152 research outputs found
Fluorescence spectroscopy and its applications: A Review
Fluorescence spectroscopy is a rapid, sensitive method for characterizing molecular environments and events samples. Fluorimetry is chosen for its extraordinary sensitivity, high specificity, simplicity and low cost as compared to other analytical techniques. It is widely accepted and powerful technique that is used for a variety of environmental, industrial, medical diagnostics, DNA sequencing, forensics, genetic analysis and biotechnology applications. It is a valuable analytical tool for both quantitative and qualitative analysis. This article presents a brief overview of the theory of fluorescence spectroscopy, together with examples of applications of this technique in organic and inorganic chemistry, medical diagnosis, medical science etc
ASSESSMENT OF PSYCHOSOCIAL CONSEQUENCES OF COVID-19 IN DIABETES PATIENTS: A CROSS-SECTIONAL STUDY
Objective: The aim of the study was to assess the psychosocial health, to identify coronavirus disease 2019 (COVID-19) specific concerns in people with diabetes and to analyze the changes in the management of diabetes during the corona crisis.
Methods: An online cross-sectional survey was conducted for a period of 6 months among the South Indian diabetes population. A validated questionnaire containing socio-demographics, general health status, the diabetes distress scale 17, and the 3-itemUCLA loneliness scale was sent to 600 people, out of which 226 participants were included in the study based on inclusion and exclusion criteria. Responses were analyzed using univariate and multivariate logistic regressions.
Results: Among the participants, females had moderate to high diabetes distress (54.4%). The subjects in the age group of 40тАУ59 years felt lonely and had more diabetes distress. The two major worries among the participants were that тАЬthey are labeled as a risk groupтАЭ and that тАЬthey might be overly affected.тАЭ Participants with gestational diabetes mellitus (DM), DM duration of 7 months to 1 year, taking both medications (oral antidiabetic medication and insulin), HbA1c level of more than 8%, infected with coronavirus or having someone close to them infected with coronavirus, were more concerned about taking medication daily, and those who changed their meal plan during the corona period had the greatest concerns.
Conclusion: People who participated in the survey were more worried about the COVID-19 situation and were very disturbed. Psychosocial consequences of COVID-19 were more prevalent in diabetes patients, including diabetes distress, loneliness, and changes in daily diabetes management
Seismic Pounding of Bridges due to Multi-Support Excitation with traveling wave
Abstract: -Among structural damages, seismic induced pounding has been commonly observed in severalearthquakes. When lateral and transverse movement of a structure occurs during earthquakes, it will hit adjacent structure and bounce back. This back and forth hitting of adjacent structures is known as pounding. The earthquake ground motion is usually assumed as uniform dynamic motion in seismic analysis. This assumption may be inadequate for structures placed at large areas like bridge, dam etc. Pounding in bridges is a result of the relative movement of the adjacent bridge superstructures at the expansion joints. This movement depends on different structural dynamic properties of the adjacent spans and characteristics of ground motions at the pier supports along the bridge. This paper includes a study of effect of pounding between bridge superstructures under the action of earthquake motion having multi-support excitation with traveling effect. The present study is a numerical investigation of pounding effect on a simply supported bridge using finite element method, using the software, OpenSees
Some observations on the beaked sea snake Enhydrina schistosa (Daudin, 1803) in the mudbank area, off Alapuzha, Kerala, southwest coast of India
Hook-nosed sea snake or beaked snake, Enhydrina schistosa
were caught during experimental fishing operations in the
mudbank region along central Kerala Coast at depths
ranging from 6 to 12 m. The sea snakes were found to
form aggregations of 5 to 6 numbers and were able to
tolerate highly turbid waters. The catfish Arius jella and the
puffer fish Lagocephalus inermis were the dominant prey
items. mudbanks are unusually calm areas which form
along the Kerala coast during the monsoon. The inshore
waters including the mudbanks are intense fishing areas of
non mechanized crafts during the monsoon. The presence
of venomous sea snakes is precarious and there is a need
to give awareness programme for the fishers about this
danger
Marine litter - A problem for stake net fishers: A case study in Vembanad Lake, Kerala
Plastics have becom e an inevitable item in daily life. Since they are non -deg rad able
and persist fo r cen tau ries th ey are conside red as one o f the m ost serious th rea ts
to the m a rine ecosystem in the cu rren t cen tu ry. M a rine litte r consisting o f plastics
and o th e r non -biod eg rad able m aterial reach th e sea th ro ug h rivers and estuaries
due to im p rop e r disposal o r som e tim es are discarded directly into the ecosystem .
Th e coastal w a te rs are im p o rtan t fishing areas w h e re tradition al fish e rm en use
diffe ren t types o f c ra ft and gea r to h a rvest the fish from the na tu ral w a te rs. The
prog ressive increase in plastics and th eir indisc rim in a te discards have a ffected the
ecosystem and also th e fish e rs w h o depend on the ecosystem
A case of encysted endoparasitic copepods in the Spiny cheek grouper
During the routine biological investigations on Epinephelus
diacanthus (Spiny cheek grouper), a fish with a pair of cysts attached to the abdominal musculature was observed. The cysts were oval, thin-walled, dark grey coloured,
measured approximately 3 cm in diameter, and located adjacent to each other
Sequential development of histopathological manifestations in response to experimental infection of Vibrio alginolyticus in Asian Seabass
Asian seabass (Lates calcarifer), an important species for mariculture in
the Asia-Pacific region, has been threatened by various infectious
diseases hampering the profitability of its aquaculture. Vibriosis is the
most common disease leading to considerable mortality and economic
loss. Recent studies revealed that Vibrio alginolyticus is one of the most
common species that causes vibriosis in farmed aquatic animals,
including L. calcarifer. Despite our understanding of the aetiology, there
is little information on the subsequent histological changes following
experimental infection in fish. The present study fills this gap by
investigating the sequential histopathological alterations in Asian
seabass post intraperitoneal injection with V. alginolyticus. Significant
organ changes were seen in the spleen, kidneys, liver, and to a lesser
extent, the gills. The findings revealed an initial latency before major
tissue responses occurred, with the kidney exhibiting the earliest and
most severe changes. The spleen and liver also showed substantial
alterations, while the gills showed minor changes. Experimental V.
alginolyticus infection resulted in 90-95% mortality within 24-48 hours
post-challenge. Our findings contribute to a more thorough
understanding of histological changes in Asian seabass during V.
alginolyticus infection, highlighting the importance of disease
progression, and mitigation measures
Thin Film Growth and Device Fabrication of Iron-Based Superconductors
Iron-based superconductors have received much attention as a new family of
high-temperature superconductors owing to their unique properties and distinct
differences from cuprates and conventional superconductors. This paper reviews
progress in thin film research on iron-based superconductors since their
discovery for each of five material systems with an emphasis on growth,
physical properties, device fabrication, and relevant bulk material properties.Comment: To appear in J. Phys. Soc. Jp
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