检索结果-南通市图书馆

Use of calcein and alizarin red S for immersion marking of black rockfish Sebastes schlegelii juveniles

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Oceanology and limnology 2014年第1期32卷 88-98页

作者： lü Hongjian ZHANG Xiumei XI dan GAO Tianxiang College of Fisheries Ocean University of China College of Animal Science and Technology Southwest University

Black rockfish Sebastes schlegelii juveniles （30-40 mm total length） were immersed in a range of calcein （CAl） solutions at concentrations ranging from 50 to 250 mg/l and alizarin red S （ARS） solutions at concentrations ranging from 100 to 500 mg/l in filtered seawater （salinity 30） for 24 h. Fluorescent marks were detected in otoliths （sagittae, asteriscus）, scales, fin rays （dorsal, pectoral, ventral, anal, and caudal fin rays）, and fin spines （dorsal, ventral, and anal fin spines） after a 60-d growth experiment. With the exception of 50-100 rng/l CAl, acceptable marks were produced in the otoliths and fin spines by all concentrations of CAl and ARS. In particular, marks were clearly visible under normal light in the sagittae, asteriscus, and fin spines offish immersed in 200 500 mg/l, 300-500 rag/l, and 200-500 mg/lARS, respectively. Scales and fin rays had acceptable marks at much higher concentrations （≥50 mg/l CAl, ≥300 mg/l ARS for scales and ≥50 mg/l CAl,≥200 mg/l ARS for fin rays）. The mark quality was highest （i.e., acceptable marks were observed in all sampled structures after immersion marking） in fish immersed in 150-250 mg/l CAl or 300-500 mg/lARS. In addition, there was no significant difference in survival and growth of marked fish compared with controls 60 d post-marking （P〉0.05）.

关键词： Sebastes schlegelii calcein (CAl) alizarin red S (ARS) otoliths fin rays fin spines

Update on obesity surgery

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2006年第20期12卷 3196-3203页

作者： dan Eisenberg Andrew J Duffy Robert l Bell Department of Surgery Yale University School of Medicine 40 Temple St. Suite 3A New HavenCT 06510United States

The prevalence of obesity in the United States has reached epidemic proportions. With more than 30 million Americans clinically obese, the younger population has also been affected. Surgical therapy should be offered to the severely obese patient who is refractory to nonsurgical therapy, as established by the 1991 NIH Consensus Conference on Gastrointestinal Surgery for Severe Obesity. Surgery is currently the most effective therapy for weight loss. It is far more effective than any other treatment modality, both in terms of the amount of weight loss and in terms of durability in maintaining weight loss.

关键词： Obesity Gastrointestinal surgery Roux-Y gastric bypass

Psychosocial determinants of irritable bowel syndrome

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 2012年第7期18卷 616-626页

作者： Teodora Surdea-Blaga Adriana Bban dan l Dumitrascu 2nd Medical Department University of Medicine and Pharmacy IuliuHatieganuCluj-Napoca 400006Romania Department of Psychology Babes-Bolyai UniversityCluj-Napoca 400006Romania

From a pure motor disorder of the bowel,in the past few years,irritable bowel syndrome (IBS) has become a multifactorial disease that implies visceral hypersensitivity,alterations at the level of nervous and humoral communications between the enteric nervous system and the central nervous system,alteration of the gut microflora,an increased intestinal permeability and minimum intestinal *** and social factors can interfere with the communication between the central and enteric nervous systems,and there is proof that they are involved in the onset of IBS and influence the response to treatment and *** is evidence that abuse history and stressful life events are involved in the onset of functional gastrointestinal *** order to explain clustering of IBS in families,genetic factors and social learning mechanisms have been *** psychological features,such as anxiety,depression as well as the comorbid psychiatric disorders,health beliefs and coping of patients with IBS are discussed in relation to the symptoms and outcome.

关键词： Anxiety Depressive symptoms Irritablebowel syndrome Personality Psychosocial factors Sexual abuse Stressful events

Target tracking algorithm based on a broad learning system

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2022年第5期65卷 261-263页

作者： dan ZHANG Tieshan lI C.l.Philip CHEN He YANG Navigation College Dalian Maritime University Innovation and Entrepreneurship Education College Dalian Minzu University School of Automation Engineering University of Electronic Science and Technology of China Computer Science and Engineering College South China University of Technology

Target tracking is one of the most important research topics in the field of computer vision. It has been widely applied in aerospace, automatic monitoring, navigation, human-computer interaction, and artificial intel... 详细信息

关键词： Target tracking Broad learning system Selective search algorithm Multi-cue tracking Tracking adaptability

Population-based affective-disorder-related biomedical/biophysical multi-hyper-morbidity across the lifespan:A 16-year population study

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

World Journal of Psychiatry 2023年第7期13卷 423-434页

作者： David R l Cawthorpe dan Cohen Community Health Sciences and Psychiatry Cumming School of MedicineCalgary T2N4N1AlbertaCanada Mental Health Organization North-Holland North Utrecht UniversityAlkmaar 1811North HollandNetherlands

BACKGROUND There are few if any life-span population-based studies of psychiatric disorderassociated biomedical and biophysical disorders and diseases(morbidity).AIM To scope the present state of research regarding the biomedical and biophysical morbidity associated with affective and mental disorder in epidemiological samples,and to examine the life-span relationship between affective disorders and biomedical/biophysical disorders to illustrate a novel approach employing the odds ratio to represent the intensity of biomedical and biophysical morbidity associated in time in a *** A repeatable systematic literature search of PubMed was represented in ***,a regional population-based dataset was constructed and analyzed to represent the age-and sex-specific diagnoses(International Classification of Diseases Version 9,ICD-9)for those with and without affective *** analysis presents a novel index of the relative age-specific frequency of life-span biomedical and biophysical diagnoses associated with affective *** The volume of biomedical and biophysical morbidity associated with mental disorder literature has increased,yet few studies measure comprehensive temporal hyper-morbidity(over-representation of diseases over time,either before or after the index diagnostic event)in ***,there have been only a few population-based studies examining the morbidity associated with affective disorder and only one that examines the full diagnostic range of lifespan *** differences arose between males and females with more females than males having greater frequencies of *** age-specific distributions of the maximum proportional diagnosis frequency ratios for each sex illustrate the greatest diagnosis-specific differences when comparing the biomedical and biophysical diagnoses of those with and without affective disorder when the same diagnosis was represented in each grouping at the same a

关键词： Biomedical/biophysical morbidity Temporal hyper-morbidity Mental disorder Population Epidemiology

Temporal and Spatial Distribution of the late Devonian (Famennian) Strata in the Northwestern Border of the Junggar Basin, Xinjiang, Northwestern China

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 2017年第4期91卷 1413-1437页

作者： MA Xueping ZHANG Meiqiong ZONG Pu ZHANG Yubo lü dan The Key laboratory of Orogenic Belts and Crustal Evolution School of Earth and Space Sciences Peking University Beijing 100871 China Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China

The base of the Saerba Member （Mbr） of the Hongguleleng Formation （Fm.） probably lies in the Famennian Palmatolepis crepida Zone; the longkou Mbr is probably a sedimentary wedge that thins out northwards; the Duguer Mbr has an approximate age from the upper part of the Pa. marginifera Zone or the lower Pa. rugosa trachytera Zone through the top of the Pa. perlobata postera Zone; the Wulan Mbr has an age approximately corresponding to the whole Pa. gracilis expansa Zone. In the Bulongguoer section, the lower Mbr of the Hongguleleng Fro. corresponds to Famennian Pa. crepida Zone through Pa. marginifera Zone; the Middle Mbr probably ranges from the Pa. r. trachytera Zone through the Pa. g. expansa Zone. The basal Namu Mbr of the Heishantou Fm. is probably the product during and after the Hangenberg Event in the upper part of the Siphonodellapraesulcata Zone, which is still within the Devonian. In this context, the underlying Chasi Mbr may approximately correspond to the lower part of the S. praesulcata Zone （before the Hangenberg Event）. lateral distribution of strata indicates that the Upper Devonian in the Gennaren and Saerba areas each constitutes a structure of syncline, which differs from the previous recognition of a monocline structure.

关键词： Junggar Bulongguoer Hongguleleng Formation Heishantou Formation "Hebukehe"Formation Xinjiang

Protective effects of amphetamine on gastric ulcerations induced by indomethacin in rats

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2006年第44期12卷 7168-7171页

作者： Vlaicu Sandor Barbu Cuparencu dan l Dumitrascu Mircea A Birt Tibor l Krausz Department of Pharmacology and Toxicology University of Medicine and Pharmacy Iuliu Hatieganu Cluj-Napoca Romania Department of Pharmacology University of Oradea Romania 3rd Medical Clinic University of Medicineand Pharmacy Iuliu Hatieganu Cluj-Napoca Romania Department of Psychiatry Psychology and Educa-tional Sciences Faculty Babes-Bolyai University Cluj-Napoca Clinical Hospital Psychiatry-Ergotherapy Section Cluj-Napoca Romania

AIM: To study the effects of amphetamine, an indirect- acting adrenomimetic compound on the indomethacin- induced gastric ulcerations in rats. METHODS: Male Wistar-Bratislava rats were randomly divided into four groups: Group 1 (control), received an ulcerogenic dose of indomethacin (50 μmol/kg) and Groups 2, 3 and 4, treated with amphetamine (10, 25 and 50 μmol/kg). The drug was administered simulta- neously with indomethacin and once again 4 h later. The animals were sacrificed 8 h after indomethacin treatment. The stomachs were opened and the inci- dence, the number of lesions and their severity were evaluated. The results were expressed as percentage and as mean ± standard error (mean ± SE). RESUlTS: The incidence of ulceration in the control group was 100%. Amphetamine, at doses of 10, 25 and 50 μmol/kg, lowered the incidence to 88.89%, 77.78% and 37.5% respectively. The protection ratio was posi- tive: 24.14%, 55.17% and 80.6% respectively. The total number of ulcerations/rat was 12.44 ± 3.69 in the con- trol group. It decreased to 7.33 ± 1.89, 5.33 ± 2.38 and 2.25 ± 1.97 under the effects of the above-mentioned doses of amphetamine. CONClUSION: Amphetamine affords a significant dose-dependent protection against the indomethacin- induced gastric ulcerations in rats. It is suggested that the adrenergic system is involved in the gastric mucosa protection.

关键词： Amphetamine Gastric ulceration Indomethacin Rats

Assessment of the crucial factors influencing the responses of ammonia and nitrous oxide emissions to controlled release nitrogen fertilizer: A meta-analysis

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 Integrative Agriculture 2023年第11期22卷 3549-3559页

作者： lü Hui-dan WANG Xi-ya PAN Zhao-long ZHAO Shi-cheng State Key laboratory of Efficient Utilization of Arid and Semi-arid Arable land in Northern China/Key laboratory of Plant Nutrition and Fertilizer Ministry of Agriculture and Rural Affairs/Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijing 100081P.R.China

Reducing ammonia(NH3) and nitrous oxide(N2O) emissions have great effects on mitigating nitrogen(N) nutrient loss and greenhouse gas emissions. Controlled release urea(CRU) can control the N release rate, which reduces reactive N loss and increases nitrogen use efficiency relative to conventional urea(CU). However, the crucial factors influencing the responses of NH3and N2O emissions to CRU relative to CU are still unclear. In this study, we evaluated the responses of NH3and N2O emissions to CRU based on collected field data with a meta-analysis. CRU reduced the NH3and N2O emissions by 32.7 and 25.0% compared with CU, respectively. According to subgroup analysis, CRU presented better mitigation of NH3and N2O emissions in soils with pH 6.5–7.5(–47.9 and –23.7%) relative to either pH7.5(–29.3 and –17.3%), and in the rice season(–34.8 and –29.1%) relative to the wheat season(–19.8 and –22.8%). The responses of NH3and N2O emissions to CRU increased from rainfed(–30.5 and –17.0%) to irrigated(–32.5 and –22.9%), and then to paddy(–34.8 and –29.1%) systems. In addition, the response of N2O emission mitigation increased with increases in soil total nitrogen(TN);however, soil TN did not significantly affect the response of NH3volatilization. The reduction in NH3emission was greater in sandy-textured soil(–57.7%) relative to loam-textured(–32.9%) and clay-textured(–32.3%) soils, whereas soil texture did not affect N2O emission. Overall, CRU was a good option for reducing the NH3and N2O emissions relative to CU in agricultural production. This analysis improves our understanding of the crucial environmental and management factors influencing the mitigation of NH3and N2O emissions under CRU application, and these site-specific factors should be considered when applying CRU to reduce reactive N loss and increase NUE.

关键词： controlled release urea NH volatilization N O emission environmental factor management practice

Phase angle obtained by bioelectrical impedance analysis independently predicts mortality in patients with cirrhosis

在线全文

学校读者我要写书评

暂无评论

World Journal of Hepatology 2017年第7期9卷 401-408页

作者： Giliane Belarmino Maria Cristina Gonzalez Raquel S Torrinhas Priscila Sala Wellington Andraus luiz Augusto Carneiro D'Albuquerque Rosa Maria R Pereira Valéria F Caparbo Graziela R Ravacci lucas Damiani Steven B Heymsfield dan l.waitzberg Department of Gastroenterology Surgical DivisionFaculdade de Medicina da Universidade de Sao Paulo Postgraduate Program in Health and Behavior Universidade Católica de Pelotas Pennington Biomedical Research Center laboratory of Bone Metabolism Rheumatology DivisionFaculdade de Medicina da Universidade de Sao Paulo Research Institute Hospital do Coracao de Sao Paulo

AIM To evaluate the prognostic value of the phase angle(PA)obtained from bioelectrical impedance analysis(BIA) for mortality prediction in patients with cirrhosis. METHODS In total, 134 male cirrhotic patients prospectively completed clinical evaluations and nutritional assessment by BIA to obtain PAs during a 36-mo follow-up period. Mortality risk was analyzed by applying the PA cutoff point recently proposed as a malnutrition marker(PA ≤ 4.9°) in Kaplan-Meier curves and multivariate Cox regression models. RESUlTS The patients were divided into two groups according to the PA cutoff value(PA > 4.9°, n = 73; PA ≤ 4.9°, n = 61). Weight, height, and body mass index were similar in both groups, but patients with PAs > 4.9° were younger and had higher mid-arm muscle circumference, albumin, and handgrip-strength values and lower severe ascites and encephalopathy incidences, interleukin(Il)-6/Il-10 ratios and C-reactive protein levels than did patients with PAs ≤ 4.9°(P ≤ 0.05). Forty-eight(35.80%) patients died due to cirrhosis, with a median of 18 mo(interquartile range, 3.3-25.6 mo) follow-up until death. Thirty-one(64.60%) of these patients were from the PA ≤ 4.9° group. PA ≤ 4.9° significantly and independently affected the mortality model adjusted for Model for End-Stage liver Disease score and age(hazard ratio = 2.05, 95%CI: 1.11-3.77, P = 0.021). In addition, Kaplan-Meier curves showed that patients with PAs ≤ 4.9° were significantly more likely to die. CONClUSION In male patients with cirrhosis, the PA ≤ 4.9° cutoff was associated independently with mortality and identified patients with worse metabolic, nutritional, and disease progression profiles. The PA may be a useful and reliable bedside tool to evaluate prognosis in cirrhosis.

关键词： Bioelectrical impedance analysis Body composition Phase angle Nutritional assessment liver disease Cirrhosis Mortality