检索结果-南通市图书馆

Pressure ulcers and acute risk factors in individuals with traumatic spinal fractures with or without spinal cord injuries:A prospective analysis of the National Spinal Column/Cord Injury Registry of Iran(NSCIR-IR)data

引用

Chinese Journal of Traumatology 2023年第4期26卷 193-198页

作者： Farzin Farahbakhsh hossein rezaei aliabadi Vali Baigi Zahra Ghodsi Mohammad Dashtkoohi Ahmad Pour-Rashid James SHarrop Vafa Rahimi-Movaghar Sina and Trauma Surgery Research Center Tehran University of Medical SciencesTehranIran Brain and SpinalCord Injury Research Center NeuroscienceInstute Tehran Universityof Medical SciencesTehranIran Department of Neurosurgery Shariati HospitalTehran University of Medical SciencesTehranIran Sports Medicine Research Center Tehran University of Medical SciencesTehranIran School of Medicine Bam University of Medical SciencesBamIran Students'Scientific Research Center(SSRC) Tehran University of Medical SciencesTehranIran Department of Neurosurgery Sina HospitalTehran University of Medical SciencesTehranIran Department of Neurosurgery Thomas Jefferson UniversityPhiladelphiaUSA Universal Scientific Education and Research Network(USERN) TehranIran Institute of Biochemistry and Biophysics University of TehranTehranIran Spine Program University of TorontoTorontoCanada

Purpose:To identify risk factors for developing pressure ulcers(PUs)in the acute care period of traumatic spinal fracture patients with or without spinal cord injuries(SCIs).Methods:Data were collected prospectively in participating the National Spinal column/Cord Injury Registry of Iran(NSCIR-IR)from individuals with traumatic spinal fractures with or without SCIs,in-clusive of the hospital stay from admission to *** nursing staff examined the patients for the presence of PUs every 8 h during their hospital *** presence and grade of PUs were assessed according to the European Pressure Ulcer Advisory Panel *** addition to PU,following data were also extracted from the NSCIR-IR datasets during the period of 2015-2021:age,sex,Glasgow coma scale score at admission,having SCIs,marital status,surgery for a spinal fracture,American Spinal Injury Association impairment scale(AIS),urinary incontinence,level of education,admitted center,length of stay in the intensive care unit(ICU),hypertension,respiratory diseases,consumption of ciga-rettes,diabetes mellitus and length of stay in the *** regression models were used to es-timate the unadjusted and adjusted odds ratio(OR)with 95%confidence intervals(CI).Results:Altogether 2785 participants with traumatic spinal fractures were *** them,87(3.1%)developed PU during their hospital stay and 392(14.1%)had *** the SCI population,63(16.1%)developed PU during hospital *** logistic regression for the whole sample showed that marital status,having SCIs,urinary incontinence,level of education,treating center,number of days in the ICU,age,and Glasgow coma scale score were significant predictors for ***,further analysis by multiple logistic regression only revealed the significant risk factors to be the treating center,marital status,having SCIs,and the number of days in the *** the subgroup of individuals with SCIs,marital status,AIS,urinary incontinenc

关键词： Spinal fractures Spinal cord injuries Pressureulcer NSCIR-IR

来源：

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

Comprehensive analysis of the role of ubiquitin-specific peptidases in colorectal cancer:A systematic review

引用

World Journal of Gastrointestinal Oncology 2024年第1期16卷 197-213页

作者： Eman Al-Balushi Amina Al Marzouqi Shima Tavoosi Amir hossein Baghsheikhi Arash Sadri Leyla Sharifi aliabadi Mohammad-Mahdi Salarabedi Syed Azizur Rahman Nabeel Al-Yateem Alireza Mosavi Jarrahi Aram Halimi Mohammad Ahmadvand Wael M Abdel-Rahman College of Health Sciences University of SharjahSharjah 27272United Arab Emirates Department of Biology Faculty of SciencesUniversity of IsfahanIsfahan 81746-73441Iran Department of Biology Science and Research BranchIslamic Azad UniversityTehran 11365/4435Iran Students’Scientific Research Center Tehran University of Medical SciencesTehran ***Iran Cell Therapy and Hematopoietic Stem Cell Transplantation Research Center Research Institute for OncologyHematologyand Cell TherapyTehran University of Medical SciencesTehran ***Iran Student Research Committee School of MedicineShahid Beheshti University of Medical SciencesTehran ***Iran Department of Nursing University of SharjahSharjah 27272United Arab Emirates Cancer Research Centre Shahid Beheshti University of Medical SciencesTehran ***Iran Department of Medical Laboratory Sciences University of SharjahSharjah 27272United Arab Emirates

BACKGROUND Colorectal cancer(CRC)is the third most frequent and the second most fatal *** search for more effective drugs to treat this disease is ongoing.A better understanding of the mechanisms of CRC development and progression may reveal new therapeutic ***-specific peptidases(USPs),the largest group of the deubiquitinase protein family,have long been implicated in various *** have been numerous studies on the role of USPs in CRC;however,a comprehensive view of this role is *** To provide a systematic review of the studies investigating the roles and functions of USPs in *** We systematically queried the MEDLINE(via PubMed),Scopus,and Web of Science *** Our study highlights the pivotal role of various USPs in several processes implicated in CRC:Regulation of the cell cycle,apoptosis,cancer stemness,epithelial–mesenchymal transition,metastasis,DNA repair,and drug *** findings of this study suggest that USPs have great potential as drug targets and noninvasive biomarkers in *** dysregulation of USPs in CRC contributes to drug resistance through multiple *** Targeting specific USPs involved in drug resistance pathways could provide a novel therapeutic strategy for overcoming resistance to current treatment regimens in CRC.

关键词： Ubiquitin-specific peptidases Colorectal cancer Deubiquitinase protein family Drug target discovery Biomarker discovery

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The effects of strong magnetic fields on neutron star structure:lowest order constrained variational calculations

引用

Research in Astronomy and Astrophysics 2013年第2期13卷 197-206页

作者： Gholam hossein Bordbar Zeinab rezaei Department of Physics Shiraz University Center for Excellence in Astronomy and Astrophysics(CEAA-RIAAM)-Maragha

We investigate the effects of strong magnetic fields upon the large-scale properties of neutron and protoneutron stars. In our calculations, the neutron star mat- ter was approximated by pure neutron matter. Using the lowest order constrained vari- ational approach at zero and finite temperatures, and employing AV18 potential, we present the effects of strong magnetic fields on the gravitational mass, radius, and gravitational redshift of neutron and protoneutron stars. It is found that the equation of state for a neutron star becomes stiffer with an increase of magnetic field and tem- perature. This leads to larger values of the maximum mass and radius for the neutron stars.

关键词： dense matter -- equation of state -- stars magnetic fields -- stars fundamental parameters (masses, radii, temperatures)

来源：

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

A two-stage DEA model to evaluate sustainability and energy efficiency of tomato production

引用

Information Processing in Agriculture 2017年第4期4卷 342-350页

作者： hossein Raheli Rassul Mohammad rezaei Mehri Raei Jadidi Hassan Ghasemi Mobtaker Department of Agricultural Economics Faculty of AgricultureUniversity of TabrizTabrizIran Department of Biosystems Engineering Faculty of AgricultureUniversity of TabrizTabrizIran

The aims of this study were to evaluate the sustainability and efficiency of tomato production and to investigate the determinants of inefficiency of tomato farming in Marand region of East Azerbaijan province,*** these purposes,a two-stage methodology was applied,in which for the first time a fractional regression model(FRM)was employed in the second stage of analysis,so that,in the first stage a nonparametric Data Envelopment Analysis(DEA)was used to analyze the efficiencies of tomato production and in the second stage,farm specific variables such as education level,farmers’age,total land size and use of manure were used in a fractional regression model to explain how these factors influenced efficiency of tomato *** results of the first stage showed that there are considerable differences between efficient and inefficient farmers in the studied area,so that the main differences were in the use of chemical fertilizers,biocides and water for ***,the results of second stage revealed that farmers’age,education level and total land size positively affected efficiency in tomato ***,better use of land,chemical fertilizers,water for irrigation and improving the farmers’educational levels through literacy campaign and land consolidation would probably increase the efficiency in the long term.

关键词： Data envelopment analysis Energy efficiency Fractional regression model Tomato

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Application of Rice Husk Biochar for Achieving Sustainable Agriculture and Environment

引用

Rice science 2021年第4期28卷 325-343页

作者： hossein Asadi Mohammad Ghorbani Mehran rezaei-Rashti Sepideh Abrishamkesh Elnaz Amirahmadi Chen Chengrong Manouchehr Gorji Soil Science Department University of TehranKarajIran Soil Science Department University of GuilanRashtIran Griffith School of Environment and Science Australian Rivers InstituteGriffith UniversityBrisbaneQLDAustralia Department of Forest Ecology Sari Agricultural Sciences and Natural Resources UniversityIran

This paper critically reviewed the current knowledge and challenges of rice husk biochar(RHB)production and its effects on soil properties,plant growth,immobilization of heavy metals,reduction of nutrient leaching and mitigation of greenhouse gas *** characteristics of RHBs produced at various pyrolysis temperatures were discussed and compared to biochars derived from other agro-industrial *** produced at higher pyrolysis temperatures show lower hydrogen/carbon ratio,which suggests the presence of higher aromatic carbon *** increase of pyrolysis temperature also results in production of RHBs with higher ash content,lower yield and higher surface *** usually has higher silicon and ash contents and lower carbon content compared to biochars derived from other feedstocks at the same pyrolysis *** it depends on soil type,RHB application can improve soil organic carbon content,cation exchange capacity,available K concentration,bulk density and microbial *** effect of RHB on soil aggregation mainly depends on soil *** growth of different crops is also enhanced by application of *** addition to soil can immobilize heavy metals and herbicides and reduce their *** application shows a significant capacity in reduction of nitrate leaching,although its magnitude depends on the biochar application rate and soil biogeochemical *** of RHB,especially in paddy fields,shows a promising mitigation effect on greenhouse gas(CH4,CO2 and N2O)*** RHB characteristics are also related to other factors such as pyrolysis heating rate and residence time,its performance for specific applications(*** sequestration,pH amendment)can be manipulated by adjusting the pyrolysis *** research is needed on long-term field applications of RHB to fully understand the advantages and disadvantages of RHB as a soil amendment.

关键词： carbon sequestration crop production greenhouse gas heavy metal nitrogen leaching soil amendment rice husk biochar

来源：

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

Bearing capacity of thin-walled shallow foundations： an experimental and artificial intelligence-based study

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2016年第4期17卷 273-285页

作者： hossein rezaei Ramli NAZIR Ehsan MOMENI Faculty of Engineering Lorestan University Khorram A bad 68151-44316 Iran Department of Geotechnics and Transportation Faculty of Civil Engineering Universiti Teknologi Malaysia Johor 81310 Malaysia

Thin-walled spread foundations are used in coastal projects where the soil strength is relatively low. Developing a predictive model of bearing capacity for this kind of foundation is of interest due to the fact that the famous bearing capacity equations are proposed for conventional footings. Many studies underlined the applicability of artificial neural networks （ANNs） in predicting the bearing capacity of foundations. However, the majority of these models are built using conventional ANNs, which suffer from slow rate of learning as well as getting trapped in local minima. Moreover, they are mainly developed for conventional footings. The prime objective of this study is to propose an improved ANN-based predictive model of bearing capacity for thin-walled shallow foundations. In this regard, a relatively large dataset comprising 145 recorded cases of related footing load tests was compiled from the literature. The dataset includes bearing capacity （Qu）, friction angle, unit weight of sand, footing width, and thin-wall length to footing width ratio （Lw/B）. Apart from Qu, other parameters were set as model inputs. To enhance the diversity of the data, four more related laboratory footing load tests were conducted on the Johor Bahru sand, and results were added to the dataset. Experimental findings suggest an almost 0.5 times increase in the bearing capacity in loose and dense sands when LJB is increased from 0.5 to 1.12. Overall, findings show the feasibility of the ANN-based predictive model improved with particle swarm optimization （PSO）. The correlation coefficient was 0.98 for testing data, suggesting that the model serves as a reliable tool in predicting the bearing capacity.

关键词： Thin-walled foundation Sand Bearing capacity Artificial neural network (ANN) Particle swarm optimization (PSO)

来源：

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

On P-Regularity of Acts

引用

Advances in Pure Mathematics 2012年第2期2卷 104-108页

作者： Akbar Golchin hossein Mohammadzadeh Parisa rezaei Department of Mathematics University of Sistan and Baluchestan Zahedan Iran

By a regular act we mean an act that all its cyclic subacts are projective. In this paper we introduce P-regularity of acts over monoids and will give a characterization of monoids by this property of their right (Ree... 详细信息

关键词： P-Regularity Rees Factor Act

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Attitude Control of a Quadrotor with Optimized PID Controller

引用

Intelligent Control and Automation 2013年第3期4卷 335-342页

作者： hossein Bolandi Mohammad rezaei Reza Mohsenipour hossein Nemati S. M. Smailzadeh East Tehran (Qiam Dasht) Branch Islamic Azad University Tehran Iran Electrical Engineering Department Iran University of Science and Technology Tehran Iran

A new approach to control, stabilization and disturbance rejection of attitude subsystem of quadrotor is presented in this article. Analytical method is used to tune conventional structure of PID controller. SISO approach is implemented for control structure to achieve desired objectives. The performance of the designed control structure is evaluated through time domain factors such as overshoot, settling time and integral error index, and robustness. A comparison is done between designed controller and back-step controller applied to main model of quadrotor. The results of simulation show the effectiveness of designed control scheme.

关键词： Modeling Optimization PID Control Quadrotor

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Automatic Guidance of an Agricultural Tractor along with the Side Shift Control of the Attached Row Crop Cultivator

引用

Journal of Agricultural Science and Technology(B) 2012年第1期2卷 151-158页

作者： Javad Robati hossein Navid Mahdi rezaei Amir Rikhtehgar Ghiasi Faculty of Agricultural University of Tabriz Tabriz lran Faculty of Mechanical Engineering Sahand University of Technology Tabriz Iran Faculty of Computer and Electrical Engineering University of Tabriz Tabriz Iran

This paper presents the automatic guidance system of an agricultural tractor and the side shift control of the attached row crop cultivator using electro-hydraulic actuators. In order to simulate the dynamic behaviour of the tractor along with the attached cultivator, the modified bicycle model was adopted. Steering angle sensor, fibre optic gyroscope （FOG） and RTK-DGPS technologies are assumed for measurements of the steering angle, yaw rate and the lateral position of the tractor, respectively. The kinematics model was used for the implement. In this study four cascade controllers were designed and simulated for tractor guidance which consists ofPD, PD, P and PID controllers. Other PI and PID controllers also had been designed for implement side shifting purpose. Then, these two systems were combined and the performance of the whole system was evaluated through the simulation results. According to the results tractor reaches the desired path after less than 10 seconds. Simulations showed that the maximum deviation of the tractor from the desired path was about 5 cm within this period. And the cultivator blades would follow the predetermined path with steady state error of about 5 cm too.

关键词： Row crop cultivator yaw rate servo valve servo cylinder cascade controller.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Assessment of dairy products consumed on the Arakmarket as determined by heavy metal residues

引用

Health 2014年第5期6卷 323-327页

作者： Mohammad rezaei Hajar Akbari Dastjerdi Hassan Jafari Ali Farahi Arman Shahabi hossein Javdani hossein Teimoory Mohammad Yahyaei Ali Akbar Malekirad Arak University of Medical Sciences Arak Iran Department of Biology Payame Noor University Tehran Iran Department of Food Safety and Hygiene School of Public Health Tehran University of Medical Sciences (TUMS) Tehran Iran Department of New Sciences and Technologies Life Science Engineering Group University of Tehran Tehran Iran Department of Veterinary School of Veterinary Shahid Bahonar University of Kerman Kerman Iran Soren Tech Toos Laboratory Food & Biotechnology North East Town Toos Industrial Town Mashhad Iran

Dairy products are nutritious drink and can play a significant part in a healthy diet. The safety of dairy products decreases with increasing concentration of toxic compounds and environmental pollutants (especially heavy metals). In the present study, the contamination of Al, Sn, As, Cd, Hg and Pb in dairy products (pasteurized milk, yogurt, yogurt drink, cheese) consumed in Arak, Iran, 2013 was evaluated using inductively coupled plasma mass spectrometry (ICP-SFMS) method. To meet the aim, 60 samples of 5 different brands, consisting of pasteurized milk, yogurt, yogurt drink, cheese (n = 15) were selected and analyzed for heavy metals content. 100% of the samples were positive regarding the total average and range concentration of Al, Sn, As, Cd, Hg and Pb in dairy products was 168.25 ± 92.2 (30.6 - 356.5), 5.9 ± 4 (1.1 - 16), 3.2 ± 1.95 (0.4 - 8.1), 4.55 ± 2.6 (0.6 - 10.6), 23.15 ± 10.4 (6.8 - 50.2) and 15.4 ± 8.53 (3.1 - 40.2) μg/kg, respectively. 28.3% (17 of 60 samples) of dairy products samples had lead (Pb) greater than EU limit and national Iranian standard (20 μg/kg). Statistical analysis indicated except about As in pasteurized milk and cheese there was no significant difference between products in terms of heavy metals content.

关键词： Heavy Metals Milk Cheese Yogurt Food Safety ICP

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：