检索结果-南通市图书馆

Cranial variation in allactagine jerboas(Allactaginae,Dipodidae, Rodentia): a geometric morphometric study

Zoological Research 2021年第2期42卷 182-194页

作者： bader H.Alhajeri Department of Biological Sciences Kuwait UniversitySafat 13060Kuwait

Allactaginae is a subfamily of dipodids consisting of four-and five-toed jerboas(Allactaga, Allactodipus,Orientallactaga, Pygeretmus, Scarturus) found in open habitats of Asia and North Africa. Recent molecular phylogenies have upended our understanding of this group's systematics across taxonomic scales. Here, I used cranial geometric morphometrics to examine variation across 219 specimens of 14 allactagine species(Allactaga major, A. severtzovi, Orientallactaga balikunica, ***, O. sibirica, Pygeretmus platyurus, P. pumilio,P. shitkovi, Scarturus aralychensis, S. euphraticus,S. hotsoni, S. indicus, S. tetradactylus, S. williamsi)in light of their revised taxonomy. Results showed no significant sexual size or shape dimorphism. Species significantly differed in cranial size and shape both overall and as species pairs. Species identity had a strong effect on both cranial size and shape. Only a small part of cranial shape variation was allometric,with no evidence of unique species allometries, and most specimens fit closely to the common allometric regression vector. Allactaga was the largest,followed by Orientallactaga, Scarturus, and finally Pygeretmus. Principal component 1(PC1) separated O. bullata+O. balikunica+S. hotsoni(with inflated bullae along with reduced zygomatic arches and rostra) from A. major+A. severtzovi+O. sibirica(with converse patterns), while PC2 differentiated Orientallactaga(with enlarged cranial bases and rostra along with reduced zygomatic arches and foramina magna) from Scarturus+Pygeretmus(with the opposite patterns). Clustering based on the unweighted pair group method with arithmetic mean(UPGMA) contained the four genera, but S. hotsoni clustered with O. bullata+O. balikunica and *** clustered with A. major+A. severtzovi, likely due to convergence and allometry, respectively.

关键词： Allactaga Cranial morphometrics Five-toed jerboas Orientallactaga Pygeretmus Scarturus

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

The Impact of Blood Transfusion on the Efficiency of Stem Cell Transplants

引用

Case Reports in Clinical Medicine 2024年第8期13卷 328-338页

作者： Amer Saud AL-Humaidan Saleh Saud Almutairi Mohammed Hussain Khubrani Raffah Mahdi Bajudah Waleed Mohammad Alzabidi Mohammed Hafiz Almasabi bader Mohammed Saleh Alhomaid Waad Ali Alshehri Wejdan Saleh Alghamdi Raghad Abdullah Alwthinani Department of Pathology and Laboratory King Abdulaziz Medical City Ministry of National Guard Health Affairs Riyadh Saudi Arabia

Background: While blood product transfusion is essential for managing hematologic deficits in Allogenic Hematopoietic stem cell transplant (AHSCT) recipients, it has risks including infectious disease transmission, alloimmunization, and transfusion reactions. These risks have sparked an ongoing debate regarding the overall impact of transfusions on patient outcomes. Thus, this study aimed to evaluate the impact of Red Blood Cells (RBCs) and/or platelet transfusion on the infection incidence and overall survival in AHSCT patients. Methods: We performed a retrospective analysis of clinical and laboratory data of sixty adult patients with primary malignant hematological disorder who had undergone AHSCT. Participants’ data were categorized into two groups;Group 1 (low transfusion group) consisted of patients receiving 10 units. Quantitative data were expressed as mean ± SD. The t-test of significance and Chi-square (χ2) test were used, with p ≤ 0.05 considered significant. Result: A total of 60 patients’ data was included. In Group 1, out of 30 patients, 13 (43.33%) developed infections. In contrast, Group 2 had 21 (70%) out of 30 patients develop infections. Group 1 had a higher survival rate (57.8%) than Group 2 (transfusion > 10 units) (46.2%) with a chi-square value = 23.56, and p-value Conclusion: The volume of blood product transfusions has a considerable impact on patient outcomes, particularly infection and survival rates. Additional long-term prospective studies and larger randomized controlled trials are needed to strengthen the evidence for determining transfusion protocols for these patients.

关键词： Hematologic Neoplasms Hematopoietic Stem Cell Transplantation Blood Transfusion Survival Rate

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

Is the Songshugou Complex,Qinling Belt,China,an Eclogite Facies Neoproterozoic Ophiolite?

引用

Journal of Earth Science 2019年第3期30卷 460-475页

作者： Thomas bader Lifei Zhang Xiaowei Li Key Laboratory of Orogenic Belts and Crustal Evolution Ministry of Education School of Earth and Space Sciences Peking UniversityBeijing 100871 China State Key Laboratoiy of Geological Processes and Mineral Resources School of Earth Sciences and Resources China University of Geosciences Beijing 100083 China

Ophiolites play a key role in understanding subduction-accretion-collision processes. Herein, we discuss origin and metamorphic evolution of an enigmatic, Neoproterozoic ophiolite candidate—the mafic-ultramafic Songshugou Complex, Qinling belt, China—summarizing published thermobarometr);U/Pb geochronology, and geochemistry and presenting new phase equilibrium modeling. Garnet, rarely preserved in amphibolites of the Songshugou Complex, has prograde zoning and low-pvrope cores |Alm54-71(Grs+And)25-30PrP1-6Sps5-12. It formed at quartz eclogite facies conditions of 1.93-2.54 GPa, 462-542℃. During exhumation, garnet first was mantled by plagioclase-rich coronas at about 0.7-1.2 GPa, 660-710℃. During an isothermal uplift to 0.5-0.8 GPa, these coronas evolved widely into n-shaped aggregates and eventually into whitish ribbons oriented with a steeply southwest dipping mineral stretching lineation. The exhumation into middle-upper crustal levels proceeded till the Late Devonian. The oceanic protoliths of the eclogites were emplaced into continental crust in the Neoproterozoic and dragged into a subduction zone in North Qinling in the Cambrian. The ultramafic rocks of the Songshugou Complex were not subducted with the mafic rocks in a coherent block given the absence of garnet but ubiquitous occurrence of spinel implies a P maximum of ?1.7 GPa. Rather, mafic and ultramafic rocks belonged to downgoing and overriding plate, respectively. They were juxtaposed at 0.8-1.7 GPa at Early Ordovician time.

关键词： Qinling belt Songshugou Complex garnet isopleth thermobarometry eclogite Early Paleozoic

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

Cranial differences in three-toed jerboas(Dipodinae,Dipodidae,Rodentia)according to recent taxonomic revisions

引用

Current Zoology 2023年第4期69卷 475-490页

作者： bader H.Alhajeri Zahraa Hasan Hasan Alhaddad Department of Biological Sciences Kuwait UniversitySafat13060Kuwait

Recent phylogenetic studies amended the taxonomy of three-toed jerboas(subfamily Dipodinae),including raising subspecies to full ***,we use geometric morphometrics to compare scaled-shape differences in dipodine crania while considering their revised *** sampled Dipus deasyi,*** halli,***,Jaculus blanfordi blanfordi,***,***,***,*** gerboa,***,and Stylodipus *** were not sexually *** allometry explained some of the shape variation,for example,reduced braincases in larger *** operational taxonomic unit pairs differed in both size and *** and Stylodipus clustered together based on their cranial *** differed from the aforementioned genera by its larger tympanic bulla,broader braincase,larger infraorbital foramen,along with reduced molars and *** orientalis differed from other Jaculus by its broader face versus reduced cranial *** blanfordi(subgenus Haltomys)resembles members of the subgenus Jaculus more than its consubgener(***).Jaculus loftusi,previously considered a synonym of ***,clearly differed from the latter by its shorter rostrum,smaller infraorbital foramen,and more caudolaterally expanded tympanic *** hirtipes,another recent synonym of ***,resembled *** more in scaled cranial shape than it did *** sagitta halli and *** were indistinguishable,but they clearly differed from ***(recently raised to full species)with the latter having a larger molar row,more inflated tympanic bulla,and shorter,slenderer *** explanations for detected cranial shape differences are considered,including diet and habitat(particularly substrate).

关键词： crania Dipus deasyi Jaculus hirtipes Jaculus loftusi jerboa Stylodipus andrewsi

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

Epidemiology of varicocele

引用

Asian Journal of Andrology 2016年第2期18卷 179-181,J0002页

作者： bader Alsaikhan Khalid Alrabeeah Guila Delouya Armand Zini Division of Urology Department of Surgery McGill University Montreal Quebec Canada Department of Urology College of Medicine King Saud bin Abdulaziz University for Health Sciences Riyadh Kingdom of Saudi Arabia Department of Radiology Research Centre of the University of Montreal Hospital Centre Quebec Canada.

Varicocele is a common problem in reproductive medicine practice. A varicocele is identified in 15% of healthy men and up to 35% of men with primary infertility. The exact pathophysiology of varicoceles is not very well understood, especially regarding its effect on male infertility. We have conducted a systematic review of studies evaluating the epidemiology of varicocele in the general population and in men presenting with infertility. In this article, we have identified some of the factors that can influence the epidemiological aspects of varicoceles. We also recognize that varicocele epidemiology remains incompletely understood, and there is a need for well-designed, large-scale studies to fully define the epidemiological aspects of this condition.

关键词： epidemiology infertility varicocele

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

1.9 Ga eclogite from the Archean-Paleoproterozoic Belomorian Province, Russia

引用

Science Bulletin 2017年第4期62卷 239-241页

作者： Xiaoli Li Huanglu Yu Lifei Zhang Chunjing Wei Thomas bader The Key Laboratory of Orogenic Belts and Crustal Evolution MOE School of Earth and Space Sciences Peking University Beijing 100871 China

The first Archean eclogite was announced from the Salma and Gridino complexes of Belomorian Province(Russia)in Fennoscandian Shield(Fig.1a)[1]that has aroused quite a resonance worldwide from all aspects;the debates on the actual age of the Belomorian eclogites have never stopped ever since and in all there are three scenarios are suggested(1)one time in Mesoarchean,(2)two times in Neoarchean and Paleoproterozoic and(3)one time

关键词：古元古代榴辉岩太古宙俄罗斯 GA 世界范围新太古代

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 Static Condensation Reduced Basis Element Approach for the Reynolds Lubrication Equation

引用

Communications in Computational Physics 2017年第1期21卷 126-148页

作者： Eduard bader Martin A.Grepl Siegfried Müller Aachen Institute for Advanced Study in Computational Engineering Science RWTH Aachen UniversitySchinkelstr.252062 AachenGermany Institut für Geometrie und Praktische Mathematik RWTH Aachen UniversityTemplergraben 5552056 AachenGermany

In this paper,we propose a Static Condensation Reduced Basis Element(SCRBE)approach for the Reynolds Lubrication Equation(RLE).The SCRBEmethod is a computational tool that allows to efficiently analyze parametrized structures which can be decomposed into a large number of similar ***,we extend the methodology to allow for a more general domain decomposition,a typical example being a checkerboard-pattern assembled from similar *** this end,we extend the formulation and associated a posteriori error bound *** motivation comes from the analysis of the pressure distribution in plain journal bearings governed by the ***,the SCRBE approach presented is not limited to bearings and the RLE,but directly extends to other component-based *** show numerical results for plain bearings to demonstrate the validity of the proposed approach.

关键词： Reynolds lubrication equation static condensation domain decomposition model order reduction reduced basis element method a posteriori error estimation

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

Compact 5G Vivaldi Tapered Slot Filtering Antenna with Enhanced Bandwidth

引用

Computers, Materials & Continua 2023年第3期74卷 5983-5999页

作者： Sahar Saleh Mohd Haizal Jamaluddin bader Alali Ayman A.Althuwayb Wireless Communication Centre Universiti Teknologi Malaysia(UTM)Johor BahruJohor81310Malaysia Department of Electronics and Communications Engineering Faculty of EngineeringAden UniversityAden5243Yemen Center forWireless Communications The Institute of ElectronicsCommunications and Information TechnologyQueen’s University BelfastNorthern Ireland Science ParkQueen’s RdQueen’s IslandBelfastNorthern IrelandUK Department of Electrical Engineering College of EngineeringJouf UniversitySakaka72388AljoufKingdom of Saudi Arabia

Compact fifth-generation(5G)low-frequency band filtering antennas(filtennas)with stable directive radiation patterns,improved bandwidth(BW),and gain are designed,fabricated,and tested in this *** proposed filtennas are achieved by combining the predesigned compact 5G(5.975–7.125 GHz)third-order uniform and non-uniform transmission line hairpin bandpass filters(UTL and NTL HPBFs)with the compact ultrawide band Vivaldi tapered slot antenna(UWB VTSA)in one *** objective of this integration is to enhance the performance of 5.975–7.125GHz filtennas which will be suitable for modern mobile communication applications by exploiting the benefits of UWB *** on NTL HPBF,more space is provided to add the direct current(DC)biassing circuits in cognitive radio networks(CRNs)for frequency reconfigurable *** overcome the mismatch between HPBFs and VTSA,detailed parametric studies are *** simulation technology(CST)software is used for the simulation in this *** measured S11 appeared to be<−13 and<−10.54 dB at 5.48–7.73 and 5.9–7.98GHz with peak realized gains of 6.37 and 6.27 dBi,for VTSA with UTL and NTL HPBFs,respectively which outperforms the predesigned *** is carried out by comparing the measured and simulated results.

关键词： Filtering antenna(filtenna) hairpin bandpass filters(HBPFs) vivaldi tapered slot filtering antenna(VTSFA) fifth generation(5G)mobile communication

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

Ca^(2+)signaling in plant responses to abiotic stresses

引用

Journal of Integrative Plant Biology 2022年第2期64卷 287-300页

作者： Qiuyan Dong Lukas Wallrad bader O.Almutairi Jörg Kudla Institute of Plant Biology and Biotechnology WWU MünsterSchlossplatz 7Münster48149 Germany Department of Zoology College of ScienceKing Saud UniversityRiyadhKingdom of Saudi Arabia

Adverse variations of abiotic environmental cues that deviate from an optimal range impose stresses to *** stresses severely impede plant physiology and ***,such stresses dramatically reduce crop yield and negatively impact on ecosystem stability and *** components of abiotic stresses can be,for example,suboptimal temperature and osmotic perturbations,while representative chemical facets of abiotic stresses can be toxic ions or suboptimal nutrient *** sheer complexity of abiotic stresses causes a multitude of diverse components and mechanisms for their sensing and signal ***^(2+),as a versatile second messenger,plays multifaceted roles in almost all abiotic stress responses in that,for a certain abiotic stress,Ca^(2+)is not only reciprocally connected with its perception,but also multifunctionally ensures subsequent signal ***,we will focus on salt/osmotic stress and responses to altered nutrient availability as model cases to detail novel insights into the identity of components that link stress perception to Ca^(2+)signal formation as well as on new insights into mechanisms of Ca^(2+)signal ***,we will deduce emerging conceptual consequences of these novel insights and outline arising avenues of future research on the role of Ca^(2+)signaling in abiotic stress responses in plants.

关键词： abiotic stress calcium signaling nutrient stress salt stress

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

Massive abiotic methane production in eclogite during cold subduction

引用

National Science Review 2023年第1期10卷 143-153页

作者： Lijuan Zhang Lifei Zhang Ming Tang Xiao Wang Renbiao Tao Cheng Xu Thomas bader Ministry of Education Key Laboratory of Orogenic Belts and Crustal Evolution School of Earth and Space SciencesPeking University

Methane（CH4） is a critical but overlooked component in the study of the deep carbon *** CH4produced by serpentinization of ultramafic rocks has received extensive attention,but its formation and flux in mafic rocks during subduction remain poorly ***,we report massive CH4-rich fluid inclusions in well-zoned garnet from eclogites in Western Tianshan,*** characteristics and carbon-hydrogen isotopic compositions confirm the abiotic origin of this *** P-T-fO2-fluid trajectories and Deep Earth Water modeling imply that massive abiotic CH4was generated during cold subduction at depths of 50-120 km,whereas CO2was produced during *** massive production of abiotic CH4in eclogites may result from multiple mechanisms during prograde high pressure-ultrahigh pressure *** flux calculation proposes that abiotic CH4that has been formed in HP-UHP eclogites in cold sub duction zones may represent one of the largest,yet overlooked,sources of abiotic CH4on Earth.

关键词： abiotic CH4 fluid inclusion prograde HP-UHP metamorphism CO2 Western Tianshan

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

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：