DOI: DOI: 10.37421/2684-4923.22.06.168
The semiconducting Mg-Co ferrite nanoparticles prepared via controlled co-precipitation method. The X-ray diffraction and Transmission Electron Microscopy (SAED patterns) techniques were employed to study phase, composition and the average particle size of the resulting material. The photocatalytic degradation of methyl orange and Congo red dye were performed under illumination of visible light (Philips 250 Watt) as source of photons. The behavior of this reaction was pseudo first order and the maximum photodecolorization efficiency was 85.16% for methyl orange and 95.40 for Congo red in 60 min. at 30°C.
Fozia Mujahid
Introduction: With the increasing availability of ultrasound and concern for malignancy, there has been significant increase in the detection of thyroid lesions. Almost all the cases of thyroid lesions are referred for ultrasound. However, there is no uniformity in the reporting pattern amongst radiologists and hence such ultrasound reports are mostly inconclusive to exclude thyroid malignancy. Therefore, most of the patients have to undergo avoidable Fine Needle Aspiration Cytology (FNAC) or Fine Needle Non-Aspiration Cytology (FNNAC). FNNAC or FNAC is invasive technique which is performed in most of the cases of thyroid nodules to ascertain the type of nodules. The sonographic assessment of thyroid nodule can provide can alternative method to this invasive modality of diagnosis. Therefore, the need was felt for establishing uniformity in ultrasound reporting of thyroid nodules and risk stratification for malignancy with aim of reducing unnecessary FNNAC. TIRADS classification brings uniformity in reporting and reduces ambiguity in management of the patients Objective: To perform comparative evaluation of Thyroid Imaging Reporting and Data System (TIRADS) and cytopathological evaluation of thyroid nodules FNNAC in Indian scenario. Methodology: Multicentric prospective study was conducted in the department of radio diagnosis and department of surgery at defence service hospitals of Hisar and Jaipur during the study period of 01 July 2017 to 31 March 2018. Results: Our study shows high degree of correlation between TIRADS classification and cytopathological evaluation of thyroid nodules. Hence TIRADS can be used an effective tool for avoiding unnecessary FNNAC procedures.
M. Shohel Ranaa*, Nilufa Aktara, Kabir Hossaina, Asmaul Hosnaa and Ryan Amita
DOI: DOI: 10.37421/2684-4923.22.6.172
Bangladesh, a riverine country, is suffering from acquit riverbank erosion which compels millions of her population to be displaced from their place of origin. Flood and riverbank erosion are dynamic and natural processes which have an adverse impact on livelihood. Our study focuses the socio-demographic profile of the victims of the study area. In our study we have a large number of the respondents receive the formal education that is also 60% of the respondents. Only 10% of respondents who finished the S.S.C. The damage caused by this disaster is a negative cause of illiteracy in the region. About 56% respondent says that river erosion has an impact on their child education. Most often after losing their home they have moved somewhere else therefore their child can’t attend the same school. More than 2 times the people about 54.9% are facing riverbank erosion and 98.8% of them are migrated to another place. After migration 66.4% of them are facing economic crisis and 82.6% of them have changed their occupations due to this calamity. Accommodations, education, treatment, are one of the basic needs which are in great trouble for those areas. Even after so much, only 70% of the people didn’t get any relief. Above all, 88% people believe that such kind of disasters can be solved by constructing embankments. There is a significant association between educational level and tackling erosion. In fact, caused riverbank erosion every year unemployment, landless and poverty are increasing which is responsible to country wide unstable condition.
DOI: 10.37421/2684-4923.2022.6.185
DOI: 10.37421/2684-4923.2022.6.183
First, the area's most significant environmental threats were identified through questionnaire campaigns run by municipal employees. Hazard maps were created by utilizing a variety of environmental hazards indicators and concentrating on the threats that were primarily perceived by the region's residents, such as deforestation, water pollution and changes in precipitation. After a pair-wise comparison, a GIS environment was used to create an integrated hazard map. The proposed method can be scaled up for integrated environmental hazards analysis in similar regions of Latin America and the maps serve as a first baseline for the analysis of the current state of natural resources in the "Valles Cruceos" area.
DOI: 10.37421/2684-4923.2022.6.184
The rural region known as "Valles Cruceos" is crucial to the supply of food and other resources to the fast-growing neighboring city of Santa Cruz de la Sierra (Bolivia). The region, like many other rural areas in South and Central America, is experiencing progressive and severe environmental degradation as a result of the growing demand for its natural resources. In this circumstance, sound policies and governance for sustainable land management are ineffective and unsupported by data and research findings. With this study, we want to create a novel and useful integrated hazard analysis method that will help understand hazard patterns based on evidence and inform risk assessment processes across the urban-rural continuum.
DOI: 10.37421/2684-4923.2022.6.187
Ezhil Kumar*, Thirunavukkarasu, Abishek and Aakash
DOI: 10.37421/2684-4923.2023.7.189
There is a great impact on fresh water in the world; this is because of the drastic increase in the human population which leads to the continuous shortage of fresh water. Scientists found various methods to solve this crisis. These include treating industrial wastewater, purifying the seawater, drinking water taken from the ground etc. This review sheds light on the traditional and modern methods applied for this purpose with a focus on the use of natural materials as sustainable and environmentally friendly sources for creating new materials used in this regard. Mainly this review helps to remove the harmful metal arsenic present in industrial waste and groundwater. There are various methods used to remove these particles which are present in the wastewater. Some of the important methods include reverse osmosis, adsorption, extraction, and absorption of the targeted particles using various nanoparticles. Wastewater treatment can be done in three different categories. They are chemical, mechanical, and biological. In this article, we will learn how the metal arsenic can be removed from wastewater by various methods.
DOI: 10.37421/2684-4923.2025.9.259
Climate change models permit the simulation of the special effects of the assemblage of greenhouse gases centuries into the future, based on contemporary thoughtful of atmospheric physics and chemistry. The global climate modeling characterizes the climate system implementing a 3D grid with horizontal coarse resolution of 250 km-600 km over the world and 10-20 vertical layers in the atmosphere as well as around 30 layers in the oceans. Although, regional climate models which zoom in on precise areas, have much finer resolutions, commonly a few tens of kilometers. This is ample quicker to the scale of real world observations about topography, land cover and soil types, all of which affect the climate system. Because of this reason, regional climate models can use more real life data than global models and their simulations are generally more accurate. Though, regional climate model is useful for investigating natural variations in the Earth’s climate; studying how land use (such as agriculture and deforestation) can affect regional weather patterns; and making more detailed predictions about how climate change will affect the places where people live. Conjoining global and regional models allows finer scale investigation of regional details of change to horizontal resolutions of 10 km-50 km. Consequently, scientists use climate models to predict how the climate might change in the future, especially as human actions, like adding greenhouse gases to the atmosphere, change the basic conditions of our planet.
Lars H. Jensen
DOI: 10.37421/2684-4923.2025.9.259
Journal of Environmental Hazards received 51 citations as per Google Scholar report
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