检索结果-南通市图书馆

Characterization of spatial relationships between three remotely sensed indirect indicators of biodiversity and climate:a 21years’data series review across the Canadian boreal forest

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Digital Earth 2016年第7期9卷 676-696页

作者： Liliana perez Trisalyn Nelson Nicholas C.Coops Fabio Fontana C.Ronnie Drever Laboratory of Environmental Geosimulation(LEDGE) Department of GeographyUniversity of MontrealMontrealQCCanada Spatial Pattern Analysis&Research(SPAR)Lab Department of GeographyUniversity of VictoriaVictoriaBCCanada Department of Forest Resources Management University of British ColumbiaVancouverBCCanada The Nature Conservancy OttawaONCanada

Climate drives ecosystem processes and impacts *** patterns over large areas,such as Canada’s boreal,can be monitored using indirect indicators derived from remotely sensed *** this paper,we characterized the historical space–time relationships between climate and a suite of indirect indicators of biodiversity,known as the Dynamic Habitat Index(DHI)to identify where climate variability is co-occurring with changes in biodiversity *** represented biodiversity using three indirect indicators generated from 1987 to 2007 National Oceanic and Atmospheric Administration Advanced Very High Resolution Radiometer *** quantifying and clustering temporal variability in climate data,we defined eight homogeneous climate variability zones,where we then analyzed the *** identified unique areas of change in climate,such as the Hudson Plains,that explain significant variations in *** variability in temperatures and growing season index had a strong influence on observed vegetation productivity and seasonality changes throughout Canada’s *** in precipitation,for most of the area,was not associated with DHI *** methodology presented here enables assessment of spatial–temporal relationships between biodiversity and climate variability and characterizes distinctive zones of variation that may be used for prioritization and planning to ensure long-term biodiversity conservation in Canada.

关键词： Climate change biodiversity boreal forest spatial–temporal analysis fPAR DHI

When do predatory mites (Phytoseiidae)attack? Understanding their diel and seasonal predation patterns

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2018年第6期25卷 1056-1064页

作者： Consuelo perez-Sayas Ernestina Aguilar-Fenollosa Monica A.Hurtado Josep A.Jaques Tatiana Pina Departament de Ciencies Agr&ries i del Medi Natural Universitat Jaume I (UJI)Unitat Associada d'Entomologia Agricola UJI-IVIACastello de la PlanaSpain Torres Hnos.y Sucs.S.A.U. Departamento de Calidad.Pol.Ind.AgricolaAlmenaraCastelloSpain

Predatory mites of the Phytoseiidae family are considered one of the most important groups of natural enemies used in biological *** behavioral patterns of arthropods can differ greatly daily and seasonally;however,there is a lack of literature related to Phytoseiidae diel and seasonal predation *** predatory activity of three phytoseiid species (two Tetranychidae-specialists,Phytoseiuluspersimilis and Neoseiulus californicus,and one omnivore,Euseius stipulatus)that occur naturally in Spanish citrus orchards was observed under laboratory conditions in winter and *** temperature and photoperiod of the climatic chamber where the mites were reared did not change during the *** study demonstrates that phytoseiids can exhibit diel and seasonal predatory patterns when feeding on Tetranychus urticae (Acari:Tetranychidae).Neoseiulus californicus was revealed to be a nocturnal predator in summer but diurnal in *** contrast,*** activity was maximal during the daytime,and *** showed no clear daily predation *** predatory patterns described in this study should be taken into account when designing laboratory studies and also in field samplings,especially when applying molecular techniques to unveil trophic relationships.

关键词： molecular techniques photoperiod phytoseiids predationbehavior Tetranychus urticae

Protective effects of D-002 on experimentally induced gastroesophageal reflux in rats

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2014年第8期20卷 2085-2090页

作者： Zullyt Zamora Vivian Molina Rosa Mas Yazmin Ravelo Yohany perez Ambar Oyarzabal Department of Pharmacology Centre of Natural ProductsNational Centre for Scientific ResearchHavana 10600Cuba

AIM: To investigate the effects of beeswax alcohols (D-002) on the esophageal damage induced by gastroesophageal reflux (GER) in rats.

关键词： D-002 Beeswax alcohols Esophagitis Gastroesophageal reflux Oxidative stress

Intraguild predation and competitive displacement between Nesidiocoris tenuis and Dicyphus maroccanus, two biological control agents in tomato pests

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2017年第5期24卷 809-817页

作者： Nadia G. Salas Gervassio Meritxell perez-Hedo Maria G. Luna Alberto Urbaneja Centro de Estudios Parasitol6gicos y de Vectores (CEPAVE -CCT La Plata- CONICET-UNLP) Boulevard 120 el 60 y 64 1900 La PlataArgentina Centro de Proteccion Vegetal y Biotecnologia Instituto Valenciano de Investigaciones Agrarias (IVlA) Unidad Asociada de Entomologia UJI-IVIA Carretera de Moncada - N&quera Km. 4.5 46113 Moncada Valencia Spain Unitat Associada d'Entomologia UJI-IVIA Departament de Ciencies Agr&ries i del Medi Natural Universitat Jaume I UJI Campus del Riu Sec E-12071 Castello de laPlana Spain

Dicyphus maroccanus Wagner and Nesidiocoris tenuis Reuter （Hemiptera： Miridae） are 2 biological control agents in tomatoes. Through the crop seasons, a natural shift in the occurrence of both mirids in favor ofN. tenuis has been observed at the end of the cropping cycle in eastern Spain. To better optimize their conservation, the reasons for the observed change, such as intraguild interactions （IGP） or the influence of environmental conditions, are worth elucidating. To do this, we first studied the IGP of adult females on heterospecific nymphs in the laboratory. We next studied exploitative competition between adults and nymphs of each species when feeding on Ephestia kueniella Zeller （Lepidoptera： Pyralidae） eggs in the laboratory. Finally, to analyze the competitive displacement between both mirids, we conducted a semifield experiment in which both predators were released together. All experiments were conducted at 2 temperature regimes （20 and 25~C）. Adult- to-nymph intraguild interactions occurred only at 25 ~C at very low levels, showing that N. tenuis attacked and consumed a greater proportion ofheterospecific nymphs. Nesidiocoris tenuis was a better competitor than D. maroccanus when feeding on the shared prey in the presence of its heterospecific nymph at 25 ~C. In semifield conditions, N. tenuis showed a competitive advantage over D. maroccanus at both temperatures. We conclude that there is not direct interference between both species, however, N. tenuis has a greater ability to outcompete, since it is best adapted to higher temperatures and it is able to remove food sources for D. maroccanus.

关键词： competition Mediterranean crops Miridae temperature tomato

Prognostic utility of NT-proBNP greater than 70,000 pg/mL in patients with end stage renal disease

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Geriatric Cardiology 2018年第7期15卷 476-478页

作者： Julio perez-Downes Carlos Palacio Saif Ibrahim Patrisha Shelley Alan Miller Pramod Reddy Division of General Internal Medicine University of Florida College of Medicine-Jacksonville USA Department of Interventional Cardiology University of Alabama Birmingham Birmingham AL USA Division of Cardiology Department ofMedicine University of Florida College of Medicine- Jacksonville USA

Natriuretic peptides are synthesized in ventricular myocytes and released into the circulation in response to increased myocardial wall stress, Causes of myocardial wall stress include pulmonary hypertension, ventricu... 详细信息

关键词： End stage renal disease Heart failure Heart failure reduced ejection fraction Mortality NT-proBNP

Efficacy of morning-only 4 liter sulfa free polyethylene glycol vs 2 liter polyethylene glycol with ascorbic acid for afternoon colonoscopy

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2014年第30期20卷 10620-10627页

作者： John M Rivas Alejro perez Marlow Hernez Alison Schneider Ferno J Castro Digestive Disease Center Cleveland Clinic FloridaWestonFL 33331United States Department of Gastroenterology University of Medicine and Dentistry of New JerseyStratfordNJ 08084United States Department of Internal Medicine Cleveland Clinic FloridaWestonFL 33331United States

AIM: To compare the bowel cleansing efficacy of same day ingestion of 4-L sulfa-free polyethylene glycol (4-L SF-PEG) vs 2-L polyethylene glycol solution with ascorbic acid (2-L PEG + Asc) in patients undergoing after... 详细信息

关键词： Bowel preparation Colonoscopy Screening colonoscopy Colon cancer screening

Atypical presentation of a ventricular papillary fibroelastoma

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Geriatric Cardiology 2017年第8期14卷 534-535页

作者： Julio perez-Downes Harold Dietzius Saif Ibrahim Vasant Jayasankar Leslie Oberst Department of Medicine University of Florida College of Medicine-Jacksonville USA Department of Cardiology Memorial tIospital USA Department of Cardiology University of Florida College of Medicine-Jacksonville USA Department of Cardiothoracic Surgery Memorial Hospital USA

Papillary fibroelastoma cardiac tumor. The most is the most common valvular common non-valvular site these minors present is the left ventricle, where they usually manifest as ischemic strokes or myocardial infarction. Although these tumors also have a risk of embolization into the peripheral system, reports of such events are exceedingly rare.

关键词： Fibroelastoma Ischemia Myocardium Neoplasm Thrombosis

Role of artificial intelligence in cardiology

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Cardiology 2023年第4期15卷 116-118页

作者： Rafael Vidal-perez Jose Manuel Vazquez-Rodriguez Servicio de Cardiología Unidad de Imagen y Función CardíacaComplexo Hospitalario Universitario A Coruña Centro de Investigación Biomédica en Red-Instituto de Salud Carlos ⅢA Coruña 15006A CoruñaSpain Servicio de Cardiología Complexo Hospitalario Universitario A CoruñaA Coruña 15006A CoruñaSpain

Artificial intelligence(AI)is the process of having a computational program that can perform tasks of human intelligence by mimicking human thought *** is a rapidly evolving transdisciplinary field which integrates many elements to develop algorithms that aim to simulate human intuition,decision-making,and object *** overarching aims of AI in cardiovascular medicine are threefold:To optimize patient care,improve efficiency,and improve clinical *** cardiology,there has been a growth in the potential sources of new patient data,as well as advances in investigations and therapies,which position the field well to uniquely benefit from *** this editorial,we highlight some of the main research priorities currently and where the next steps are heading us.

关键词： Artificial intelligence Machine learning Deep learning Electrocardiography Cardiac imaging

The impact of paralog genes:detection of copy number variation in spinal muscle atrophy patients

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

BIOCELL 2018年第3期42卷 87-91页

作者： Sergio LAURITO Juan A.CUETO Jimena perez María ROQUé IHEM Universidad Nacional de CuyoCONICET Departamento de Biología Universidad Nacional de CuyoFacultad de Ciencias Exactas y Naturales Instituto de Fisiología Universidad Nacional de CuyoFacultad de Ciencias Médicas

Spinal muscular atrophy(SMA)is caused by dysfunction of the alpha motor neurons of the spinal *** is an autosomal recessive disease associated to the SMN1 gene,located in the subtelomeric region of 5q13.A paralog SMN2 gene is located at the centromeric region of the same chromosome,which apparently originated by an ancestral inverted duplication occurring only in *** exon sequence differs in two nucleotides in exon 7 and exon 8,which leads to an SMN2 transcript that lacks exon 7 and results in a truncated ***(10%)of the SMN2 transcripts avoids the splicing of exon 7 but most of the copies are *** a disease scenario,the more SMN2 copies the higher possibility to restore at least partly the effects of SMN1 *** therapeutic approaches are being developed to increase the expression of *** determine the number of SMN1 and SMN2 copies,the methodology must distinguish accurately between both *** this work,we present the results obtained using multiplex ligation-dependent probe amplification(MLPA)in 60 SMA suspected patients/carriers derived from different regions of *** 32 of these DNA samples we found alterations in *** these,16 presented a heterozygous deletion(carrier status)and 14 an homozygous deletion(patient status)in exon 7 and 8 of *** one case,exon 7 was found homozygously deleted but exon 8 presented a single copy,and in another case,exon 7 was found heterozygously deleted while exon 8 was *** half of the patients(7/15)presented a normal diploid number of SMN2 while the other half(8/15)presented an increased *** this work we showed how a probe-based methodology such as MLPA was able to distinguish between the paralog genes and determine the amount of copies in DNA samples from suspected patients/carriers of SMA.

关键词： SMA CNV MLPA Paralog gene