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纺梭负蝗过冷却能力和低温存活率研究

北方农业学报 2024年第3期52卷 108-113页

作者：李文博 HAIDER BASHIR nawaz 王自杰唐佳威杨爽陈欢欢田睿林曲靖师范学院生物资源与食品工程学院云南曲靖655011 黑龙江省农业科学院佳木斯分院黑龙江佳木斯154007 谱尼测试集团股份有限公司吉林长春130103 内蒙古师范大学生命科学与技术学院内蒙古呼和浩特010022

【目的】明确纺梭负蝗(Atractomorpha burri)种群的耐寒能力。【方法】利用过冷却点测定仪分别测定云南省曲靖市纺梭负蝗各虫态过冷却能力和低温条件下低龄和老龄若虫的存活率。【结果】不同虫态纺梭负蝗的过冷却点和结冰点差异显著(P<0... 详细信息

【目的】明确纺梭负蝗(Atractomorpha burri)种群的耐寒能力。【方法】利用过冷却点测定仪分别测定云南省曲靖市纺梭负蝗各虫态过冷却能力和低温条件下低龄和老龄若虫的存活率。【结果】不同虫态纺梭负蝗的过冷却点和结冰点差异显著(P<0.05),卵期过冷却点和结冰点最低,分别为-16.16、-8.13℃;3龄若虫的过冷却点和结冰点最高,分别为-8.35、-5.20℃。雄性成虫的过冷却点和结冰点分别为-10.26、-7.18℃,低于雌性成虫的-9.00、-7.00℃。过冷却点和结冰点在同一虫态不同个体中的变异符合正态分布。3龄若虫和5龄若虫在低温条件下达到50%以上死亡率的温度分别为-7.00、-9.00℃。【结论】纺梭负蝗卵期的耐寒性最强,5龄若虫具有更强的低温耐受性,雄性成虫抗寒能力强于雌性成虫。

关键词：纺梭负蝗过冷却能力低温存活率

EFFECT OF THE COMPOSITION OF m-CRESOL/H_2O SOLVENT ON HYDRODYNAMIC PROPERTIES OF NYLON 6

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Chinese Journal of Polymer Science 2006年第4期24卷 369-377页

作者： Musa Kaleem Baloch Mohsan nawaz Department of Chemistry

The intrinsic viscosity [η], Huggins constant （Ku）, [η]0, α^3 and flow activation energy values of nylon 6 have been measured in wateηm-cresol （0/100-20/80） systems at different temperatures （20-60℃）. It has been found that the intrinsic viscosity, [η]0 and α^3 increase with the increase in water contents in m-cresol up to 15% and then decrease. They increase with the increase in temperature irrespective of solvent composition. It has been noted that the percent increase of α^3 is the highest at 60℃ and the lowest at 20℃ for a particular solvent system. The intrinsic viscosity data obey Arrhenius equation over the considered conditions. The activation energy and the KH values decrease very sharply with the addition of water, giving a minimum value at 15% of water and then increase slowly. The variation of all the parameters has been explained in terms of variation in thermodynamic quality of solvent with the addition of water to m-cresol and change in temperature, resulting in the change of conformational and orientational properties of polymer molecules. This change of solvent quality also results in variation of selective sorption of solvent over the polymer, such as hydrogen bonding, etc.

关键词： Intrinsic viscosity Huggins constant Thermodynamic quality of solvent Activation energy Hydrogen bonding Conformation Selective sorption.

Ambient noise H/V spectral ratio in site effects estimation in Fateh jang area, Pakistan

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Earthquake Science 2015年第1期28卷 87-95页

作者： S.M.Talha Qadri Bushra nawaz S.H.Sajjad Riaz ahmad Sheikh Department of Earth Sciences University of Sargodha College of Earth and Environmental Sciences University of the Punjab

Local geology or local site effect is a crucial component while conducting seismic risk assessment studies. Investigations made by utilization of ambient noise are an effective tool for local site estimation. The present study is conducted to perform site response analysis at 13 different sites within urban settlements of Fateh jang area （Pakistan）. The aim of this study was achieved by utilizing Nakamura method or H/V spectral ratio method. Some important local site parameters, e.g., the fundamental fre- quencies f0 of soft sediments, amplitudes A0 of corre- sponding H/V spectral ratios, and alluvium thicknesses over 13 sites within the study area, were measured and analyzed. The results show that the study area reflects low fundamental frequency fo. The fundamental frequencies of the sediments are highly variable and lie in a range of 0.6-13.0 Hz. Similarly, amplification factors at these sites are in the range of 2.0-4.0.

关键词： Local site effectspectral ratios Fundamentalfactor Alluvium thickness Ambient noise H/Vfrequency Amplification

Effects of medicinal plants on Alzheimer＇s disease and memory deficits

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Neural Regeneration Research 2017年第4期12卷 660-670页

作者： Muhammad Akram Allah nawaz Department of Eastern Medicine and Surgery Faculty of Medical and Health Sciences The University of Poonch Rawalakot Azad Jammu and Kashmir Pakistan First Department of Internal Medicine Faculty of Medicine University of Toyama Toyama Japan

Alzheimer＇s disease is an age-related neurodegenerative disorder characterized by memory deficits. Various studies have been carried out to find therapeutic approaches for Alzheimer＇s disease. However, the proper treatment option is still not available. There is no cure for Alzheimer＇s disease, but symptomatic treatment may improve the memory and other dementia related problems. Traditional medicine is practiced world- wide as memory enhancer since ancient times. Natural therapy including herbs and medicinal plants has been used in the treatment of memory deficits such as dementia, amnesia, as well as Alzheimer＇s disease since a long time. Medicinal plants have been used in different systems of medicine, particularly Unani system of medicines and exhibited their powerful roles in the management and cure of memory disorders. Most of herbs and plants have been chemically evaluated and their efficacy has also been proven in clinical trials. However, the underlying mechanisms of actions are still on the way. In this paper, we have reviewed the role of different medicinal plants that play an important role in the treatment of Alzheimer＇s disease and memory deficits using conventional herbal therapy.

关键词： nerve regeneration memory Alzheimer's disease medicinal plants efficacy literature review neural regeneration

Stem cell-derived exosomes:roles in stromal remodeling,tumor progression,and cancer immunotherapy

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癌症 2015年第12期34卷 541-553页

作者： Farah Fatima Muhammad nawaz Department of Pathology and Forensic Medicine Faculty of Medicine Ribeirao PretoUniversity of Sao Paulo Department of Rheumatology and Inflammation Research University of Gothenburg

Stem cells are known to maintain sternness at least in part through secreted factors that promote stem-like phenotypes in resident *** evidence has clarified that stem cells release nano-vesicles,known as exosomes,which may serve as mediators of cell-to-cell communication and may potentially transmit stem cell phenotypes to recipient cells,facilitating stem cell maintenance,differentiation,self-renewal,and *** has become apparent that stem cell-derived exosomes mediate interactions among stromal elements,promote genetic instability in recipient cells,and induce malignant *** review will therefore discuss the potential of stem cell-derived exosomes in the context of stromal remodeling and their ability to generate cancer-initiating cells in a tumor niche by inducing morphologic and functional differentiation of fibroblasts into tumor-initiating *** addition,the immunosuppressive potential of stem cell-derived exosomes in cancer immunotherapy and their prospective applications in cell-free therapies in future translational medicine is discussed.

关键词： Stem cells Exosomes MicroRNAs Fibroblasts Stroma Tumor microenvironment Angiogenesis Tissue repair Transplantation Immunotherapy

Deep Learning ResNet101 Deep Features of Portable Chest X-Ray Accurately Classify COVID-19 Lung Infection

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Computers, Materials & Continua 2023年第6期75卷 5213-5228页

作者： Sobia nawaz Sidra Rasheed Wania Sami Lal Hussain Amjad Aldweesh Elsayed Tag eldin Umair ahmad Salaria Mohammad Shahbaz Khan Basic Health Unit Sumra Lodhran59320Pakistan Basic Health Unit 20-G ChishtianBahawalnagar62300Pakistan Doctor’s Hospital Lahore54590Pakistan Department of Computer Science&IT Neelum CampusThe University of Azad Jammu and KashmirAthmuqam13230Azad KashmirPakistan Department of Computer Science&IT King Abdullah CampusThe University of Azad Jammu and KashmirMuzaffarabad13100Azad KashmirPakistan College of Computer science and information technology Shaqra UniversityShaqra15273Saudi Arabia Faculty of Engineering and Technology Future University in EgyptNew Cairo11835Egypt Department of Electrical Engineering University of Azad Jammu and KashmirChehla CampusMuzaffarabad13100Azad KashmirPakistan Department of Electrical Engineering Mirpur University of Science&TechnologyMirpurMuzaffarabad10250Azad KashmirPakistan Children’s National Hospital 111 Michigan AVE NWWashingtonDC20854USA

This study is designed to develop Artificial Intelligence(AI)based analysis tool that could accurately detect COVID-19 lung infections based on portable chest x-rays(CXRs).The frontline physicians and radiologists suffer from grand challenges for COVID-19 pandemic due to the suboptimal image quality and the large volume of *** this study,AI-based analysis tools were developed that can precisely classify COVID-19 lung *** available datasets of COVID-19(N=1525),non-COVID-19 normal(N=1525),viral pneumonia(N=1342)and bacterial pneumonia(N=2521)from the Italian Society of Medical and Interventional Radiology(SIRM),Radiopaedia,The Cancer Imaging Archive(TCIA)and Kaggle repositories were taken.A multi-approach utilizing deep learning ResNet101 with and without hyperparameters optimization was ***,the fea-tures extracted from the average pooling layer of ResNet101 were used as input to machine learning(ML)algorithms,which twice trained the learning *** ResNet101 with optimized parameters yielded improved performance to default *** extracted features from ResNet101 are fed to the k-nearest neighbor(KNN)and support vector machine(SVM)yielded the highest 3-class classification performance of 99.86%and 99.46%,*** results indicate that the proposed approach can be bet-ter utilized for improving the accuracy and diagnostic efficiency of *** proposed deep learning model has the potential to improve further the efficiency of the healthcare systems for proper diagnosis and prognosis of COVID-19 lung infection.

关键词： COVID-19 deep learning(DL) lung infection convolutional neural network(CNN)

Electron flux distributions in photodetachment of HF^- near an interface: Theoretical imaging method study

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Chinese Physics B 2013年第1期22卷 187-190页

作者： Maryam nawaz Awan A. Afaq Centre of Excellence in Solid State Physics University of the Punjab Lahore-54590 Pakistan

The electron flux distributions in the photodetachment of HF- near an interface are studied using a two-center model and the theoretical imaging method. An analytical expression for electron flux distributions is derived, which displays oscillations on an observation plane similar to the recent results published by Wang but in the presence of a static electric field. We also discuss the expressions for soft and hard wall cases in detail. A comparison is made with the previous work. The expression is a more general result, and we can deduce from it the electron flux distributions for the photodetachment of H2 near an interface. Finally, we show that the expression reveals similar results as those in [Chin. Phys. B 19 020306 （2010）] when the wall effect is neglected.

关键词： negative ions two-center model electron flux quantum interference

Early versus delayed necrosectomy in pancreatic necrosis:A population-based cohort study on readmission,healthcare utilization,and in-hospital mortality

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World Journal of Methodology 2024年第3期14卷 55-67页

作者： Hassam Ali Faisal Inayat Vinay Jahagirdar Fouad Jaber Arslan Afzal Pratik Patel Hamza Tahir Muhammad Sajeel Anwar Attiq Ur Rehman Muhammad Sarfraz Ahtshamullah Chaudhry Gul nawaz Dushyant Singh Dahiya Amir H Sohail Muhammad Aziz Division of Gastroenterology and Hepatology East Carolina University Brody School of MedicineGreenvilleNC 27834United States Department of Internal Medicine Allama Iqbal Medical CollegeLahorePunjab 54550Pakistan Department of Internal Medicine University of Missouri-Kansas CityKansas CityMO 64108United States Division of Gastroenterology Mather Hospital and Zucker School of Medicine at Hofstra UniversityPort JeffersonNY 11777United States Department of Internal Medicine Jefferson Einstein HospitalPhiladelphiaPA 19141United States Department of Internal Medicine UHS Wilson Medical CenterJohnson CityNY 13790United States Division of Gastroenterology and Hepatology Geisinger Wyoming Valley Medical CenterWilkes-BarrePA 18711United States Department of Internal Medicine St.Dominic's HospitalJacksonMS 39216United States Division of Gastroenterology Hepatologyand MotilityThe University of Kansas School of MedicineKansas CityKS 66160United States Department of Surgery University of New Mexico School of MedicineAlbuquerqueNM 87106United States Division of Gastroenterology and Hepatology The University of ToledoToledoOH 43606United States

BACKGROUND Acute necrotizing pancreatitis is a severe and life-threatening *** poses a considerable challenge for clinicians due to its complex nature and the high risk of *** minimally invasive and open necrosectomy procedures have been *** advancements in treatment modalities,the optimal timing to perform necrosectomy lacks *** To evaluate the impact of necrosectomy timing on patients with pancreatic necrosis in the United *** A national retrospective cohort study was conducted using the 2016-2019 Nationwide Readmissions *** with non-elective admissions for pancreatic necrosis were *** participants were divided into two groups based on the necrosectomy timing:The early group received intervention within 48 hours,whereas the delayed group underwent the procedure after 48 *** various intervention techniques included endoscopic,percutaneous,or surgical *** major outcomes of interest were 30-day readmission rates,healthcare utilization,and inpatient *** A total of 1309 patients with pancreatic necrosis were *** propensity score matching,349 cases treated with early necrosectomy were matched to 375 controls who received delayed *** early cohort had a 30-day readmission rate of 8.6% compared to 4.8%in the delayed cohort(P=0.040).Early necrosectomy had lower rates of mechanical ventilation(2.9%vs 10.9%,P<0.001),septic shock(8%vs 19.5%,P<0.001),and in-hospital mortality(1.1%vs 4.3%,P=0.01).Patients in the early intervention group incurred lower healthcare costs,with median total charges of $52202 compared to$147418 in the delayed *** in the early cohort also had a relatively shorter median length of stay(6 vs 16 days,P<0.001).The timing of necrosectomy did not significantly influence the risk of 30-day readmission,with a hazard ratio of 0.56(95%confidence interval:0.31-1.02,P=0.06).CONCLUSION Our findings show that

关键词： Acute necrotizing pancreatitis Pancreatic necrosis Early necrosectomy Delayed necrosectomy Readmission,Healthcare costs Mortality

Violence study of healthcare workers and systems in the Caribbean:ViSHWaS-Caribbean study

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World Journal of Methodology 2024年第3期14卷 106-118页

作者： Reshon Hadmon Daniella Myriam Pierre Akshat Banga Jacques W Clerville Hans Mautong Precious Akinsanya Rajat Das Gupta Sama Soliman Tolupe M Hunjah Bamidele A Hunjah Hafeez Hamza Ruman Khurshid Qasba Faisal A nawaz Salim Surani Rahul Kashyap Department of Medicine St.George University School of MedicineGrenada FZ818West Indies Department of Research Global Remote Research Scholar ProgramSt PaulMN 55101United States Department of Public Health Cuny Graduate School of Public Health and Health PolicyNew YorkNY 10027United States Department of Internal Medicine Sawai Man Singh Medical CollegeJaipur 302004India School of Public Health Georgia State UniversityAtlantaGA 30302United States Department of Sociology and Demography School of HealthUniversidad de Especialidades Espiritu SantoSamborondon 092301Ecuador Department of Medicine Holy Name Medical CenterTeaneckNJ 07666United States Department of Epidemiology and Biostatistics University of South CarolinaColumbiaSC 29208United States Department of Medicine Pavlov First State Medical University of St PetersburgSankt-Peterburg 197022Russia Department of Medicine University of SuffolkIpswich IP41QJUnited Kingdom Department of Medicine Unicaf University of ZambiaLusaka 20842Zambia Department of Pharmacy School of PharmacyGirne 99428Cyprus Department of Medicine Sher-i-KashmirInstitute of Medical ScienceSrinagar 190011India Department of Psychiatry Al Amal Psychiatric HospitalEmirates Health ServicesDubaiUnited Arab Emirates Department of Medicine and Pharmacology Texas A and M UniversityCollege StationTX 77843United States Anesthesiology and Critical Care Mayo ClinicRochesterMN 55905United States Department of Research Wellspan HealthYorkPA 17403United States

BACKGROUND Violence against healthcare workers(HCWs)in the Caribbean continues to prevail yet remains *** aim is to determine the cause,traits,and consequences of violence on HCWs in the *** To determine the cause,traits,and consequences of violence on HCWs in the *** This research adopted an online cross-sectional survey approach,spanning over eight weeks(between June 6th and August 9th,2022).The survey was generated using Research Electronic Data Capture forms and followed a snowballing strategy to contact individuals using emails,social media,text messages,*** regression analysis was performed to evaluate the variables that influence violence,including gender,age,years of experience,institution type,and night shift *** The survey was completed by 225 *** comprised 61%.Over 51%of respondents belonged to the 21 to 35 age ***(n=61),Haiti(n=50),and Grenada(n=31)had the most *** HCWs(49%)worked for government academic institutions,followed by community hospitals(23%).Medical students(32%),followed by attending physicians(22%),and others(16%)comprised the most common cadre of *** 39%of the participants reported experiencing violence themselves,and 18%reported violence against colleague(s).Verbal violence(48%),emotional abuse(24%),and physical misconduct(14%)were the most common types of *** 63%of respondents identified patients or their relatives as the most frequent *** logistic regression analyses demonstrated that female gender(OR=2.08;95%CI:1.16-3.76,P=0.014)and higher frequency of night shifts(OR=2.22;95%CI:1.08-4.58,P=0.030)were associated with significantly higher odds of experiencing *** than 50%of HCWs felt less motivated and had decreased job satisfaction post-violent *** A large proportion of HCWS in the Caribbean are exposed to violence,yet the phenomenon remains *** a result,HCWs’job s

关键词： ViSHWaS Healthcare workers Violence Survey Workplace violence Caribbean Cross-sectional study