Climate change imposes biotic and abiotic stresses on soil and plant health all across the planet. Beneficial rhizobacterial genera, such as Bacillus, Pseudomonas, Paraburkholderia, Rhizobium, Serratia, and others, are gaining popularity due to their ability to provide simultaneous nutrition and protection of plants in adverse climatic conditions. Plant growth-promoting rhizobacteria are known to boost soil and plant health through a variety of direct and indirect mechanisms. However, various issues limit the wider commercialization of bacterial biostimulants, such as variable performance in different environmental conditions, poor shelf-life, application challenges, and our poor understanding on complex mechanisms of their interactions with plants and environment. This study focused on detecting the most recent findings on the improvement of plant and soil health under a stressful environment by the application of beneficial rhizobacteria. For a critical and systematic review story, we conducted a non-exhaustive but rigorous literature survey to assemble the most relevant literature (sorting of a total of 236 out of 300 articles produced from the search). In addition, a critical discussion deciphering the major challenges for the commercialization of these bioagents as biofertilizer, biostimulants, and biopesticides was undertaken to unlock the prospective research avenues and wider application of these natural resources. The advancement of biotechnological tools may help to enhance the sustainable use of bacterial biostimulants in agriculture. The perspective of biostimulants is also systematically evaluated for a better understanding of the molecular crosstalk between plants and beneficial bacteria in the changing climate towards sustainable soil and plant health.

Food waste management is a critical environmental issue in many developing countries, including Bangladesh, due to unplanned food waste disposal and lack of dedicated food waste legislation. In those countries, a significant amount of food waste is discarded to the environment rather than being recycled. In Bangladesh, food waste is traditionally often used for composting, landfilling, and feeding animals, as there is no valorization option. In addition, food waste and food waste streams of food industries are utilized for the recycling and production of diverse economically valuable bioactive compounds. Therefore, we conducted a detailed literature review on food waste management and valorization options in Bangladesh and discussed the findings in the context of global status. The amount of food waste in Bangladesh is quite high, and it needs to be recycled to promote the circular economy of this developing nation. In this study, it is revealed that various research uncertainties and gaps regarding sustainable food waste management exist in Bangladesh, which should be investigated as priority research. Furthermore, a logical and global synchronization of the contemporary approach to food waste valorization with policy advocacy is proposed, to ensure efficient food waste decontamination and recycling in Bangladesh. This is the first and most comprehensive evaluation of the present research trend and prospects for sustainable recycling of food waste for the circular economy of Bangladesh.

COVID-19 pathogens were identified as new coronaviruses by the sequencing of sample lower respiratory tracts from patients affected, which share a sequence of 79.6 percent identified as severe acute respiratory syndrome coronavirus. The virus has spread rapidly worldwide and was reported as a pandemic on 11 March 2020 since its detection in Wuhan, China in December 2019. The principal characteristics of COVID-19 were diffuse alveolar damage and acute respiratory failure, involving other organs. Although co-morbidities such as diabetes and cardiovascular disease have reported as risk factors of COVID-19, there is still no proof of an increased vulnerability to chronic renal disease in patients with chronic kidney disease (CKDs), although there are several studies continuing worldwide. CKD is differentiated by kidney structure abnormalities or functions which last > 3 months and have an impact on patient health. The deaths were not specifically caused by COVID-19, but were considered systemic causes. In HD patients with COVID-19 there were decreased lymphopenia, reduced serum levels of inflammatory receptors and more severe clinical disease than patients with HD CKD. Therefore, additional precautions should be taken in CKD patients to minimize risk of the infection. Doctors can also be carefully watched to identify signs of worsening of the disease in CKD patients with confirmed COVID-19.

Background: In recent years many researches has centered on the influence of thyroid disease on pregnancy and the consequence of offspring.Aim: The present study was conducted to evaluate the relationship of multiple risk factors and thyroid functions among Bangladeshi young women during 1st half of the pregnancy.Material and methods: This cross-sectional study was done in in the Department of Obstetrics & Gynecology of Dhaka Medical College Hospital, Dhaka on 200 pregnant women in their 1st half of pregnancy attending antenatal clinic, DMCH from December 2018 to December 2019. Where inclusion criteria were healthy singleton pregnant women up to 20 weeks of gestation.Results:According to this study, 10.5% subclinical hypothyroidism group and 36.8% from overt hypothyroidism patients had family history of thyroid dysfunction. 6.5% had stage-1 hypertension and 11% patients had stage-2 hypertension. Also, abnormal blood pressure level is highly correlated with thyroid dysfunction status. The rate of iron disfunction strongly correlated with thyroid dysfunction. 6% patients had mid-level of iron deficiency and 13.5% had iron deficiency anemia. Also, 62.5% had mild hemoglobin level and 37.5% had moderate- severe mild hemoglobin level.Conclusion:The results indicate that, iron deficiency, hypertension can be seen in hypothyroidism during the 1st half of pregnancy. Hence, routine thyroid monitoring, checkup and appropriate management is necessary for hyperthyroidism in the 1st half of pregnancy to avoid more adverse outcome.

Identifying the effects of temperature on coronavirus disease (COVID-19) outbreak is essential for modelling studies and guiding intervention strategies all over the world. The aim of the study is to understand the effect of temperature on global epidemic trends, geographic distribution, and transmission patterns of COVID-19. Data on COVID-19 and temperature from 1st February 2020 to 30th April 2020 were included. The epidemic trends we analyzed using both descriptive and inferential statistics; the growth of affected countries was by descriptive analysis; and the global distribution and transmission trend by inferential statistics. Scattered plot diagram matrix was performed for Europe and Africa data. Based on 90 days COVID-19 affected and death data survival analysis was performed for South East Asian region. Lowest three months average temperature was in Europe (41.060F) from February 2020 to April 2020 (34.60F, 41.10F and 47.50F) shows the highest average confirmed case. Highest three months avg. temperature was Africa (74.40F) February 2020 to April 2020 (73.40F, 74.70F and 75.30F) shows the lowest avg. confirmed case and avg. death. In Europe, average temperatures with transmission positively correlated on the other hand in Africa average with transmission were negatively correlated. The results of the study suggested that, temperature had positive or negative effects on the geographical trend of COVID-19 confirmed cases, death cases, recovered case or transmission. It is being suggested that geographical regions with a lower temperature need to adopt the stricter control measures and WHO is a guideline to prevent rapid spread of COVID-19.