Rozgan University

This research looks at how the growth of cities and industries affects the levels of heavy metals in the soil, which can impact people's health. We find out where the pollution comes from, such as factories, car fumes, and improper waste disposal, by reviewing existing studies. We use different methods to test the soil for heavy metals and study how exposure to these metals in urban areas affects people's health. The evidence shows a connection between high levels of heavy metals in city soil and health problems like breathing issues, brain disorders, and overall toxicity in the body. We also explore how these metals get into the human body, highlighting the importance of understanding how they are available and the ways people are exposed. To deal with polluted city soils, we look at different ways to manage the soil and suggest sustainable methods to reduce heavy metal pollution. Our discoveries add to what we know about urban environmental health, emphasizing the need for actions to protect city residents. Ultimately, this study aims to give important information and insights to policymakers, city planners, and public health officials for managing and lessening the health risks linked to heavy metal contamination in urban soils.

A field experiment was conducted during 2021 at the farm of Afghanistan National Agricultural Science and Technology University (ANASTU) to find out the suitable Response of Soybean to Nitrogen Levels and Weed Management on growth, yield and economic efficiency, the experimental design was Split plot design with two factors replicated thrice, the experiment consist of three weed management methods (Un-weeded check, Pendimethalin + hand weeding and Pendimethalin + Imazethapyr) and four nitrogen levels (Control, 40 kg N/ha, 60 kg N/ha and 80 kg N/ha). The maximum growth, yield and economic efficiency was in treatment (Pendimethalin + Imazethapyr), Root dry weight (9.42/plant), Nodules/plant (25.5),Nodes/plant (25.57, 27.68), Internodes distance(36.88 mm), Pods/plant(41.1), Seeds/pod (2.5), 1000 seed weight (102.5 gr), Grain yield (2.20 ton/ha), Gross Returns (187.863 AFN/ha), Net Returns (134.308 AFN/ha) and Benefit: cost ratio (2.504) compared to Un-weeded check and Pendimethalin + hand weeding, Root dry weight (9.67g/plant), Nodules/plant (25.6), Nodes/plant (27.68), Internodes distance(37.99 mm), Pods/plant(45.3), Seeds/pod (2.5), 1000 seed weight (104.7gr), Grain yield (2.20 ton/ha), Gross Returns (187.922 AFN/ha), Net Returns (133.159 AFN/ha) compared to 60 kg N/ha, 40 kg N/ha and control. it can be concluded that the application of (Pendimethalin + Imazethapyr) along with 80 kg N/ha was found to be suitable for profitable cultivation of soybean with optimum quality under the agro-climatic conditions of Kandahar Afghanistan.

Stem cells are known as special somatic cell types that have the ability to self-renew and differentiate into various types of cells. They are categorized into two major groups such as embryonic stem cells and adult stem cells. Embryonic stem cells are pluripotent, which have the potency to differentiate into almost all cell types and grow up from the mesoderm, endoderm, and ectoderm germ layers at the beginning stages of embryo. While adult stem cells can be pluripotent or multipotent, which can differentiate into the family of a closely related cells. Over few decades, researchers have been studying and exploring new ways to treat different types of diseases like Parkinson’s and Alzheimer’s disease by using stem cells. Hence, embryonic and adult stem cells have been widely used in stem cell therapy. Here, we elaborate the problems of using embryonic stem cells and adult stem cells in stem cell therapy and its possible solutions, and discuss the applications of both stem cells types in biology-based field including disease modelling, regenerative medicine, drug discovery and cytotoxicity studies.

Well-being of Chinese University Students in China and Students in Poland. Cross-Cultural Comparisons