ゲート制御されたInSb量子井戸とその抵抗検出核磁気共鳴への応用

要約のみTohoku University須藤 彰三課

Role of Investigating Officer (IO) in Criminal Proceeding: Bangladesh Perspective

Investigating officers (IO) play a prodigious role in the criminal justice system, because an investigation report is a very important document in most of the criminal cases, but sometimes it becomes a major obstacle in acquiring justice. Investigating office’s reluctance to appear in the court, false report given by IO or corruption may hinder victim’s access to justice. Investigating officers also face different challenges in case of an investigation and making a report which affects victims’ rights under the criminal justice framework. This paper cited primary bases as well as legislations, rules and regulations; and secondary bases comprising books, journals, law reports, periodicals and other resources from the internet. Consequently, an endeavour has been made to reconnoitre role of IO in the present procedure and practice of criminal investigation in Bangladesh. Specially, the challenges in the practice of investigation in Bangladesh are assessed. A mass of suggestions is also offered with the assumption that the reforms in the criminal justice system should be initiated first at the investigation stage. This article also attempts to disclose the role of IO under criminal proceedings and different obstacles as they face in Bangladesh, which may affect victims in criminal proceedings. Keywords: Investigation, Criminal Proceeding, Police Report, Role of Investigating officer, Justice

Genetic variation among biofortified and late blight tolerant potato (Solanum tuberosum L.) (mini tuber) production in Bangladesh

Biofortified potato could contribute a major role in food security for millions of people. It could help to alleviate worldwide micronutrient malnutrition. An experiment was carried out during 2019-2020 growing season with 49 accessions following randomized complete block design with three replications in order to evaluate and classify agro-morphological traits in Breeder seed production centre (BSPC), Debiganj, Panchagarh. Eight quantitative characters i.e. germination percent, foliage coverage, stem number per hill, plant height, plant vigor, tuber number per plant, tuber weight per plant, yield per plant were measured. Principal components (PC) analysis showed three components explained 72.16 % of the total variation among traits. The first PC assigned 35.22 % and the second PC assigned 58.47 % of total variation between traits. The first PC was more related to yield per plant and weight of tuber. Forty-nine germplasm was placed on three cluster based on cluster analysis using a hierarchical classification (HCA). All accessions were discriminated and high morphological variation was observed. Thus, the outcomes of principal component analysis used in the study have revealed the high level of genetic variation and the traits contributing to the variation were identified. CIP403, CIP404, CIP405, CIP413 and CIP445 accessions identified as superior based on cluster relationship and PCA bi-plot

Antioxidant, anti-inflammatory, thrombolytic, and cytotoxic activities of Gynura nepalensis DC. and isolation of its steroid constituents

The study was aimed at phytochemical profiling of Gynura nepalensis DC. as well as assessment of possible antioxidant, anti-inflammatory, thrombolytic, and cytotoxic activities of its fractions named hexane (HSF), dichloromethane (DCMSF), ethyl acetate (EASF) and aqueous (AQSF) soluble fractions through in vitro assays. Chromatographic fractionation and purification followed by 1H NMR spectral analysis afforded two sterols named β-sitosterol and stigmasterol, which appears to be a first-time reporting from the species. In the free radical scavenging assay, both DCMSF and EASF exhibited prominent antioxidant activities which was further reinforced by their comparatively greater phenolic content. In membrane stabilizing test, prominent inhibitions of hemolysis as exerted by EASF, AQSF, and DCMSF, were evident of their significant anti-inflammatory activities, compared to aspirin. With respect to streptokinase, HSF and DCMSF demonstrated moderate thrombolytic properties, whereas in the cytotoxicity study, only HSF illustrated prominent cytotoxic properties. In conclusion, the results are suggestive of the presence of bioactive molecules within the fractions capable of exerting potent pharmacological activities

Performance of a hermetic device and neem (Azadirachta indica) in storing wheat seed: Evidence from participatory household trials in central Bangladesh

Smallholder farmers in Bangladesh often use low-density polyethylene (LDPE) bags contained within woven polypropylene bags to store wheat seed during the summer monsoon that precedes winter season planting. High humidity and temperature during this period can encourage increased seed moisture and pests, thereby lowering seed quality. Following a farm household survey conducted to inform trial design, eighty farmers were engaged in an action research process in which they participated in designing and conducting trials comparing traditional and alternative seed storage methods over 30 weeks. Factorial treatments included comparison of hermetic SuperGrainbags® (Premium RZ) against LDPE bags, both with and without the addition of dried neem tree leaves (Azadirachta indica). SuperGrainbags® were more effective in maintaining seed moisture at acceptable levels close to pre-storage conditions than LDPE bags. Both seed germination and seedling coleoptile length were significantly greater in hermetic than LDPE bags. Neem had no effect on seed moisture, germination, or coleoptile length. SuperGrainbags® were also more effective in abating seed damage during storage, although inclusion of neem within LDPE bags also had significant damage. Quantification of seed predating insects and diseases suggested that SuperGrainbags® also suppressed Coleopteran pests and blackspot, the latter indicative of Fusarium graminearum. Conversely, where farmers used LDPE bags, neem also had an additional though limited pest suppressive effect. Post-storage treatment scoring by farmers revealed a strong preference for SuperGrainbags® and no preference differences for or against neem. This study demonstrates a process by which farmers can be involved in the participatory co-design and testing of alternative wheat storage options, and stresses the need to develop SuperGrainbag® supply chains so hermetic storage can be made widely available