521 research outputs found
Synthesis of Nanocrystalline PZT by Hydrothermal Method
Synthesis of lead zirconium titanate by a simple, low-energy consumption hydrothermalmeans is being reported. The precursor materials have been chosen and the method is tailoredso that the process becomes economical and offers low lead loss. The synthesised powdershave been analysed by FTIR, XRD, SEM, TEM, and TGA. The results show the formation oftetragonal PZT nanoparticles with an average yield of ~75 per cent. On the basis of FTIR, theproduct formation is understood to proceed via the formation of a three metal cation hydroxidecomplex, that under hydrothermal treatment undergoes conversion directly to form the tetragonalphase of lead zirconium titanate
Effects of acclimation on the haematological indices of different groups of fresh water teleosts
Hematological parameters have been recognized as valuable tools for monitoring fish health. The aim of the present study was to obtain a basic knowledge of the hematological responses of different groups of fresh water teleosts during acclimation period. Haematological analysis was carried out in three different groups of teleosts namely Group I: Heteropneustes fossilis and Clarias gariepinus (Siluriformes), Group II: Anabas testudineus and Channa striatus (Perciformes), Group III: Labeo rohita and Cyprinus carpio (Cypriniformes). In all groups of teleosts, RBC and Hb were significantly (p<0.05) decreased after 7 days of captivity in response to stress factors raised in capture, handling and sampling procedure. WBC was found to be significantly (p<0.05) increased in group I (Siluriformes), group II (Perciformes) and group III (Cypriniformes) of teleosts after 7 days of captivity due to enhanced production of leucocytes in the hematopoietic tissue of the kidney and the spleen. RBC count and WBC count were found to be higher in H. fossilis and C. gariepinus than other groups of teleosts due to their active predacious nature. Hb values were high in 2nd group (Perciformes) consisting of A. testudineus and C. striatus by virtue of their possessions of accessory respiratory organs. PCV, MCV and MCHC were significantly (p<0.05) increased in three groups of teleosts during acclimation and values were high in second group of consisting of A. testudineus and C. striatus. MCH was higher in 3rd group of fishes consisting of L. rohita and C. carpio
Effects of different sub-lethal concentrations of plasticizer-Diethyl phthalate on Fresh water murrel, Channa striatus (Bloch)
In the present study, effects of exposure to different sub lethal concentrations of diethyl phthalate on hematological, biochemical and histological parameters of fresh water murrel, Channa striatus were evaluated. LC50 of DEP was determined and was found to be 70ppm for the present study. The experimental fishes were divided into control and DEP exposed groups. DEP exposed fish species were subjected to 0.4 ppm, 4 ppm and 40ppm concen-trations of DEP and observed after an interval of 7, 14 and 21days. Exposure to sub lethal levels of DEP revealed significant decrease in haematological parameters due to anemic condition induced by impaired haem synthesis. Exposure to DEP caused reduction in level of protein in muscle (*182.5, *180.7, *176.7, *176.1, *173.4,*167.5 and *165.7) and liver (*104.7, *98.6, *92.7, *87.7, *87.4, *86.4, *80.8, *75.6 and*68.6) due to impairment of protein synthesis. Levels of cholesterol in muscle and liver of DEP exposed fish were found to be decreased after treatment indicating either an inhibition of cholesterol biosynthesis in liver or reduced absorption of dietary cholesterol. Histo-pathological examination of liver of DEP exposed fish species showed necrosis in hepatocytes and cytoplasmic vacuolization. Histoarchitecture of kidney of DEP exposed fish species revealed shrinkage of glomeruli, glomerular distortion, vacuolization of tubular cells, necrosis and atrophy of renal tubules. As an endocrine disruptor, DEP interferes with the haematopoietic system metabolic machinery and histoarchitecture of organs of Channa striatus
Colorectal cancer screening of high-risk populations: A national survey of physicians
<p>Abstract</p> <p>Background</p> <p>The incidence of colorectal cancer can be decreased by appropriate use of screening modalities. Patients with a family history of colon cancer and of African-American ethnicity are known to be at higher risk of developing colorectal cancer. We aimed to determine if there is a lack of physician knowledge for colorectal cancer screening guidelines based on family history and ethnicity. Between February and April 2009 an anonymous web-based survey was administered to a random sample selected from a national list of 25,000 internists, family physicians and gastroenterologists. A stratified sampling strategy was used to include practitioners from states with high as well as low CRC incidence. All data analyses were performed following data collection in 2009.</p> <p>Results</p> <p>The average knowledge score was 37 ± 18% among the 512 respondents. Gastroenterologists averaged higher scores compared to internists, and family physicians, <it>p </it>= 0.001. Only 28% of physicians correctly identified the screening initiation point for African-Americans while only 12% of physicians correctly identified the screening initiation point and interval for a patient with a family history of CRC. The most commonly cited barriers to referring high-risk patients for CRC screening were "patient refusal" and "lack of insurance reimbursement."</p> <p>Conclusions</p> <p>There is a lack of knowledge amongst physicians of the screening guidelines for high-risk populations, based on family history and ethnicity. Educational programs to improve physician knowledge and to reduce perceived barriers to CRC screening are warranted to address health disparities in colorectal cancer.</p
Componential Analysis of the Cultural Terms in the Bilingual Short Story Entitled Mati âSalah Patiâ and Its Translation âthe Wrong Kind of Deathâ
This research aims at identifying the cultural terms in the bilingual text Mati âSalah Patiâ and its translation âThe Wrong Kind of Deathâ. Futhermore this research also discusses about componential analysis of Balinese cultural term and its translation to English from foreign point of view. The componential refers to the description of the meaning of words through structured sets of semantic features, which are given as âpresent (+)â, âabsent (-)â or âindifferent with reference to feature (+/-)â. This research used descriptive qualitative method since the objectiveness of this research is closely related to identifying and describing the result of the analysis. The data source of this research was taken from a bilingual short story entitled Mati âSalah Patiâ, written by Gde Aryantha Soethama and its translation entitled âThe Wrong Kind of Deathâ translated By Jennifer Lindsay. The result of the analysis shows that componential analysis in translation is the basic comparison of a source language word with a target language word which has a similar meaning, but not an obvious one-to-one equivalent, by demonstrating first their common and then their differing sense components. From the four basic types of semantic features, there are two types of semantic features can be found in this study, those are object element and event element. Componential analysis also shows that no word has the exactly same feature and same meaning, it is depend on the culture of the communit
Analysis Of The Influence Of Continuous Training Development And Education On Professional Competence Of Teachers In Public Schools
The purpose of this study is to determine if teacher professional competence may be increased via education and training. A random lottery was employed to choose a sample of 100 instructors for this study. Data analysis and data visualization are provided through summaries and formulations in numerical form since descriptive statistical methods were used to process the data collected through surveys and document studies. Validity and reliability testing may be used to assess the requirements for the study, and basic linear regression analysis techniques can be used to evaluate the data and generate hypothesis judgments. A correlation value of 0.6 was found based on data processing with the SPSS, and the contribution of variable H0 is rejected as the sig value is less than 0.03, as determined using probability procedures. Thus, it can be inferred from these two approaches that training and education have an impact on raising the professional competence of teacher
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Hashtags Functions in the Protests Across Brazil
In this article, we discuss the communicative functions of hashtags during a period of major social protests in Brazil. Drawing from a theoretical background of the use of Twitter and hashtags in protests and the functions of language, we extracted a sample of 46,090 hashtags from 2,321,249 tweets related to Brazilian protests in June 2013. We analyzed the hashtags through content analysis, focusing on functions, and co-occurrences. We also qualitatively analyzed a group of 500 most retweeted tweets to understand the usersâ tagging behavior. Our results show how users appropriate tags to accomplish different effects on the narrative of the protests
Types and outcomes of pharmacist-managed travel health services: A systematic review
Background and aim: Pharmacists have an important role in providing travel health services and medications to travelers. However, given the limited literature on this topic, the aim of this study is to systematically review the types and outcomes of pharmacist-managed travel health services.
Methods: A comprehensive literature search was performed in four electronic databases, namely Scopus, Web of Science, PubMed and ProQuest to identify studies published in English from 1999 to July 2022. The inclusion criteria included the studies that reported an experience of providing dedicated travel health services by pharmacists and reported the outcomes and/or evaluation of these travel health services.
Results: Nine studies were identified from the literature and included in the review. The pharmacists have provided a wide range of general and specialized travel health services including pre-travel risk assessment, routine and travel-related vaccination service, prescribing or recommending medications for travel-related illnesses, counseling and travel health advice. Overall, 94â100% of the patients were satisfied or very satisfied with pharmacist-managed travel health services. In addition, a good acceptance rate of pharmacist recommendations for vaccines and travel-related mediations was reported with most studies reporting an overall acceptance rate of â„75% (acceptance rate range: 48%â94.2%). In addition, high rates of acceptance of other nonpharmacological advices were noted.
Conclusion: Pharmacists with training in travel medicine have successfully provided a wide range of general and specialized travel health services. Most travelers were highly satisfied with the pharmacy-based travel health services and accepted the pharmacist recommendations
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