Bibliografías temáticas / 821/.92

Literatura académica sobre el tema "821/.92"

Autor: Grafiati

Publicado: 26 de julio de 2024

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Artículos de revistas sobre el tema "821/.92"

Okrasa, Włodzimierz. "Book review. Sampling elusive populations: Applications to studies of child labour, 2013. By Vijay Verma, International Labour Organization". Statistics in Transition new series 15, n.º 3 (1 de septiembre de 2014): 477–86. http://dx.doi.org/10.59170/stattrans-2014-032.

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Costa, Allison H., Steven R. Spangler, Joseph R. Sink, Shea Brown y Sui Ann Mao. "DENSER SAMPLING OF THE ROSETTE NEBULA WITH FARADAY ROTATION MEASUREMENTS: IMPROVED ESTIMATES OF MAGNETIC FIELDS IN H ii REGIONS". Astrophysical Journal 821, n.º 2 (14 de abril de 2016): 92. http://dx.doi.org/10.3847/0004-637x/821/2/92.

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Jovčić, Branko, Katarina Novović, Brankica Filipić, Maja Velhner, Dalibor Todorović, Kazimir Matović, Zoran Rašić, Sonja Nikolić, Ferenc Kiškarolj y Milan Kojić. "Genomic Characteristics of Colistin-Resistant Salmonella enterica subsp. enterica Serovar Infantis from Poultry Farms in the Republic of Serbia". Antibiotics 9, n.º 12 (10 de diciembre de 2020): 886. http://dx.doi.org/10.3390/antibiotics9120886.

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The antimicrobial susceptibility testing was conducted on 174 single isolates from poultry farms in Serbia and it was determined that seven Salmonella spp. were multidrug resistant. Sixteen serotypes were detected, but only serotype Infantis confirmed reduced susceptibility to colistin. Seven colistin resistant Salmonella Infantis were studied in detail using the WGS approach. Three sequence types were identified corresponding to different epizootiology region. The isolate from the Province of Vojvodina 3842 and isolates from Jagodina (92 and 821) are represented by the sequence type ST413 and ST11, respectively. Four isolates from Kraljevo are ST32, a common S. Infantis sequence type in humans, poultry and food. The fosfomycin resistance gene fosA7 in isolate 3842 and the vgaA gene in isolate 8418/2948 encoding resistance to pleuromutilins were reported for the first time in serovar Infantis. The changes in relative expression of the phoP/Q, mgrB and pmrA/B genes were detected. Single nucleotide polymorphisms of the pmrB gene, including transitions Val164Gly or Val164Met, and Arg92Pro are described. Analyses of quinolone resistance determining region revealed substitutions Ser83Tyr in GyrA protein and Thr57Ser and Ser80Arg in ParC protein. Based on WGS data, there are two major clusters among analyzed Salmonella Infantis isolates from central Serbia.

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Robinett, Molly A. y Deborah G. McCullough. "White ash (Fraxinus americana) survival in the core of the emerald ash borer (Agrilus planipennis) invasion". Canadian Journal of Forest Research 49, n.º 5 (mayo de 2019): 510–20. http://dx.doi.org/10.1139/cjfr-2018-0320.

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Despite catastrophic ash (Fraxinus spp.) mortality observed by the mid-2000s in the epicenter of the emerald ash borer (EAB) (Agrilus planipennis Fairmaire) invasion in southeast Michigan, we noticed numerous live white ash (Fraxinus americana L.) in some forests in this region. In 2015, we inventoried overstory trees and regeneration in 28 white ash sites spanning 11 counties. White ash survival ranged from 0% to 100% of stems. Overall, 75% of 821 white ash trees, ranging from 10.0 to 44.0 cm diameter at breast height, and 66% of the white ash basal area, ranging from 0.3 to 3.5 m2·ha–1, were alive. Nearly all live white ash had signs of previous EAB colonization, but 83% had healthy canopies (≤10% canopy dieback). Green ash trees were recorded in 27 sites, but 92% were killed by EAB. Model selection indicated that variation in white ash survival was related to white ash abundance and distance of sites from the original EAB epicenter but not to green ash related variables or to the distance of sites from the Asian parasitoid release or recovery locations. Regeneration strata were dominated by white ash, suggesting that some white ash populations may persist in post-invasion areas.

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Lopes, Henrique Moreira, Maria Lucia Pereira Lima, Gabriel Carletti Zilião, João Alberto Negrão, Flávia Fernanda Simili, Bianca Vilela Pires y Lenira El Faro. "Performance of Nellore females in tropical pastures during the rainy season when supplemented with molasses blocks". Semina: Ciências Agrárias 40, n.º 5 (4 de julio de 2019): 1991. http://dx.doi.org/10.5433/1679-0359.2019v40n5p1991.

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The objective of this study was to measure the effect of supplementation with molasses blocks compared with conventional mineral supplementation (with specific formulations for the rainy and dry season) in 92 7-month-old Nellore heifers (Experiment 1) and 40 primiparous 31-month-old Nellore cows (Experiment 2) in Marandu grazing areas. The following measurements were obtained: weight, supplement intake, blood urea and glucose in heifers (Experiment 1), supplement intake, cow weight, body score, calf weight and ruminal temperature and drinking events in primiparous females (Experiment 2). The average molasses block intake was 242 g day-1 per heifer, with an average weight gain of 0.290 kg day-1; the heifers who consumed the molasses blocks were heavier during the rainy season (P < 0.05; Experiment 1). In Experiment 2, molasses block intake varied from 77 to 821 g day-1 per primiparous female, and the average intake in the control group was between 100 and 370 g day-1. The primiparous females given molasses blocks displayed lower weight loss due to calving (P < 0.05) and retained higher body scores at 150 days postpartum (P < 0.05). Ruminal temperature (P < 0.05) and drinking events (P < 0.05) were higher in primiparous Nellore females given molasses blocks. Overall, molasses blocks effectively increased Nellore female performance during the rainy season in Marandu grass pastures.

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Tabaee, Abtin, Vijay K. Anand, Yolanda Barrón, David H. Hiltzik, Seth M. Brown, Ashutosh Kacker, Madhu Mazumdar y Theodore H. Schwartz. "Endoscopic pituitary surgery: a systematic review and meta-analysis". Journal of Neurosurgery 111, n.º 3 (septiembre de 2009): 545–54. http://dx.doi.org/10.3171/2007.12.17635.

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Object Surgery on the pituitary gland is increasingly being performed through an endoscopic approach. However, there is little published data on its safety and relative advantages over traditional microscope-based approaches. Published reports are limited by small sample size and nonrandomized study design. A meta-analysis allows for a description of the impact of endoscopic surgery on short-term outcomes. Methods The authors performed retrospective review of data from their institution as well as a systematic review of the literature. The pooled data were analyzed for descriptive statistics on short-term outcomes. Results Nine studies (821 patients) met inclusion criteria. Overall, the pooled rate of gross tumor removal was 78% (95% CI 67–89%). Hormone resolution was achieved in 81% (95% CI 71–91%) of adrenocorticotropic hormone secreting tumors, 84% (95% CI 76–92%) of growth hormone secreting tumors, and 82% (95% CI 70–94%) of prolactin secreting tumors. The pooled complication rates were 2% (95% CI 0–4%) for CSF leak and 1% (95% CI 0–2%) for permanent diabetes insipidus. There were 2 deaths reported in the literature that were both related to vascular injury, giving an overall mortality rate of 0.24%. Conclusions The results of this meta-analysis support the safety and short-term efficacy of endoscopic pituitary surgery. Future studies with long-term follow-up are required to determine tumor control.

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Clarke, Janet T., Sue E. Moore y Donald K. Ljungblad. "Observations on gray whale (Eschrichtius robustus) utilization patterns in the northeastern Chukchi Sea, July–October 1982–1987". Canadian Journal of Zoology 67, n.º 11 (1 de noviembre de 1989): 2646–54. http://dx.doi.org/10.1139/z89-374.

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A total of 821 gray whales were seen during aerial surveys in the northeastern Chukchi Sea from July through October 1982–1987. Gray whale distribution extended from south of Point Hope to northeast of Point Barrow, Alaska, between 0.5 and 166 km offshore. Monthly abundance estimates (number of whales/survey hour) were highest in July (6.81) and lowest in October (0.40). Gray whales were usually in open water (82%, n = 670) or in light ice (16%, n = 134) and were seldom associated with heavy ice (2%, n = 17). Most whales were feeding (63%, n = 514), with the majority of the others swimming and diving (24%, n = 193) or forming part of a cow–calf association (9%, n = 72). One group of three whales was involved in sexual activity. Feeding whales were seen most often within 40 km of the shore, but also occurred offshore. Thirty-six gray whale calves were seen. Calf abundance (number of calves/survey hour) was significantly higher (p < 0.001) in July, when 92% (n = 33) of all calves were seen, than in any other month. Most cow–calf pairs were seen nearshore between Point Hope and Point Barrow. Monthly calf ratios (number of calves/number of whales) ranged from 0.09 in July to 0.00 in October, with an overall rate of 0.04.

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Tallantyre, EC, R. Corns, PE Smith y S. Thomson. "P54 Formative test questions in neurology and neurosurgery". Journal of Neurology, Neurosurgery & Psychiatry 90, n.º 3 (14 de febrero de 2019): e37.3-e36. http://dx.doi.org/10.1136/jnnp-2019-abn.119.

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ObjectivesTo provide a formative educational test of knowledge that allows clinicians to measure themselves against their peers.DesignAnnual Neurosurgery and Neurology knowledge tests, supported by the ABN & SBNS, have been available since 2014 (NSurg) and 2017 (Neurol). The NSurg test requires all candidates to participate over 3 days, answers are available after the test whereas the Neurol formative questions are available over 6 weeks, answers are available immediately.SubjectsThere have been 821 first attempts at the formative questions; NSurg; 44, 63,187,143,164 and Neurol; 74, 146. Candidates are mostly from UK (NSurg 92%, Neurol 69%) and mostly specialty trainees (NSurg 98%, Neurol 63%).MethodsThe formative questions are delivered through the ebrain virtual learning platform, statistics are generated automatically. Proposed questions are written by candidates as ‘payment’ for doing the formative test.ResultsMean Cronbach’s alpha was 87.3%. The mean score for the tests was 60.4% (Range 55.9%–77.9%). Feedback is voluntary: In 2018 17 feedback comments were received, 10 were unambiguously positive, 5 were mixed including criticism of one or more questions, 2 were judged to be neutral. Examples of feedback comments received this year included ‘Comprehensive exam that covers a wide range of topics’ and ‘This is of great value’.ConclusionsThis formative educational initiative has high internal consistency and solid feedback. Although set up differently, it is proving both valuable and popular in both specialties.

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Castañeda-Porras, Oneida y Omar Segura. "Carga de enfermedad por lesiones de causa externa en Casanare, Colombia, 2008-2012". Revista de Salud Pública 20, n.º 2 (1 de marzo de 2018): 163–70. http://dx.doi.org/10.15446/rsap.v20n2.64066.

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Objetivo Estimar la carga de enfermedad por lesiones de causa externa (LCE) en el departamento de Casanare durante 2008-2012.Métodos Estudio descriptivo retrospectivo desde los registros de la notificación al Sivigila de los eventos agrupados como LCE y los eventos reportados al Sistema de Vigilancia Epidemiológica de Lesiones de Causa Externa (SIVELCE). Análisis de variables en tiempo-lugar-persona mediante estadística descriptiva, con plantillas disponibles vía OMS en Microsoft Office® Excel 2013 y Epi-Info® 7.1.3.Resultados Entre 2008-2012 fueron notificados al Sistema de Salud Pública (SIVIGILA) 5 829 casos agrupados como LCE: accidente ofídico 751(12,9%), agresiones por rabia 3 774(64,7%), intoxicaciones 1 231(21,1%), lesiones por pólvora 32(0,5%) y violencia 41(0,7%), razón hombre/mujer 1:1, edad promedio 25±19,3(r=0,01-92) años, años de vida ajustados por discapacidad (AVAD) 821(2,5 años por 1 000 habitantes); y, al SIVELCE 15 539 reportes: lesiones intencionales 12 834(82,6%) y lesiones no intencionales 2 704(17,4%), razón hombre/mujer 1:1, edad promedio 28±14,1(r=0,03-90) años, relación entre morir por lesiones intencionales vs lesiones no intencionales tuvo una razón de disparidad OR=0,12 (X²=1 060,56 1 g.l, valor-p=0,0), AVAD 18 179(55,8/1 000).Conclusiones Las LCE afectan por igual a hombres y mujeres, los AVAD ocurren a expensas de la morbilidad. Todas las LCE son prevenibles, por tanto, es necesario fortalecer las respectivas acciones de vigilancia, prevención y control.

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Gutteridge, R. J., G. L. Bateman y D. Hornby. "Comparison of the effects of spring applications of ammonium chloride and other nitrogen fertilizers on take-all in winter wheat". Journal of Agricultural Science 108, n.º 3 (junio de 1987): 567–72. http://dx.doi.org/10.1017/s002185960007996x.

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SummaryField experiments made in 1984 and 1985 compared the effects of ammonium chloride with those of other nitrogen fertilizers applied to winter wheat in spring. The dressing was divided, 40 kg N/ha in March and 160 kg N/ha in April. In both years take-all in July was at levels which usually decrease yield, and take-all ratings were greatest in plots treated with ‘Nitro-Chalk’ (calcium ammonium nitrate) and least in plots treated with ammonium sulphate, but the differences were not statistically significant. Ammonium chloride and the other treatments, urea and ‘Nitro-Chalk’ with potassium chloride, had intermediate effects and the ranking of treatments according to disease was consistent in both years. In 1984 the mean yield was 8·27 t/ha, range 7·92 t/ha (with ammonium chloride) to 859 t/ha (with ‘Nitro-Chalk’) and in 1985, 821 t/ha, range 7·;42 t/ha (with ‘Nitro-Chalk’) to 8·55 t/ha (with ammonium sulphate). In both years treatments had no significant effects on yields and the relationship between yield and disease was obscured in 1985 because of highly correlated disease and block effects.Whereas applying spring nitrogen all in the ammonium form seemed to decrease take-all slightly, the effects on yields of winter wheat were inconsistent. There is no evidence of extra benefit to be gained from applying the ammonium as ammonium chloride to crops at risk from take-all in this country, but there may be some benefit in applying KCl with ‘Nitro-Chalk’ top-dressings in the spring.

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Libros sobre el tema "821/.92"

Venus As a Bear. Carcanet Press, Limited, 2018.

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Through. Carcanet Press, Limited, 2016.

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