检索结果-南通市图书馆

Journal of Life Sciences 2013年第9期7卷 928-934页

作者： Trisonthi Piyapat Miyagawa kana Tamura Hirotoshi United Graduate School of Agricultural Sciences Ehime University Ehime 790-8566 Japan Department of Applied Biological Science Faculty of Agriculture Kagawa University Kagawa 761-0795 Japan

Anticancer activity in vitro ofLitsea cubeba fruit extracts was investigated, focusing on the fruit residue from essential oil extraction. The methanol extract was fractionated by an Amberlite XAD-7 column. Cell viability, cell proliferation and cell death were determined using conversion of WST-8, BrdU incorporation and measurement of released LDH, respectively. Activation of caspase-3/-7 was detected using Z-DEVD-R substrate and morphological characteristics of apoptotic cells were revealed by DAPI staining. It was found that 80-100% methanol fractions （RME-4B, -5A, -5B and -5C） were effective against HeLa cell viability and also promoted cell death. RME-SA and -5B were highly effective in suppressing DNA replication （IC50 4.89 and 3.26 g/mL at 48 h） and also in activation of caspase-3/-7 （9 and 17 times of untreated population at 12 h）. The presence of apoptotic bodies was clearly observed. The results of this study suggested that L. cubeba fruit residue has remarkable apoptosis induction potential for further use in cancer drug research and for waste management in the essential oil industry.

关键词： Litsea cubeba lauraceae apoptosis caspase-3/-7 HeLa cell

A Modified Multi-Agent System for Simple Assembly Line Balancing

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 Mathematics and System Science 2012年第5期2卷 299-314页

作者： kana Yokoyama Katsumi Morikawa Katsuhiko Takahashi Graduate School of Engineering Hiroshima University Higashi-Hiroshima 739-8527 Japan

In this paper, a modified multi-agent system for assembly line balancing is proposed. Each worker in the assembly line is regarded as an agent, and two neighboring agents exchange information about the allocated tasks. To balance the workload, an agent with a smaller workload sends a request message to his/her neighboring agent, who has a larger workload, to exchange tasks between them. Without any centralized control mechanism, each agent behaves to achieve their goal, which is to balance the workload. A tabu list and cooling control are also incorporated. However, the effectiveness of the previous system is limited, and the system depends on problems to be solved. As such, a modified system is proposed. In the proposed system, the cycle time is used when considering the proposal of exchange of allocated tasks instead of the task time allocated to the neighboring workers. Also, in the proposed system, the length of tabu list is determined dynamically based on the current number of possible exchanges, and the best cycle time in the search with cooling at medium speed is recorded for the second search that is finished when the current cycle time reaches the recorded cycle time. The effectiveness of the modified system is investigated by solving problems for various conditions. The results show that the proposed system is effective regardless of the problems that are encountered.

关键词： Assembly line balancing multi-agent system tabu search.

Allergic reaction to anisakis-contaminated fish after the first administration of BNT162b2 mRNA vaccine:a case report

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Gastroenterology Report 2022年第1期10卷 650-652页

作者： Fumiue Harada kana Yamamoto Tomoki Matsuda Chika Yamamoto Yuta Tani Mutsuko Ohnishi Morihito Takita Tetsuya Tanimoto Masahiro Kami Ryusaburo Shineha Department of Internal Medicine Soma Central HospitalSomaFukushimaJapan Department of Disaster and Comprehensive Medicine Fukushima Medical UniversityFukushimaFukushimaJapan Department of Radiation Health Management Fukushima Medical UniversityFukushimaFukushimaJapan Research Division Medical Governance Research InstituteMinatoTokyoJapan

Introduction SARS-CoV-2 vaccination is an effective means to prevent severe illness and death due to SARS-CoV-2 infection[1].Vaccine safety has been carefully monitored to be sure that the benefit outweighs the risk of adverse events(AEs).Common AEs of the BNT162b2 mRNA vaccine,for example,include fatigue(45%),headache(40%),and chills(28%)after the first administration in accordance with the adult phase Ⅲ clinical trial[1].

关键词： headache death administration

Pilot Study to Examine Radial Variation in Annual Ring Width, Density and Shrinkage

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 Forestry Science and Technology 2003年第4期2卷 25-30页

作者： URAKAMI Hiroyuki HIRAKAWA Yasuhiko YAMASHITA kana Research Institute of Wood Industry Chinese Academy of Forestry Beijing 100091 ChinaForestry and Forest Products Research Institute JapanForestry and Forest Products Research Institute Japan

The annual ring width, density and shrinkage variation from pith to bark in Chinese fir (Cunninghamia lanceolata) and Boka sugi (Cryptomeria japonicd) were studied and compared. The results show that the ring width decreased sharply from pith to bark for Chinese fir. However, the ring width variation pattern for Boka sugi followed a different way, i.e., the ring width decreased to the fifth ring, increased to the tenth ring, decreased again to the fifteenth, and then increased to the twentieth, where it...

关键词： plantation wood annual ring width density variation shrinkage characteristics Chinese fir Boka sugi

Optical, Photophysical, Stability and Mirrorless Lasing Properties of Novel Fluorescein Derivative Dye in Solution

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

Open Journal of Applied Sciences 2012年第4期2卷 228-235页

作者： Maram T. H. Abou-kana National Institute of Laser Enhanced Sciences Cairo University Giza Egypt

Novel laser dye, allyl 2-(6-(allyloxy)-3-oxo-3H-xanthen-9-yl) benzoate [diallyl-fluorescein] has been synthesized. Its chemical structure was confirmed by 1HNMR, IR, MS and elemental analysis. Its optical properties were experimentally investigated. The amplified spontaneous emission (ASE) efficiency was 0.29% in case of new dye while it was 0.23% in case of fluorescein by pumping the dye samples with a 532 nm (7 ns) pulsed Nd:YAG laser. Also, the thermal and photostability techniques confirmed the higher stability of new laser dye.

关键词： Laser Dye Optical Properties Amplified Spontaneous Emission Thermal Stability Photostability Property

Development and Evaluation of Disease Management Program and Service Framework for Patients with Chronic Disease

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Health 2015年第6期7卷 729-740页

作者： kana Kazawa Kiminori Yamane Noriaki Yorioka Michiko Moriyama Division of Nursing Science Institute of Biomedical and Health Sciences Hiroshima University Hiroshima Japan Chugoku Health Administration Center Nippon Telegraph and Telephone West Corporation Hiroshima Japan Hiroshima Kidney Organization Hiroshima Japan

We developed a disease management program and service framework to enhance the self-management skills of patients with chronic diseases for the first time in Japan. In this study, we analyzed the efficacy of this program. A single-group pre-test and post-test design was used. In the program, disease management nurses provided self-management education to patients that were specific for their disease and risk factors in cooperation with their primary physicians. The duration of the program was 6 or 12 months. A total of 1258 patients were enrolled. After excluding discontinued subjects, 987 patients in the diabetes program and 11 patients (except those with diabetic nephropathy) in the chronic kidney disease (CKD) program were analyzed. The diabetic patients showed improvement of HbA1c and blood pressure after intervention, as well as maintaining renal function. CKD patients showed no change of renal function after intervention, but there was improvement of non high density lipoprotein-cholesterol (HDL-c). The patients acquired the ability to detect at an early stage and respond to abnormal symptoms and data, which enabled them to avoid progression of their diseases and emergency hospitalization. The program was effective at preventing disease progression in patients with chronic illnesses and may contribute to the containment of medical costs.

关键词： Disease Management Patient Education Chronic Disease

Pattern of Growth and Dry Matter Accumulation in Some Improved Cowpea Varieties (<i>Vigna unguiculata</i>) Exposed to Alpha Nano Spin

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Nanoparticles 2021年第2期10卷 51-65页

作者： Hauwa Ahmad kana Emmanuel Enock Goler Peter Barka Mshemlbula Nanobiotechnology Research Group Department of Botany Faculty of Science Federal University of Lafia Lafia Nigeria

Ten (10) cowpea varieties exposed to alpha nano spin were evaluated during the 2019 cropping season to access the role of alpha nano spin in their growth and dry matter accumulation at the Botanical garden of Federal University, Lafia. A Randomized Complete Block Design (RCBD) with four replications was used. The fourth replication was used for the destructive sampling over time. The seed was exposed to alpha nano spin before planting at 0, 20, 40 and 60 minutes respectively. Results of the study showed that the varieties differed significantly with respect to morphological traits studied (P s such as vine length, number of leaves and above ground stems were significantly influenced by alpha nano spin bombardment. 40 mins alpha nano spin resulted in maximum accumulation of dry matter, leaf area and leaf area index. The traits evaluated were stable under alpha nano spin exposure, suggesting that they could be useful indices in creating genetic variability in each of the varieties.

关键词： Alpha Nano Spin Cowpea Varieties Growth and Dry Matter Accumulation

Culture Filtrates of Trichoderma Isolate H921 Inhibit Magnaporthe oryzae Spore Germination and Blast Lesion Formation in Rice

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Microbiology 2016年第7期6卷 521-527页

作者： Quyet Thi Nguyen kana Ueda Junichi Kihara Makoto Ueno Laboratory of Plant Pathology Faculty of Life and Environmental Science Shimane University Matsue Japan

Spore germination and appressorium formation of Magnaporthe oryzae spores was completely suppressed by an ethyl acetate extract of the culture filtrate from the H921 isolate (H921-EAE-CF). Production of antifungal substance(s) in the H921-EAE-CF began to increase up to 3 days after isolate H921 incubation. Furthermore, heat treatment (105°C or 121°C) of H921-EAE-CF did not alter its inhibitory effect on M. oryzae spore germination compared to non-heat-treated H921-EAE-CF. Blast lesion formation inhibition by H921-EAE-CF was dose-dependent. Internal transcribed spacer (ITS) region sequence analysis indicated that this isolate shared similarities with species of the genera Trichoderma. This study suggests that H921-EAE-CF contains some antifungal substances that could be promising candidates for control of rice blast disease.

关键词： Culture Filtrate Magnaporthe oryzae Trichoderma sp. Rice

Antisalmonellal and antioxidant potential of hydroethanolic extract of Canarium schweinfurthii Engl.(Burseraceae) in Salmonella enterica serovar Typhimurium-infected chicks

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 2019年第11期9卷 474-483页

作者： Jean Baptiste Sokoudjou Siméon Pierre Chegaing Fodouop Flavie Gaelle Djoueudam Norbert Kodjio JeanRaphael kana Alain Bertrand Fowa Gabriel Tchuente Kamsu Donatien Gatsing Microbiology and Antimicrobial Substances Research Unit Faculty of ScienceUniversity of DschangCameroon Department of Biomedical Sciences University of NgaoundéréCameroon Animal Production and Nutrition Research Unit Faculty of Agronomy and Agricultural SciencesUniversity of DschangCameroon

Objective:To evaluate the anti-infectious and antioxidant activities of hydroethanolic extract of Canarium schweinfurthii on broiler chickens infected by Salmonella enterica serovar Typhimurium,known to be threatening public ***:Animals were divided into six groups of eight animals per group:the normal control group,negative control group,positive control group and three test groups receiving the plant extract at 5,19 and 75 mg/kg bw,*** evolution of the disease as well as the effectiveness of the treatment were monitored by stool culture from the second day post infection until the end of the *** addition,the effects of treatment on growth performances and feed conversion efficiency of broilers were *** the assessment of antioxidant status,enzymatic and non-enzymatic biomarkers such as catalase,glutathione peroxidase,malondialdehyde and nitric oxide were evaluated in the serum and tissues of ***:The infected chickens treated with oxytetracycline recovered on day 7 after treatment,while animals treated with 19 and 75 mg/kg of Canarium schweinfurthii extract recovered on day 9 and those with 5 mg/kg of the extract on day *** infection caused a decrease on catalase and glutathione peroxidase activities;the administration of various doses of Canarium schweinfurthii extract increased these enzymatic *** receiving the extract at 5 mg/kg showed a significant increase in catalase activity in serum,heart and lungs while all concentrations of the extract significantly increased glutathione peroxidase activity in the serum,liver and *** non-enzymatic biomarkers,Salmonella infection caused a significant increase of nitric oxide and malondialdehyde concentration in the liver and *** with 75 mg/kg of the extract significantly reduced nitric oxide concentration in the heart and lungs while each dose of the extract reduced and normalized the malondialdehyde level in the serum.A

关键词： Avian salmonellosis Antisalmonellal efficacy Canarium schweinfurthii Salmonella Typhimurium Antioxidant activity

High-mobility induced high-performance self-powered ultraviolet photodetector based on single ZnO microwire/PEDOT:PSS heterojunction via slight ga-doping

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 Materials Science & Technology 2021年第34期93卷 33-40页

作者： Peng Wan Mingming Jiang Tong Xu Yang Liu Caixia Kan College of Science MIIT Key Laboratory of Aerospace Information Materials and PhysicsKey Laboratory for Intelligent Nano Materials and DevicesNanjing University of Aeronautics and AstronauticsNo.29 Jiangjun RoadNanjing 211106P.R.China

Semiconductor micro/nanostructures with broad bandgap can provide powerful candidates for fabricating ultraviolet photodetectors(PDs)due to their proper bandgap,unique optoelectronic properties,large surface-to-volume ratio and good ***,semiconducting micro/nanostructures suffer from low electron conductivity and abundant surface defects,which greatly limits their practical application in developing *** this work,an ultraviolet PD consisting of single Ga-doped ZnO microwire(ZnO:Ga MW)and p-type poly(3,4 ethylenedioxythiophene):poly(styrenesulfonate)(PEDOT:PSS)was *** exposed to ultraviolet illumination,the PD exhibits excellent performance(responsivity~185 m A/W,detectivity~2.4×10^(11) Jones,and fast response speed of~212μs for rise time and~387μs for decay time)under self-driven *** with that of an undoped Zn O MWbased PD,the responsivity and detectivity of ZnO:Ga MW/PEDOT:PSS PD are significantly enhanced over 400%and 600%,*** to the incorporation of Ga element,the charge transport properties of a ZnO:Ga MW,specifically for the mobility,are effectively enhanced,which can substantially facilitate the generation,separation,transport and harvest efficiency of photo-generated carriers in the asfabricated ***,the Ga-incorporation improves the crystalline quality of MWs and reduces surface state density,further suggesting a high-quality ZnO:Ga MW/PEDOT:PSS *** work provides a potential approach for designing high-performance self-powered ultraviolet PDs from the aspect of enhancing carrier transport through fine doping.

关键词： UV Photodetectors Self-powered Mobility High performance Microwire