical Chemistry 38, no. 4 (1992): 553–57. http://dx.doi.org/10.1093/clinchem/38.4.553.

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Abstract The immunoradiometric assay (IRMA) used in our laboratory for the measurement of growth hormone (hGH; somatotropin) performed badly in the national proficiency survey program, the U.K. External Quality Assessment Scheme (EQAS). We compared our assay with another IRMA, which gave similar results for patients' samples and performed adequately in EQAS. The samples from EQAS are collected from patients with polycythemia and fall into two categories: those containing endogenous hGH and those supplemented with pituitary-derived hGH. Analysis of the two groups separately showed that the diff

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Pandey, Dr Alok Pandey, Dr Shibani Shetty, Dr Jayalakshmi K B, Dr PrasannalathaNadig, Dr Sujatha I, and Dr Deena Elizabeth. "Influence of two different desensitizers on the shear bond strength of two newly introduced bonding agents following the total etch strategy: an in vitro study." RGUHS Journal of Dental Sciences 12, no. 1 (2020): 3–10. http://dx.doi.org/10.26715/rjds.12_1_5.

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Objective: Evaluate the shear bond strengths of two different dentin bonding agents following the pretreatment of dentine with two different desensitizing agents. Materials and methods: 60 premolar samples were grounded to expose the dentine. The teeth were categorized into three major groups. Each major group was subdivided into 2 subgroups of 10 samples each. Groups 1&2 involved no pretreatment with desensitizer prior to the bonding agents application. Groups 3&4 were pretreated with Gluma desensitizing agent prior to the use of All bond Universal as self-etching modality in group 3

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Sambaraju, Prasanth. "Two sample unpaired T-test power calculation using simulation." Analecta Technica Szegedinensia 17, no. 4 (2023): 10–15. http://dx.doi.org/10.14232/analecta.2023.4.10-15.

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Statistical tests like t test are used to test the hypothesis for comparison of mean between two groups. The result from a t test is used to determine if there a significant difference between the two samples mean, which cannot be attributed to sampling error or to random occurrence. A t test is considered a parametric test, meaning test samples should meet assumptions of normality, equal variances and independence. The article aims to calculate the power of unpaired t test using simulation in Microsoft Excel.

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Syutkina, T. A. "Paleopathological analysis of the cranial samples from Pre-Columbian Cuba." VESTNIK ARHEOLOGII, ANTROPOLOGII I ETNOGRAFII, no. 1(60) (March 15, 2023): 139–50. http://dx.doi.org/10.20874/2071-0437-2023-60-1-12.

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The article presents a paleopathological analysis of two cranial samples from pre-Columbian Cuba: the Si-boney (also known as Archaic) sample consisting of 40 individuals and the Taíno sample composed of 27 indi-viduals. The Siboney are believed to have arrived to Cuba around 5000 years ago, and the Taíno inhabited the island since approximately 500 AD until decimation by the newcomers from the Old World. All the Taíno crania exhibit fronto-occipital artificial deformation. The main focus of the study is oral pathologies and bone abnormali-ties observed in the samples and how these reflect the

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Schuerger, J. M., and T. M. Sfiligoj. "Holland Codes and 16PF Global Factors: Sixty-Nine Samples." Psychological Reports 82, no. 3_suppl (1998): 1299–306. http://dx.doi.org/10.2466/pr0.1998.82.3c.1299.

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Global Factor scores from Cattell's Sixteen Personality Factor Questionnaire (16PF) were correlated with Holland codes using mean 16PF profiles from 69 occupational groups as data. Unlike prior studies, this study features occupational groups as the unit of analysis. Two analyses were done to test expectations, (a) 16PF scores would significantly discriminate among Holland types and (b) 16PF mean scores for each type would differ from the population mean in a direction consistent with prior research. Results met expectations on each analysis. Findings for two of the Global Factors (Anxiety and

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18

Fahmi, Mohamad Anis. "Perbedaan Ketersediaan Alat Pembawa Vaksin di Pulau Jawa dan Papua: Analisis Komparatif Dua Kelompok Sampel." Ficco Public Health Journal 01, no. 02 (2024): 57–65. https://doi.org/10.5281/zenodo.14561266.

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<strong>Background</strong>: One of the important functions of a vaccine carrier is to ensure that the vaccine is still fit for use. The vast area in Indonesia makes development still uneven between areas near and far from the capital. Java is the center of government, while Papua is one of the islands farthest from Java. The purpose of this study was to analyze the differences in the availability of vaccine carriers in Java and Papua. <strong>Methods</strong>: This is an analytic observational study with secondary data from the Risfaskes reports in 2011 and 2019. The subjects were all distric

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Zhang, Yingbin, Zhaoxi Yang, and Yehui Wang. "The Impact of Extreme Response Style on the Mean Comparison of Two Independent Samples." SAGE Open 12, no. 2 (2022): 215824402211081. http://dx.doi.org/10.1177/21582440221108168.

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Extreme response style (ERS) is prevalent in survey research using rating scales. It may cause biased results in group comparisons. This research conducted two sets of simulation studies to explore the magnitude of the ERS impact on mean comparisons between two independent samples. Data were generated from a multidimensional nominal response model. Study 1 examined the influence of ERS on the estimate of group differences in the variable of interest. The results indicated that ERS led to biased estimates, especially when these groups differed significantly in ERS. The correlation between ERS a

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Wang, Lin, and Chunpeng Fan. "Sample size calculations for comparing two groups of count data." Journal of Biopharmaceutical Statistics 29, no. 1 (2018): 115–27. http://dx.doi.org/10.1080/10543406.2018.1489409.

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21

Phillips, Alan. "Sample Size Estimation when Comparing More than Two Treatment Groups." Drug Information Journal 32, no. 1 (1998): 193–99. http://dx.doi.org/10.1177/009286159803200127.

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22

LEE, ERIC W. "TWO SAMPLE COMPARISON FOR LARGE GROUPS OF CORRELATED BINARY RESPONSES." Statistics in Medicine 15, no. 11 (1996): 1187–97. http://dx.doi.org/10.1002/(sici)1097-0258(19960615)15:11<1187::aid-sim223>3.0.co;2-i.

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Demirci, E., and S. Kordali. "Rhizoctonia Species and Anastomosis Groups from Corn Kernels in Turkey." Plant Disease 83, no. 9 (1999): 879. http://dx.doi.org/10.1094/pdis.1999.83.9.879c.

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In 1996, 165 samples of corn (Zea mays L.) kernels to be tested for seed-borne fungi were obtained from five provinces throughout the major corn-producing areas in the eastern Black Sea Region of Turkey: Artvin (41 samples), Rize (28 samples), Trabzon (32 samples), Giresun (30 samples), and Ordu (34 samples). A subsample of kernels (≈100 g each) from each sample was surface-disinfected in 3.5% NaOCl for 1 min. Kernels were washed in three changes of sterile water, and 100 kernels per subsample were placed in petri plates (5 kernels per plate) containing potato dextrose agar. After 5 to 7 days

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明, 鹤. "Analyzing the Score Data of Five Wine Samples from Two Groups of Experts Based on R Software." Statistical and Application 03, no. 04 (2014): 133–40. http://dx.doi.org/10.12677/sa.2014.34018.

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Rajasekhar, Reshma, Baby James, Minimol K. Johny, and Jose Jacob. "Evaluation of the effect of two commercially available non-alcoholic mouth rinses on the microhardness of composite material - An invitro study." Current Dental Research Journal 1, Issue 1 (2019): 14–21. http://dx.doi.org/10.12944/cdrj.01.o1.03.

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Composites have been widely used for anterior as well as posterior restorations due to increased aesthetic demands. Composite restorations placed in patients oral cavity is subjected to masticatory load, pH changes and chemical effect due to mouthwashes, beverages, food etc and the detrimental effects associated with these challenges on the microhardness of composite has to be determined. The study was conducted to evaluate the effect of two commercially available non-alcoholic mouth rinses on the microhardness of micro-hybrid and nanohybrid composite resins. Forty disc-shaped composite specim

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OLIVEIRA, Raylene Andrade, Rodrigo GURGEL-GONÇALVES, and Eleuza Rodrigues MACHADO. "Intestinal parasites in two indigenous ethnic groups in northwestern Amazonia." Acta Amazonica 46, no. 3 (2016): 241–46. http://dx.doi.org/10.1590/1809-4392201505883.

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ABSTRACT Approximately 90% of the population in the northwestern Amazonia is composed of indigenous people and their healthcare is still a challenge. The objective of this study was to determine the frequency of parasites in two indigenous ethnic groups (Baré and Baniwa) in northwestern Amazonia. Stool samples from 270 individuals (199 Baniwa and 71 Baré) were analyzed using Richie's method and the spontaneous sedimentation method. Statistical differences among the proportions of infected individuals based on gender, age, and ethnicity were determined. All individuals were infected by protozoa

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Verreault, Daniel, Louis Gendron, Geneviève M. Rousseau, et al. "Detection of Airborne Lactococcal Bacteriophages in Cheese Manufacturing Plants." Applied and Environmental Microbiology 77, no. 2 (2010): 491–97. http://dx.doi.org/10.1128/aem.01391-10.

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ABSTRACTThe dairy industry adds starter bacterial cultures to heat-treated milk to control the fermentation process during the manufacture of many cheeses. These highly concentrated bacterial populations are susceptible to virulent phages that are ubiquitous in cheese factories. In this study, the dissemination of these phages by the airborne route and their presence on working surfaces were investigated in a cheese factory. Several surfaces were swabbed, and five air samplers (polytetrafluoroethylene filter, polycarbonate filter, BioSampler, Coriolis cyclone sampler, and NIOSH two-stage cyclo

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Kapoor, Sidharth, Naveen Manuja, Seema Chaudhary, Harsimran Kaur, Chaitra TR, and Ashish Amit Sinha. "Effect of Qmix and Other Irrigants on Dentin Adhesives in Pulp Chambers of Primary Teeth: SEM Study." Journal of Clinical Pediatric Dentistry 41, no. 5 (2017): 363–67. http://dx.doi.org/10.17796/1053-4628-41.5.363.

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Objective: To compare the effect of different endodontic irrigants on microleakage of adhesives used within pulp chamber of primary molars. Study Design: 72 Primary molars were divided into 6 groups, according to 3 irrigants and 2 adhesives used. After de-roofing the pulp chamber, pulp was extirpated. In 36 samples, pulp chambers were bonded with Xeno V+ after irrigation with either QMix (Group1); 17%EDTA+5%NaOCl (Group2) or normal saline (Group3) and in other half samples, pulp chambers were bonded with SinglebondUniversal after irrigation with either QMix (Group 4); 17%EDTA+5% NaOCl (Group5)

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Ming Liu, Ming Liu, Mengyu Jia Mengyu Jia, Huijuan Zhao Huijuan Zhao, and Feng Gao Feng Gao. "Region stepwise reconstruction method based on two source–detector-separation groups for reconstructing background optical properties of two-layered slab sample." Chinese Optics Letters 12, no. 11 (2014): 111702–7. http://dx.doi.org/10.3788/col201412.111702.

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Demakopoulou, Katie, Nicoletta Divari-Valakou, Joseph Maran, Hans Mommsen, Susanne Prillwitz, and Gisela Walberg. "Clay paste characterization and provenance determination of Middle and Late Helladic vessels from Midea." Opuscula. Annual of the Swedish Institutes at Athens and Rome 10 (November 2017): 7–49. http://dx.doi.org/10.30549/opathrom-10-02.

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Results of the Neutron Activation Analysis (NAA) of 61 pottery samples of Middle and Late Helladic date from recent excavations in Midea are presented. Chronologically, the sampled pieces fall into two groups, the first of Middle Helladic and Late Helladic I/II, the second of LH III date, with most samples dating to LH IIIB or IIIC. The analyses suggest an Argive/North-eastern Peloponnesian provenance for the majority of the sampled pottery, since 26 of the samples are assigned to the NAA group Mycenae-Berbati (MYBE) and 15 to the NAA group Tiryns (TIR), including their subgroups. In addition

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Nakauchi, C. M., Koshi Maruyama, L. I. Kanzaki, et al. "Prevalence of HTLV-I antibody among two distinct ethnic groups inhabiting the Amazon region of Brazil." Revista do Instituto de Medicina Tropical de São Paulo 34, no. 4 (1992): 323–28. http://dx.doi.org/10.1590/s0036-46651992000400009.

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HTLV-I seroprevalences of 3.63% (02/55), 12.19% (10/82) and 13.88% (10/72) were demonstrated among Tiryio, Mekranoiti and Xicrin Amazonian Indians, respectively, by the Western blotting enzyme assay (WBEI). By indirect immuno electron microscopy (IIEM), 2 Tiriyo, 9 Mekranoiti and 6 Xicrin Amerindians were reactive. Of 44 serum samples from Japanese immigrants, none reacted by any of the techniques before mentioned. One, 8 and 6 serum samples from Tiryio, Mekranoiti and Xicrin Indians, respectively, were both WBEI and IIEM positive. Our results strongly suggest that HTLV-I and/or an HTLV-I anti

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Rood, Kristiana, Khodeza Begum, Hanmin Wang, et al. "Differential Expression of Non-Coding RNA Signatures in Thyroid Cancer between Two Ethnic Groups." Current Oncology 28, no. 5 (2021): 3610–28. http://dx.doi.org/10.3390/curroncol28050309.

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Filipino Americans show higher thyroid cancer recurrence rates compared to European Americans. Although they are likely to die of this malignancy, the molecular mechanism has not yet been determined. Recent studies demonstrated that small non-coding RNAs could be utilized to assess thyroid cancer prognosis in tumor models. The goal of this study is to determine whether microRNA (miRNA) signatures are differentially expressed in thyroid cancer in two different ethnic groups. We also determined whether these miRNA signatures are related to cancer staging. This is a retrospective study of archiva

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Brum, Betania, Sidinei José Lopes, Daniel Furtado Ferreira, Lindolfo Storck, and Alberto Cargnelutti Filho. "Likelihood ratio test between two groups of castor oil plant traits." Ciência Rural 46, no. 7 (2016): 1158–64. http://dx.doi.org/10.1590/0103-8478cr20151418.

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ABSTRACT: The likelihood ratio test (LRT), to the independence between two sets of variables, allows to identify whether there is a dependency relationship between them. The aim of this study was to calculate the type I error and power of the LRT for determining independence between two sets of variables under multivariate normal distributions in scenarios consisting of combinations of 16 sample sizes; 40 combinations of the number of variables of the two groups; and nine degrees of correlation between the variables (for the power). The rate of type I error and power were calculate at 640 and

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Ma, Hing-Keung. "Consistency of Stage Structure in Objective Moral Judgment across Different Samples." Psychological Reports 57, no. 3 (1985): 987–90. http://dx.doi.org/10.2466/pr0.1985.57.3.987.

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The consistency of stage structure in Rest's Defining Issues Test was examined in different samples. The responses of 124 Grade 10, 37 Grade 12, and 45 adult subjects were analysed. The Factor 1 loadings of the intermediate stages were the highest in only two of the six sample groups. In addition, the order of the Factor 2 loadings was also consistent in only two groups. Although the findings were not favorable in some subsamples, the over-all results which included a good factor pattern in the largest sample were regarded as providing some moderate support to the claim of an ordered sequence

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Medrano, L., M. Salinas, I. Salas, et al. "Sex identification of humpback whales, Megaptera novaeangliae, on the wintering grounds of the Mexican Pacific Ocean." Canadian Journal of Zoology 72, no. 10 (1994): 1771–74. http://dx.doi.org/10.1139/z94-239.

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The sex of 43 humpback whales (Megaptera novaeangliae) from different social groupings in the Mexican Pacific was identified by a molecular analysis of skin biopsy samples. Of the 18 whales sampled from surface-active groups, 17 were males. Three singers were sampled and identified as males. In two cases, whales interrupting and joining a singer without exhibiting agonistic behavior were identified as females. A higher proportion of males was found in the samples collected at the Revillagigedo Islands, reflecting a greater sampling effort on surface-active groups. Preliminary data showed that

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Sive, Jonathan I., Andrew Feber, Dean Smith, John Quinn, Stephan Beck, and Kwee L. Yong. "Global Methylation Analysis of Cyclin D1vs D2 Dysregulated Primary Myeloma Samples." Blood 124, no. 21 (2014): 3389. http://dx.doi.org/10.1182/blood.v124.21.3389.3389.

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Abstract Multiple myeloma (MM) may be classified according to D-type cyclin dysregulation. Amongst nonhyperdiploid cases, those with IgH translocations t(4;14) or t(14;16) express high levels of cyclin D2, and those with t(11;14) express elevated cyclin D1. Although translocation-based subgroups may behave differently, cyclin D2 dysregulated disease tends to progress with more proliferative disease and poorer outcomes compared to cyclin D1. The importance of methylation status has been described in MM, with the transition from MGUS to symptomatic MM characterised by global hypomethylation, and

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MAMABOLO, M. V., L. NTANTISO, A. LATIF, and P. A. O. MAJIWA. "Natural infection of cattle and tsetse flies in South Africa with two genotypic groups of Trypanosoma congolense." Parasitology 136, no. 4 (2009): 425–31. http://dx.doi.org/10.1017/s0031182009005587.

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SUMMARYThe polymerase chain reaction was used to detect trypanosomes in samples collected from cattle, wild animals and tsetse flies in KwaZulu-Natal Province, South Africa. A total of 673 samples from cattle and 266 from tsetse flies in the study area located near the Hluhluwe-Umfolozi Game Reserve were analysed. Both Trypanosoma congolense and T. vivax were found as single or mixed infections in cattle and tsetse flies. Moreover, the T. congolense in the infections were found to comprise 2 genotypic groups: the Savannah-type and the Kilifi-type, which were present either as single or mixed i

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Fortuner, Renaud, Pierre-Yves Louis, and Dominique Geniet. "On the morphometric identity of populations of Helicotylenchus pseudorobustus (Steiner, 1914) Golden, 1956 (Tylenchida: Hoplolaimidae)." Nematology 20, no. 5 (2018): 423–39. http://dx.doi.org/10.1163/15685411-00003148.

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Summary Helicotylenchus microlobus is considered to be a junior synonym of H. pseudorobustus by several authors while others consider it as valid. To clarify the status of both species, 39 samples collected from various countries were subjected to statistical analyses that showed they could be grouped into six groups. Topotypes of H. pseudorobustus and H. microlobus belong to two different groups. However, samples in the other groups were morphologically intermediate between these two groups. Characters used in the past to uphold the validity of H. microlobus were variable and overlapping from

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Mumford, Sonia, Chris Patterson, Joy Evered, Ray Brunson, Jay Levine, and Jim Winton. "Comparison of Individual and Pooled Sampling Methods for Detecting Bacterial Pathogens of Fish." Journal of Veterinary Diagnostic Investigation 17, no. 4 (2005): 305–10. http://dx.doi.org/10.1177/104063870501700401.

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Examination of finfish populations for viral and bacterial pathogens is an important component of fish disease control programs worldwide. Two methods are commonly used for collecting tissue samples for bacteriological culture, the currently accepted standards for detection of bacterial fish pathogens. The method specified in the Office International des Epizooties Manual of Diagnostic Tests for Aquatic Animals permits combining renal and splenic tissues from as many as 5 fish into pooled samples. The American Fisheries Society (AFS) Blue Book/US Fish and Wildlife Service (USFWS) Inspection Ma

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Mohammadi, A., R. F. Nejad, and N. N. Mofrad. "Fusarium verticillioides from sugarcane, vegetative compatibility groups and pathogenicity." Plant Protection Science 48, No. 2 (2012): 80–84. http://dx.doi.org/10.17221/49/2011-pps.

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Sugarcane plant samples affected by the disease pokkah boeng were collected from the major sugarcane producing areas in Iran. Fifty isolates of Fusarium verticillioides were recovered from diseased sugarcanes. Results of pathogenicity tests revealed that all isolates were pathogenic to sugarcane. Four hundred and eighty-five nitrate non-utilising mutants were generated from F. verticillioides isolates. Media used for nit mutant generation included potato dextrose agar, minimal medium and Czapeck agar amended with 1.8%, 2%, 2.5%, and 3% potassium chlorate. Nit mutants were divided into three ph

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Wittchen, Hans-Ulrich, Cecilia Ahmoi Essau, and Jürgen-Christian Krieg. "Anxiety Disorders: Similarities and Differences of Comorbidity in Treated and Untreated Groups." British Journal of Psychiatry 159, S12 (1991): 23–33. http://dx.doi.org/10.1192/s0007125000296219.

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The similarities and differences of comorbidity in treated and untreated samples with anxiety disorders were examined using data from the Munich Follow-up Study: 133 subjects with anxiety and depressive disorders and 101 former in-patients at the Max Planck Institute for Psychiatry. Diagnoses were based on the DIS, not using the optional DSM—III exclusion rules. In these epidemiological and clinical samples, 69% and 95% respectively had at least two diagnoses. The epidemiological sample was clearly differentiated from the clinical sample by age of onset. The development of both depressive epis

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Steinberg, Lisa M., and John M. Regan. "mcrA-Targeted Real-Time Quantitative PCR Method To Examine Methanogen Communities." Applied and Environmental Microbiology 75, no. 13 (2009): 4435–42. http://dx.doi.org/10.1128/aem.02858-08.

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ABSTRACT Methanogens are of great importance in carbon cycling and alternative energy production, but quantitation with culture-based methods is time-consuming and biased against methanogen groups that are difficult to cultivate in a laboratory. For these reasons, methanogens are typically studied through culture-independent molecular techniques. We developed a SYBR green I quantitative PCR (qPCR) assay to quantify total numbers of methyl coenzyme M reductase α-subunit (mcrA) genes. TaqMan probes were also designed to target nine different phylogenetic groups of methanogens in qPCR assays. Tot

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Pernthaler, Jakob, Annelie Pernthaler, and Rudolf Amann. "Automated Enumeration of Groups of Marine Picoplankton after Fluorescence In Situ Hybridization." Applied and Environmental Microbiology 69, no. 5 (2003): 2631–37. http://dx.doi.org/10.1128/aem.69.5.2631-2637.2003.

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ABSTRACT We describe here an automated system for the counting of multiple samples of double-stained microbial cells on sections of membrane filters. The application integrates an epifluorescence microscope equipped with motorized z-axis drive, shutters, and filter wheels with a scanning stage, a digital camera, and image analysis software. The relative abundances of specific microbial taxa are quantified in samples of marine picoplankton, as detected by fluorescence in situ hybridization (FISH) and catalyzed reporter deposition. Pairs of microscopic images are automatically acquired from nume

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Suzuki, Hisae, Yumeno Kondo, Chihiro Oda, et al. "Can Mitotic Figures in Hyperchromatic Crowded Groups be Cytodiagnostic Criteria for High-Grade Squamous Intra-epithelial Lesions?" Journal of Cytology 41, no. 2 (2024): 116–22. http://dx.doi.org/10.4103/joc.joc_156_23.

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Aims: The present study aimed to investigate whether the presence of mitoses in hyperchromatic crowded groups (HCGs) in cervical cytological specimens can serve as cytological criteria for high-grade squamous intra-epithelial lesions (HSILs). Methods and Material: Various parameters were examined, including the frequency of mitotic figures per high power field (HPF) in Pap, hematoxylin eosin (HE) samples, and PHH3 immunocytochemical (ICC) and immunohistochemical (IHC) analyses. Results: In the Pap and PHH3-ICC samples, the number of mitotic figures observed in HCGs was significantly higher in

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Cempírková, R. "Psychrotrophic vs. total bacterial counts in bulk milk samples." Veterinární Medicína 47, No. 8 (2012): 227–33. http://dx.doi.org/10.17221/5829-vetmed.

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The objective of the study was to determine psychrotrophic bacteria counts (PBC) and total bacterial counts (TBC) in bulk milk samples collected during a longer period (1999 to 2000). Two sets of samples were analysed. Set 1, including samples collected in three herds, was analysed by the Central Laboratory at Česk&eacute; Budějovice. TBC was determined using the apparatus Bactoscan, and PBC by culture according to IDF standards. Relative index pi expressing the PBC/TBC ratio was calculated for each sample. The value of pi for Set 1 was 0.09, ranging in herds included in this set from 0.05

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GRANT, MICHAEL A., CHERYL A. EKLUND, and SUE C. SHIELDS. "Monitoring Dairy Silage for Five Bacterial Groups with Potential for Human Pathogenesis." Journal of Food Protection 58, no. 8 (1995): 879–83. http://dx.doi.org/10.4315/0362-028x-58.8.879.

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Two types of silage routinely used at a dairy research facility were monitored over a 20 month period for five bacterial groups which have been associated with human pathogenesis. Those monitored were Listeria monocytogenes, Yersinia enterocolitica (motile), motile aeromonads, Campylobacter sp., and enterohemorrhagic Escherichia coli. Of 46 total silage samples, 8.7% were positive for L monocytogenes, 6.5% for Y. enterocolitica, and 10.9% for motile aeromonads. Campylobacter spp. and enterohemorrhagic E. coli were not isolated. The presence of pathogens was associated with elevated pH in silag

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Haller, Theresa, Eva Sommer, Thomas Steinkogler, et al. "Investigation of structural changes of atmospheric aerosol samples during two thermal–optical measurement procedures (EUSAAR2, NIOSH870)." Atmospheric Measurement Techniques 14, no. 5 (2021): 3721–35. http://dx.doi.org/10.5194/amt-14-3721-2021.

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Abstract. Thermal–optical measurement techniques are widely used for the monitoring of carbonaceous aerosols. Although results of different thermal–optical measurement techniques are comparable for total carbon, they can vary widely for values of elemental carbon especially in the presence of brown carbon. Charring of organic material during the inert heating phase of thermal–optical measurements has been found to be a major confounder, but no literature about investigations of structural changes during this process in atmospheric aerosols is available. In a recent study we investigated these

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Ghosh, Shilpa, Ritu Arora, Avani Hariani, Ravindra Saran, and Parul Jain. "Study of biomarkers p53, Ki-67, Bcl-2, and VEGF in pterygium." Indian Journal of Ophthalmology 72, Suppl 3 (2024): S448—S452. http://dx.doi.org/10.4103/ijo.ijo_2148_23.

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Purpose: To study the biomarkers present in primary pterygium samples of patients of Indian ethnicity and compare it with the samples obtained from the unaffected conjunctiva of the same eye. Methods: A prospective case-control study of 17 eyes in patients above 10 years of age with primary pterygium who underwent pterygium excision using limbal conjunctival autograft technique. The pterygium samples (cases) and conjunctival samples (controls) were sent for immunohistochemical (IHC) staining for the following biomarkers: p53, Bcl-2, Ki-67, and vascular endothelial growth factor (VEGF). Result:

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Kumar, V. S., and K. Vidhya. "Heart Plaque Detection with Improved Accuracy using Decision tree in comparison with Least Squares Support Vector Machine." CARDIOMETRY, no. 25 (February 14, 2023): 1584–89. http://dx.doi.org/10.18137/cardiometry.2022.25.15841589.

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Aim: The main aim of this research is to detect heart plaque using the Decision Tree algorithm with improved accuracy and comparing it with Least Squares Support Vector Machine. Materials and Methods: Decision tree and Least squares Support Vector Machine algorithms are two groups compared in this study. Each group has 20 samples and calculations utilized pretest power of 0.08 with 95% confidence interval. The G power is estimated for samples using clincalc, which has two groups: alpha, power, and enrollment ratio. These samples are split into two groups: training dataset (n = 489 [70%]) and t

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Wawrzyniak, Rafał, Wiesław Wasiak, Małgorzata Guzowska, Alina Bączkiewicz, and Katarzyna Buczkowska. "The Content of Volatile Organic Compounds in Calypogeia suecica (Calypogeiaceae, Marchantiophyta) Confirms Genetic Differentiation of This Liverwort Species into Two Groups." Molecules 29, no. 17 (2024): 4258. http://dx.doi.org/10.3390/molecules29174258.

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Calypogeia is a genus of liverworts in the family Calypogeiaceae. The subject of this study was Calypogeia suecica. Samples of the liverwort Calypogeia suecica were collected from various places in southern Poland. A total of 25 samples were collected in 2021, and 25 samples were collected in 2022. Volatile organic compounds (VOCs) from liverworts were analyzed by gas chromatography–mass spectrometry (GC–MS). A total of 107 compounds were detected, of which 38 compounds were identified. The identified compounds were dominated by compounds from the sesquiterpene group (up to 34.77%) and sesquit

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