Impact of COVID-19 on Bangladesh's agriculture sector and the ways forward to recovery: An overview

The COVID-19 outbreak has left an indelible effect on Bangladesh's agriculture sector, like that of most developing countries. Considering that agriculture is the cornerstone of Bangladesh's economy, we made an effort to compile a detailed scenario of COVID-19's effect on it through a relevant literature review. Since no significant studies outlined a complete picture of the pandemic's impact on agriculture, our study ventured to reveal the circumstances of each sub-sector of agriculture. During the early phases of the pandemic, farmers engaged in agriculture production got poor prices, with the majority of them incurring losses. Labor shortages and input scarcity were the most prevailing hindrances across all the sub-sectors. The export volume seemed to shrink hugely, hurting the country's GDP. The supply chain for agricultural commodities was disrupted as a result of the lockdown and mobility restrictions, which resulted in the elimination of the majority of intermediaries. Unprecedented challenges occurred in the input and output markets, as well as in the agro-industries, exacerbating the situation. However, while the vegetables and poultry sub-sectors recovered utterly and the dairy sub-sector somehow managed to stabilize, other sub-sectors are still grieving. This study highlighted some policies that can mitigate the miseries of the agriculture sector and overcome further potential threats in Bangladesh and other agriculture-led developing countries.     

Quantitative Determination of Cannabinoids in Cannabis and Cannabis Products Using Ultra‐High‐Performance Supercritical Fluid Chromatography and Diode Array/Mass Spectrometric Detection

Ultra‐high‐performance supercritical fluid chromatography (UHPSFC ) is an efficient analytical technique and has not been fully employed for the analysis of cannabis. Here, a novel method was developed for the analysis of 30 cannabis plant extracts and preparations using UHPSFC /PDA ‐MS . Nine of the most abundant cannabinoids, viz . CBD , ?⁸‐THC , THCV , ?⁹‐THC , CBN , CBG , THCA ‐A, CBDA , and CBGA , were quantitatively determined (RSD s < 6.9%). Unlike GC methods, no derivatization or decarboxylation was required prior to UHPSFC analysis. The UHPSFC chromatographic separation of cannabinoids displayed an inverse elution order compared to UHPLC . Combining with PDA ‐MS , this orthogonality is valuable for discrimination of cannabinoids in complex matrices. The developed method was validated, and the quantification results were compared with a standard UHPLC method. The RSD s of these two methods were within ±13.0%. Finally, chemometric analysis including principal component analysis (PCA ) and partial least squares‐discriminant analysis (PLS ‐DA ) were used to differentiate between cannabis samples.     

Can microcredit worsen poverty? Cases of exacerbated poverty in Bangladesh

Worldwide, microcredit has been recognised as a successful innovation in poverty alleviation. However, some claim that microcredit exacerbates poverty in developing countries. This study examines cases in Bangladesh where microcredit has actually worsened poverty among borrowers and investigates the underlying reasons for this adverse trend. Our results show that microcredit can exacerbate poverty in four interrelated circumstances. We argue that households living in extreme conditions of poverty who possess minimal or no surplus financial capacity to cope with contingencies are prone to adverse effects of microcredit, and suggest ways to avoid microcredit borrowers falling victims to such unintended consequences.

Le microcrédit peut-il aggraver la pauvreté ? Quelques cas de pauvreté exacerbée au Bangladesh

De par le monde, le microcrédit a été reconnu comme une innovation efficace en vue de réduire la pauvreté. Cependant, certains affirment que le microcrédit exacerbe la pauvreté dans les pays en développement. Cette étude traite de cas observés au Bangladesh où le microcrédit a de fait aggravé la pauvreté parmi les emprunteurs et se penche sur les raisons sous-jacentes de cette tendance négative. Nos résultats montrent que le microcrédit peut exacerber la pauvreté dans quatre situations interconnectées. Nous soutenons que les ménages qui vivent dans des conditions extrêmes de pauvreté et qui possèdent une capacité financière minime ou inexistante pour faire face aux imprévus sont sujets aux effets négatifs du microcrédit et nous suggérons des manières d'éviter que les récipiendaires de microcrédit deviennent les victimes de conséquences non voulues de ce type.

O microcrédito pode agravar a pobreza? Casos de pobreza exacerbada em Bangladesh

No mundo todo, o microcrédito tem sido reconhecido como uma inovação bem-sucedida na redução da pobreza. Porém, alguns afirmam que o microcrédito agrava a pobreza em países em desenvolvimento. Este estudo examina casos em Bangladesh em que o microcrédito na verdade tem agravado a pobreza entre tomadores de empréstimo e investiga as razões subjacentes para esta tendência adversa. Nossos resultados mostram que o microcrédito pode agravar a pobreza em quatro circunstâncias inter-relacionadas. Argumentamos que as famílias que vivem em condições extremas de pobreza e que possuem mínima ou nenhuma capacidade financeira excedente para lidar com contingências são suscetíveis aos efeitos adversos do microcrédito e sugerimos maneiras de se evitar que os tomadores de microcrédito tornem-se vítimas de tais consequências não pretendidas.

¿Pueden los microcréditos incrementar la pobreza? Casos donde aumentó la pobreza en Bangladesh

Los microcréditos han sido ampliamente reconocidos como una iniciativa eficaz para disminuir la pobreza. Sin embargo, hay quienes afirman que los microcréditos incrementan la pobreza que ya existe en los países en desarrollo. Este ensayo analiza diversos casos en Bangladesh, donde se ha comprobado que los microcréditos agudizaron la pobreza de los prestatarios, e investiga las principales causas de esta tendencia negativa. Los autores señalan que los microcréditos pueden incrementar la pobreza en cuatro circunstancias que se relacionan entre sí. Sostienen también que las familias que viven en condiciones de pobreza extrema y cuentan con una mínima reserva financiera para imprevistos, o con ninguna, tienden a sufrir los efectos adversos de los microcréditos. El ensayo sugiere maneras de evitar que los prestatarios se expongan a estas consecuencias no previstas de los microcréditos.     

Evaluation of maxillary sinus dimensions in gender determination using helical CT scanning

Gender determination is an important step in identification in forensic medicine. CT measurements of maxillary sinuses may be useful to support gender identification. This study was undertaken to study the accuracy and reliability of maxillary sinus dimensions measurement in gender classification through the use of reconstructed helical CT images. Eighty-eight patients (43 men and 45 women) with age range from 20 to 49 years were selected in this study. The width, length, and height of the maxillary sinuses in addition to the total distance across both sinuses were measured. Data were subjected to discriminant analysis for gender using multiple regression analysis. Maxillary sinus height was the best discriminant parameter that could be used to study sexual dimorphism with an overall accuracy of 71.6%. Using multivariate analysis, 74.4% of male sinuses and 73.3% of female sinuses were sexed correctly. The overall percentage for sexing maxillary sinuses correctly was 73.9%. It can be concluded that reconstructed CT image can provide valuable measurements for maxillary sinuses and could be used for sexing when other methods of sexing are not conclusive.     

Patella sex determination by 3D statistical shape models and nonlinear classifiers

Sex determination is one of the essential steps in personal identification of an individual from skeletal remains. Most elements of the skeleton have been subjected to discriminant function analysis for sex estimation, but little work has been done in terms of the patella. This paper proposes a new sex determination method from the patella using a novel automated feature extraction technique. A dataset of 228 patellae (95 females and 133 males) was amassed from the William M. Bass Donated Skeletal Collection from the University of Tennessee and was subjected to noninvasive high resolution computed tomography (CT). After the CT data were segmented, a set of features was automatically extracted, normalized, and ranked. The segmentation process with surface smoothing minimizes the noise from enthesophytes and ultimately allows our methods to distinguish variations in patellar morphology. These features include geometric features, moments, principal axes, and principal components. A feature vector of dimension 45 for each subject was then constructed. A set of statistical and supervised neural network classification methods were used to classify the sex of the patellar feature vectors. Nonlinear classifiers such as neural networks have been used in previous research to analyze several medical diagnosis problems, including quantitative tissue characterization and automated chromosome classification. In this paper, different classification methods were compared. Classification success ranged from 83.77% average classification rate using labels from a Fuzzy C-Means (FCM) clustering step, to 90.3% for linear discriminant classification (LDC). We obtained results of 96.02% and 93.51% training and testing classification rates, respectively, using feed-forward backpropagation neural networks (NN). These promising results using newly developed features and the application of nonlinear classifiers encourage the usage of these methods in forensic anthropology for identifying the sex of an individual from incomplete skeletons retaining at least one patella.     

Potency Trends of Δ9‐THC and Other Cannabinoids in Confiscated Cannabis Preparations from 1993 to 2008*

Abstract: The University of Mississippi has a contract with the National Institute on Drug Abuse (NIDA) to carry out a variety of research activities dealing with cannabis, including the Potency Monitoring (PM) program, which provides analytical potency data on cannabis preparations confiscated in the United States. This report provides data on 46,211 samples seized and analyzed by gas chromatography‐flame ionization detection (GC‐FID) during 1993–2008. The data showed an upward trend in the mean Δ⁹‐tetrahydrocannabinol (Δ⁹‐THC) content of all confiscated cannabis preparations, which increased from 3.4% in 1993 to 8.8% in 2008. Hashish potencies did not increase consistently during this period; however, the mean yearly potency varied from 2.5–9.2% (1993–2003) to 12.0–29.3% (2004–2008). Hash oil potencies also varied considerably during this period (16.8 ± 16.3%). The increase in cannabis preparation potency is mainly due to the increase in the potency of nondomestic versus domestic samples.     

The university technology transfer revolution in Saudi Arabia

This paper explains why and how a technology transfer revolution is taking place in Saudi Arabia to meet the mandate that Saudi Arabia become globally competitive as a knowledge-based innovative economy. The paper explains and identifies the new policies and institutions that have been introduced and developed to facilitate technology transfer and knowledge spillovers from the universities for commercialization and ultimately innovative activity and economic growth. The paper finds that a technology transfer revolution in Saudi Arabia is taking place, with the goal of leapfrogging from the factor-based stage of economic development to the innovation-based stage of economic development, while bypassing the intermediary efficiency-based stage of economic development.     

Efficacy of Think Tanks in Influencing Public Policies: The Case of Bangladesh

Abstract

This article analyzes contextual and organizational challenges and constraints faced by think tanks in Bangladesh. It argues that while think tanks have been visible in the policy discourse through fostering policy debates and advocating policy proposals, their direct impact on policy outcomes remains limited. Think tanks’ research findings are often interpreted through the prism of politics. A number of think tanks are institutionally weak and face challenges in funding, attracting researchers, and retaining research focus. Think tanks can potentially focus attention to the wider policy community, and emphasize intermediate influences, such as, building capacity, wider networking and interacting with a broader base of policy-makers, in order to be effective and relevant in the policy discussions.     

Evaluation of Skin Surface as an Alternative Source of Reference DNA Samples: A Pilot Study

An acceptable area for collecting DNA reference sample is a part of the forensic DNA analysis development. The aim of this study was to evaluate skin surface cells (SSC) as an alternate source of reference DNA sample. From each volunteer (n = 10), six samples from skin surface areas (forearm and fingertips) and two traditional samples (blood and buccal cells) were collected. Genomic DNA was extracted and quantified then genotyped using standard techniques. The highest DNA concentration of SSC samples was collected using the tape/forearm method of collection (2.1 ng/μL). Cotton swabs moistened with ethanol yielded higher quantities of DNA than swabs moistened with salicylic acid, and it gave the highest percentage of full STR profiles (97%). This study supports the use of SSC as a noninvasive sampling technique and as a extremely useful source of DNA reference samples among certain cultures where the use of buccal swabs can be considered socially unacceptable.     

The Secret Behind China's Growth

正There is no rocket science,magic or dubiety involved in China’s development miracle which posted a GDP growth rate of 6.9 percent in 2017,higher than the set target.It is the outcome of an economic management system that was put in place by a visionary political leadership to let everyone enjoy the fruits of sustainable progress.This has set the stage for resilient growth.It has impressed the world at a time when speculation was doing