检索结果-南通市图书馆

Primate-specific Long Non-coding RNAs and MicroRNAs

在线全文

学校读者我要写书评

暂无评论

Genomics, Proteomics & Bioinformatics 2017年第3期15卷 187-195页

作者： Hassaan Mehboob Awan Abdullah Shah farooq rashid Ge Shan CAS Key Laboratory of Innate Immunity and Chronic Disease CAS Center for Excellence in Molecular Cell ScienceSchool of Life SciencesUniversity of Science and Technology of ChinaHefei 230027China

Non-coding RNAs （ncRNAs） are critical regulators of gene expression in essentially all life forms. Long ncRNAs （IncRNAs） and microRNAs （miRNAs） are two important RNA classes possessing regulatory functions. Up to date, many primate-specific ncRNAs have been identified and investigated. Their expression specificity to primate lineage suggests primate-specific roles. It is thus critical to elucidate the biological significance of primate or even human-specific ncRNAs, and to develop potential ncRNA-based therapeutics. Here, we have summarized the studies regard- ing regulatory roles of some key primate-specific lncRNAs and miRNAs.

关键词： Non-coding RNAPrimate-specific LncRNA MicroRNA Evolution

Effects of hooked-collar on the local scour around a lenticular bridge pier

在线全文

学校读者我要写书评

暂无评论

International Journal of Sediment Research 2023年第1期38卷 1-11页

作者： rashid farooq Amir Hossein Azimi Muhammad Atiq Ur Rehman Tariq Afzal Ahmed Department of Civil Engineering International Islamic University Department of Civil Engineering Lakehead University College of Engineering and Science Victoria University Department of Civil Engineering University of Engineering and Technology James Watt School of Engineering University of Glasgow

This paper presents the results of comprehensive laboratory experiments to investigate the effects of hooked-collar on the scour development around a vertical pier with a lenticular cross section. The flow around the pier was uniform, steady, and under the clear-water condition. The axial scour profiles for cases without and with a lenticular hooked-collar were measured and the effects of hooked-collar dimensions and elevation from the bed were examined. To compute the efficiency of hooked-collar for scour prevention, the results of local scour for a bridge pier without a collar and a bridge pier with a plain collar, without a hooked wall, were used as benchmark data sets. A wide range of hooked-collar geometries such as the ratio of collar width to the pier width, Wc/Wp, ranging from 1.5 to 3.5, the ratio of hooked-collar wall height to the pier width, Hc/Wp, ranging from 0.15 to 0.6, and the ratio of collar elevation to the pier width, Ec/Wp, of-0.5, 0, and 0.5 were tested. The experimental results indicated that the equilibrium scour depth decreased with the ratio of hooked-collar to the pier width when Wcis twice the pier width, Wp. For Wc/Wp> 2, the scour depth was similar to the tests with an infinitely large pier width. In addition, the scour depth consistently reduced as the hooked-collar wall height, Hc, to the pier width, Wp, approached 0.3. The highest scour reduction efficiency was achieved when the hooked-collar being placed on the bed surface. Empirical models were developed for prediction of maximum scour depth near the lenticular bridge pier with a modified collar. The results showed that the volume of scour hole around a lenticular pier increased non-linearly with the maximum scour depth and it was independent of the hooked-collar geometry.

关键词： Local scour Erosion Collar Hooked-collar Lenticular pier Scour countermeasure Steady flow

Length-weight relationship of eleven species of marine catfishes from the northern Arabian Sea coast of Pakistan

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Oceanology and Limnology 2017年第5期35卷 1218-1220页

作者： Noureen farooq Nazia QAMAR Shahnaz rashid Sher Khan PANHWAR Center of Excellence in Marine Biology University of Karachi Sindh Pakistan

This study records length-weight relationships （LWRs） for eleven commercially important marine catfish species of the family Ariidae （sea catfishes） and Plotosidae （eel catfishes） from the northern Arabian Sea coast of Pakistan. The specimens were sampled from December 2014 to November 2015, using bottom trawls with various mesh sizes by commercial vessels. The species were Nemapteryx caelatus, Sciades sona, Arius gagora, Batrachocephalus mino, Neturna thalassina, N. bilineata, Osteogeneiosus militaris, Plicofollis dussumieri, P. tenuispinis, Plotosus limbatus, and P. lineatus. Of the eleven species, two species A. gagora and N. bilineata were recorded for the first time and LWRs for four species A. gagora, N. bilineata, S. sona, and B. mino still have no data in the FishBase database. In addition, new maximum length for each of the three species N. bilineata, O. militaris andB. mino was also found.

关键词： marine catfishes Arridae Plotosidae northern Arabian Sea

Indoleamine 2,3-dioxygenase: As a potential prognostic marker and immunotherapeutic target for hepatocellular carcinoma

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2017年第13期23卷 2286-2293页

作者： Kashif Asghar Asim farooq Bilal Zulfiqar Muhammad Usman rashid Department of Basic Sciences Research Shaukat Khanum Memorial Cancer Hospital and Research Centre Department of Biomedical Engineering and Sciences School of Mechanical and Manufacturing EngineeringNational University of Sciences and Technology Eskitis Institute for Drug Discovery Griffith University

Tumor cells induce an immunosuppressive microen-vironment which leads towards tumor immune escape. Understanding the intricacy of immunomodulation by tumor cells is essential for immunotherapy. Indoleamine 2,3-dioxygenase(IDO) is an immunosuppressive enzyme which mediates tumor immune escape in various cancers including hepatocellular carcinoma(HCC). IDO up-regulation in HCC may lead to recruitment of regulatory T-cells into tumor microenvironment and therefore inhibit local immune responses and promote metastasis. HCC associated fibroblasts stimulate natural killer cells dysfunction through prostaglandin E2 and subsequently IDO promotes favorable condition for tumor metastasis. IDO up-regulation induces immuno-suppression and may enhance the risk of hepatitis C virus and hepatitis B virus induced HCC. Therefore, IDO inhibitors as adjuvant therapeutic agents may have clinical implications in HCC. This review proposes future prospects of IDO not only as a therapeutic target but also as a prognostic marker for HCC.

关键词： Hepatocellular carcinoma Hepatitis C virus Hepatitis B virus Indoleamine 2,3-dioxygenase

Phytoecological evaluation with detail floristic appraisal of the vegetation arround Malam Jabba,Swat,Pakistan

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

Asian Pacific Journal of Tropical Biomedicine 2011年第6期1卷 461-467页

作者： Abdur rashid Mohammad farooq Swati Hassan Sher Mohammad N Al-Yemeni Department of Botany University of Peshawar Department of Botany&Biodiversity Conservation University of Swat Department of Botany&Microbiology King Saud University

Objective:To determine the present status of plant communities and their possible association with the habitat in Malam Jabba,Swat,***:A study on the phytoecology was conducted in various ecologically important sites of Malam Jabba,Swat,Pakistan from 2002 to *** altitude of these sites ranged from 1200 m to.1200 *** method was used for evaluation of plants communities and the data on these attributes was converted to relative values. The plant communities were named after 3 leading species with highest importance values. Biological spectrum of the flora based on the life form was prepared by following Raunkiar's life form ***:The floristic composition and structure of the study area were found to be 200 species belonging to 75 ***,Lamiaceae and Poaceae were important families in the study *** biological spectrum showed that therophytic and hemicrytophytic life form and micro-nonophyllous leaf sizes were dominant in the *** air and soil temperatures were decreasing with increasing *** the air and soil temperatures were relatively higher in south slopes than on the northeast *** vegetation analysis of the area indicated eleven plant communities around the *** present vegetation is the relics of moist temperate coniferous forest in the *** communities reflect highly deteriorated conditions. Both the structure and composition of the surrounding vegetation were associated with the types of ***:The conservation of the remaining populations of the reported communities will be best achieved by proper time of sustainable *** is only possible with the participation of local communities.

关键词： Plant communities Altitudinal variation Conservation Slopes Biological spectrum Climatic conditions Phytoecological evaluation Vegetation Floristic appraisal Phytoecology Composition

METRICALLY REGULAR MAPPING AND ITS UTILIZATION TO CONVERGENCE ANALYSIS OF A RESTRICTED INEXACT NEWTON-TYPE METHOD

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

Journal of Computational Mathematics 2022年第1期40卷 44-69页

作者： Mohammed Harunor rashid Institute of Computational Mathematics and Scientific/Engineering Computing Academy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190China Department of Mathematics Faculty of ScienceUniversity of RajshahiRajshahi-6205Bangladesh

In the present paper,we study the restricted inexact Newton-type method for solving the generalized equation 0∈f(x)+F(x),where X and Y are Banach spaces,f:X→Y is a Frechet differentiable function and F:X■Y is a set-valued mapping with closed *** establish the convergence criteria of the restricted inexact Newton-type method,which guarantees the existence of any sequence generated by this method and show this generated sequence is convergent linearly and quadratically according to the particular assumptions on the Frechet derivative of ***,we obtain semilocal and local convergence results of restricted inexact Newton-type method for solving the above generalized equation when the Frechet derivative of f is continuous and Lipschitz continuous as well as f+F is metrically *** application of this method to variational inequality is *** addition,a numerical experiment is given which illustrates the theoretical result.

关键词： Generalized equation Restricted inexact Newton-type method Metrically regular mapping Partial Lipschitz-like mapping Semilocal convergence.

Wave propagation in parallel-plate waveguides filled with nonlinear left-handed material

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

Chinese Physics B 2011年第1期20卷 346-351页

作者： Burhan Zamir rashid Ali Department of Physics University of the PunjabQuaid-i-Azam CampusLahore-54590Pakistan

A theoretical investigation of field components for transverse electric mode in the parallel-plate waveguides has been studied. In this analysis two different types of waveguide structures have been discussed, i.e., （a） normal good/perfect conducting parallel-plate waveguide filled with nonlinear left-handed material and （b） high-temperature-superconducting parallel-plate waveguide filled with nonlinear left-handed material. The dispersion relations of transverse electric mode have also been discussed for these two types of waveguide structures.

关键词： waveguides wave propagation left-handed materials

Rice plant growth and yield: foliar application of plasma activated water

在线全文

学校读者我要写书评

暂无评论

Plasma Science and Technology 2021年第7期23卷 134-143页

作者： M M rashid Mamunur rashid M M HASAN M R TALUKDER Plasma Science and Technology Lab Department of Electrical and Electronic EngineeringUniversity of RajshahiRajshahi 6205Bangladesh Plant Pathology and Mycology Lab Department of BotanyUniversity of RajshahiRajshahi 6205Bangladesh Plant Pathology Lab Department of Agronomy and Agricultural ExtensionUniversity of RajshahiRajshahi 6205Bangladesh

Plasma activated water(PAW)was prepared for 10 min to be applied one toﬁve times as a foliar spray to rice plants,to investigate plant growth,yield and the concentrations of total soluble protein and sugar in the rice grains *** results reveal that(1)the plant height,stem diameter,dry weight,chlorophyll and total carotene concentrations were improved by∼15%,∼25%,∼24%,∼47%and∼45%,respectively,with respect to control,(2)defense mechanisms of the plants treated with PAW were improved,(3)concentrations of total soluble protein and sugar were enhanced in the rice grains of PAW treated plants and(4)yield was increased by∼14%.

关键词： plasma agriculture plasma activated water rice plant growth rice yield total soluble protein

Resilience Analysis and Cascading Failure Modeling of Power Systems Under Extreme Temperatures

在线全文

学校读者我要写书评

暂无评论

Journal of Modern Power Systems and Clean Energy 2021年第6期9卷 1446-1457页

作者： Seyyed rashid Khazeiynasab Junjian Qi IEEE Department of Electrical and Computer Engineering University of Central Florida

In this paper, we propose an AC power flow based cascading failure model that explicitly considers external weather conditions, extreme temperatures in particular, and evaluates the impact of extreme temperature on the initiation and propagation of cascading blackouts. Based on this model, resilience analysis of the power system is performed with extreme temperatures. Specifically, the changes of load and dynamic line rating are modeled due to temperature disturbance. The probabilities for transmission line and generator outages are evaluated, and the timing for each type of events is calculated to decide the actual event sequence. It should be emphasized that the correlated events, in the advent of external temperature changes, could contribute to voltage instability. Besides, we model undervoltage load shedding and operator re-dispatch as control strategies for preventing the propagation of cascading failures. The effectiveness of the proposed model is verified by simulation results on the RTS-96 3-area system. It is found that temperature disturbances can lead to correlated load change and line/generator tripping, which will greatly increase the risk of cascading and voltage instability. Critical temperature change, critical area with temperature disturbance, the identification of most vulnerable buses, and the comparison of different control strategies are also investigated.

关键词： Blackout cascading failure correlation extreme temperature extreme weather power transmission reliability resilience voltage stability