Analysis on digital implementation of sigma-delta adc with passive analog components

Sigma-Delta (SD) analog to digital converters (ADCs) have several advantages over the nyquist rate type ADCs. The linearity over high dynamic range makes the SD ADCs an ideal choice for voice and precise instrumentation applications. The SD-ADC architecture is well established and analyzed [5, 6]. It is heavily based on digital processing and provides a high resolution, low noise output with very low analog implementation effort. The technique of sigma delta ADC is in practice from several decades. The feature of digital dominated design of SD-ADC makes it different from other types of ADCs. As the technologies are evolving, new realization methodologies are emerging for realizing SD-ADC. The conventional approach of realizing an ADC as a separate ASIC and providing the interface to digital IC (either Microprocessor or FPGA) for providing mixed signal processing platform has following limitations.

P.a. harsha vardhini

Public knowledge, attitudes and practices related to eye diseases in southern indian population

Background: This study was conducted to determine the level of the public knowledge, attitudes and practices related to common eye diseases in the southern Indian population. Methods: A cross sectional population-based survey used a semi structured questionnaire on awareness, knowledge, attitude and practices related to eye diseases. Stratified multistage cluster random sampling method was used with a sample size of 867 adults >16 years based on, estimated awareness of cataract 70%, assuming an expected rate of 85%, design effect of 1.5, margin of error 4% with 95% confidence interval with 25% from urban areas and 75% from rural areas. A pilot study was conducted to validate the questions used in the main study. SPSS (version 19) used for analysis. Results: A total of 782/867 (90.1%) subjects participated in the survey, with females 47.4%. Awareness of major eye diseases for cataract 81.5%, glaucoma 47.8%, refractive error 74.3%, squint 89.0%, diabetic retinopathy 65.0% and age-related macular degeneration 36.7% respectively. 41.8% subjects reported wearing glasses either for distance, near or for both. Of the 777 subjects only 294 people underwent an eye examination by an ophthalmologist in the last two years (37.8%). 57.5% subjects had knowledge of the nearest eye care facility within five kilometers of their residence. Electronic media were the major source of information on eye health. Conclusions: Though the awareness levels of common eye diseases were quite high, the knowledge of cataract (10.4%) was poor. There is a need to increase the level of awareness for eye diseases like glaucoma and age-related macular degeneration.

srinivasa reddy pallerla Srinivasa reddy pallerla

Épuisement des réserves et conflits fonciers inter-collectivités dans l’ouest de la région des savanes au nord-togo

L’émergence des territoires et l’épuisement des saltus stimulent des questions foncières longtemps restées en veilleuse. Au T ogo en général et spécifiquement dans l’Ouest de la Région des Savanes, la terre est une propriété privée des lignages. Le droit foncier y repose sur la prééminence du droit du premier occupant et matérialisé par une divinité appelée Tingban. L’insuffisance des preuves de prééminence et l’authenticité des fétiches, source de droit, opposent souvent les collectivités. La présente étude décrit l’épuisement des ressources foncières et analyse les conflits fonciers qui opposent les collectivités dans l’Ouest de la Région des Savanes. La méthodologie adoptée repose sur l’observation participante, la recherche documentaire et les entretiens. Les résultats révèlent de nombreuses disputes socio-foncières qui opposent les lignages, les villages et les cantons. Les collectivités contestent entre elles, les droits de paternité sur les terres dans 74% des cas alors que 26% des querelles foncières sont dus aux remises en cause des limites des propriétés collectives. Ces contestations plongent leurs racines dans la complexité du droit foncier coutumier fondé sur la prééminence du droit du premier occupant. Elles sont aussi liées à la non maîtrise des limites des domaines fonciers lignagers et des territoires cantonaux respectivement par les descendants, les chefs de villages et les chefs de cantons.

Assanvo

Le ventre de l’atlantique de fatou diome : entre oralité et transmission des valeurs identitaires africaines à travers la figure de la femme

La lecture de toute production romanesque signée d’une Africaine, laisse souvent transparaître a priori l’idée qu’elle évoque la victimisation de la femme par la gent masculine. Mais, à certain niveau, l’univers de sa fiction n’affiche pas de façon catégorique ou formelle cette question. Tel est le cas de Fatou Diome avec son roman en cours de décryptage. Le but de cet article est de montrer que l’auteure construit son texte autour de plusieurs facettes pour assurer la transmission des valeurs identitaires et que le choix de certains genres oraux et l’évocation de la problématique de genre (homme-femme) offrent des concepts qui servent à exprimer des faits propres à l’identité culturelle africaine. À partir d’une analyse thématique et sociocritique, nous comprenons qu’elle adosse insidieusement à ce thème la problématique de l’identité. Ce, à partir de plusieurs artifices littéraires qui sont entre autres le potentiel oral traditionnel du terroir et le discours revalorisant la femme, par ricochet l’identité africaine.

Assanvo

Work-life balance and teacher engagement in private senior secondary schools in rivers state, nigeria- obasi, k. k. and adieme, f. g.2021

This study examined work-life balance and teacher engagement in private secondary schools in Rivers State. Three research questions and three hypotheses guided the study. The study adopted a correlation research design with a population of 7,143 teachers (2,676 males and 4,467 females) in all the 275 private secondary schools in Rivers State. The sample size of 714 teachers was drawn through a proportionate stratified random sampling technique, which represents 10% of the population. Two self-designed instruments entitled: “Work-life Balance Questionnaire (WLBQ)” and “Teacher Engagement Questionnaire (TEQ)” were used for data collection. The instruments were in two sections –A and B. Section A consisted of the demographic factors while Section B contained the variables that were used to elicit information from the respondents. Section B contained 20 items on Work-life Balance and 15 items on Teacher Engagement respectively. Face and content validities were ensured by experts in the relevant areas. The Cronbach’s Alpha reliability method was used to establish the internal consistency, and indexes of .79 for WLBQ and .83 for TEQ were established respectively. Research questions 1 and 2 were answered using simple regression while research question 3 was answered using multiple regression. Hypotheses 1 and 2 were tested with a t-test associated with simple regression while hypothesis 3 was tested using ANOVA associated with multiple regression at 0.05 alpha level. The findings of the study revealed, among others, that work-life balance significantly and jointly predicted teacher engagement to a very low extent in secondary schools in Rivers State. Based on the findings, it was recommended, among others, that both employers and school managers should create flexible work environments that promote work-life balance for teachers so as to motivate them to perform optimally for the attainment of educational goals.

FXintegrity Publishing Fxintegrity publishing

Phytochemical evaluation and pharmacological screening of antiparkinson’s activity of allium sativum in swiss/albino mice

Abstract: Objective: To evaluate the Antiparkinson activity of Allium sativum in Haloperidol induced Parkinson‟s disease in mice. Method: Parkinson‟s disease was induced by administering haloperidol (2.0 mg/kg i.p.) Daily for a week. The mice were divided into 5 group (n=6). Group II received haloperidol (2mg/kg body weight).Group III received combination of levodopa and carbidopa (100mg+ 10mg/kg by i.p along with haloperidol) and Group IV and V received Allium sativum extract (200 and 400mg/kg by p.o), respectively for 7 days along with haloperidol. To evaluate the antiparkinson effect of Allium sativum, catalepsy bar test, rotarod test, hang test and horizontal bar test were used. One way ANOVA was used to test statistical significance followed by Bonferroni multiple comparison tests .Results: Allium sativum extract (200 and 400mg/kg by p.o) was found to decrease the duration of catalepsy significantly (P<0.001) in catalepsy bar test as compared to haloperidol group, and significantly increases (P<0.001) fall off time in, rotarod test, hang test and horizontal bar test respectively as compared to haloperidol group. Conclusion: The result of the present study conclusively shows the Antiparkinson‟s activity of Allium sativum in haloperidol induced Parkinson‟s disease in mice.

Zeenath Banu Zeenath banu

Awareness and knowledge about refractive errors and strabismus in south indian population

Background: To assess the awareness, knowledge about refractive errors and strabismus among the general public in southern Indian states of Andhra Pradesh and Telangana. Methods: A cross sectional population-based survey used a semi structured questionnaire on awareness, knowledge on refractive errors and strabismus done as part of knowledge, attitude and practices study (KAP). Stratified multistage cluster random sampling method was used with a sample size of 867 adults- ≥16 years. Having heard of refractive error and strabismus was defined as awareness and having knowledge of the type of error for which spectacles were worn, was considered as knowledge. A pilot study was conducted to validate the questions used in the main study. Statistical package SPSS (version 19) was used for analysis to calculate logistic regression and odds ratios for gender, age, education and urban-rural areas. Results: A total of 782/867 (90.1%) subjects participated in the survey with females 47.4%. 581 subjects (74.3%) were aware of refractive error. 690 subjects (88.2%) were aware of squint. With multiple logistic regression about awareness of refractive error to various variables, subjects who were educated 11th class to degree had a higher awareness (OR: 2.40; CI: 1.25-4.60). With multiple logistic regression about awareness of squint to various variables, females had a higher awareness of squint (OR: 1.98; CI: 1.19-3.31). Conclusions: Awareness of squint and refractive error was high among the general public, but the knowledge of it was limited.

srinivasa reddy pallerla Srinivasa reddy pallerla

Assess the prevalence of polycystic ovarian syndrome among adolescent girls.

World Health Organization (WHO) estimation disclosed over 116 million girls (3.4%) area unit stricken by PCOS worldwide. The predisposing risk factors embrace genetic science, system, lifestyle/environment, fatness that contributes to the event of PCOS. it's calculable that between 5 to ten % of U.S. girls of childbearing age have PCOS. that is regarding five million girls, which makes the condition one among the foremost common secretion endocrine disorders among girls of generative age. A study to assess the prevalence of PCOS among adolescent women at hand-picked setting, Chennai. Objective: to assess the prevalence of PCOS among adolescent women. Methodology: A non-experimental descriptive analysis style was adopted during this study. The non-probability convenient sampling technique was accustomed choose the sample size of two hundred adolescent Girls. The assessment of the prevalence of PCOS was administrated employing a self-reported check list through a Googletype. A survey link was sent to the respondents, via email and WhatsApp& teams. knowledge was analyzed by descriptive and inferential statistics. Result: our Majority (36.5%) of the samples had gentle & moderate PCOS symptoms and twenty-sevenths had severe symptoms. relating to physical activity, the bulk (38%) of the samples had gentle physical activity, thirty-fourth had moderate physical activity and twenty-eighth had severe activity. There was a direct correlation between PCOS symptoms and Physical activity. There was a statistically vital relationship between PCOS symptoms with age, religion, academic standing, dietary habits, previous information, supply of data, the cycle of emission and BMI and there was a statistically vital relationship between physical activity with age, Religion, academic standing, monthly family financial gain, age at the time of start, previous information, supply of data, variety of family, Cycleof emission & BMI. Conclusion: PCOS among adolescents is a rising problem that wants careful assessment, timely intervention, and appropriate treatment. Diagnosis of PCOS in adolescence remains a challenge attributable to overlapping symptoms of PCOS with traditional time of life changes in adolescents. life-style modifications for weight reduction and dietary modifications and psychological content plays vital role in these young ladies for preventing long run complications. Keywords: Poly cystic ovarian syndrome (PCOS), Prevalence, PCOS symptoms, Physical activity, Adolescent Girls.

Elsi Queen Elsi queen

The community radio in kashmir, a way forward

In India, the campaign to legitimise community radio began in mid-1990s, soon after the Supreme Court of India ruled in its judgment of February 1995 that “airwaves are public property. Though the approval for setting up of Community radio stations in India was granted in 2002, it is yet to develop in the valley of Kashmir. Till now, the valley has not established any community radio station, but the first effort to use radio for the development of the community was made in 2009 when Panos South Asia, in collaboration with the Islamic University of Science and Technology (IUST), a rural University in Awantipora (Kashmir) started a community radio program in the Awantipora community. The program named “Pesh Kadam” meaning “Step Forward” started in 2009 and completed 350 episodes in 2018. This paper is aimed to study the reasons for absence of community radio stations in Kashmir. It also documents the efforts made to bring this medium to Kashmir and understand the evolution and challenges of first ever community radio program in Kashmir, study its content, analyse its popularity and efficacy. Both qualitative and quantitative research techniques are deployed in this study.

Ruheela hassan

Study of an effective way of detecting unexpected permission authorization to mobile apps

The recent boom in Android mobile device usage has caused a shift in the information technology and has affected the way how information and data are stored, shared among the mobile users. The advent of social networking applications also demands the availability of resources that can be shared among the authentic users. This paper reviews and compares the available techniques and solutions for detecting Unexpected Permission Authorization to Mobile Apps. It is observed that malware for the android system is also growing significantly, current solutions for detecting malware on smartphones are still ineffective.

Manisha patil Manisha patil

University life in an era of disruption of covid-19: a meta-methods and multi-mixed methods research study of perceptions and attitudes of south african students

On 18 March 2020, all South African universities and colleges were closed due to the COVID-19 virus. By early April, 10 universities announced that they were planning to resume teaching and learning online, including the University of the Witwatersrand (i.e., Wits University), Johannesburg, which is the joint highest ranked university in Africa. Therefore, the purpose of this editorial was to examine the perceptions and attitudes of these students regarding online learning in an era of disruption of COVID-19, uniquely using both multi-mixed methods research approaches (i.e., involving the partial integration of multiple methods research approaches and mixed methods research approaches) and meta-methods study approaches (i.e., involving the full[er] integration of multiple methods research approaches and mixed methods research approaches). A total of 4,419 Wits University students completed an online survey. A principal components analysis of one of survey’s scales, namely, the Attitude of Students Towards COVID-19 and its Impact on Higher Education scale, revealed 2 subscales, namely, Students’ Self-regulation Towards COVID-19-Based Higher Education and Attitudes Toward Teaching, Learning, and Assessment in COVID-19-Based Higher Education. Nonparametric analyses revealed that scores on these measures discriminated gender, age group, level of student (i.e., undergraduate vs. postgraduate), locality status (i.e., local vs. international student), and registration status (i.e., full-time vs. part-time). A multiple analysis of the open-ended responses by the VOSviewer 1.6.14 text mining software program led to the identification of 6 metathemes. Similarly, WordStat 8.0.29 topic modeling yielded 5 metathemes that mapped onto VOSviewer’s 6 metathemes, indicating triangulation of findings. A sentiment analysis revealed negative sentiments that identified not only the biggest challenges for students but also the characteristics of students who experience these challenges. Finally, a cluster analysis, combined with chi-square analyses, led to the identification of 4 clusters of students who differed with respect to their attitudes and online experiences. Implications of these findings are discussed.

Dr Emmanuel Ojo Dr emmanuel ojo

Intersection of caste and gender based subjugation

One of the unique features of Indian society is prevalence of caste system which was originated thousands of years back to demarcate the people engaged in different occupation or jobs. Initially it was not much rigid but gradually people belonging to upper castes for their own selfish means to maintain their monopoly made this arrangement hereditary and started treating people of lower castes disgracefully. For preservation of this system, people started controlling their women to prevent inter-caste marriages and the concept of endogamy came up. This robbed away many types of freedom from women. For women belonging to lower castes, this situation is worse as they are doubly subjugated on the basis on caste as well as gender. Men belonging to their own caste treat them as secondary beings. This paper throws light on this intersection. How intersection of these two kinds of inequalities place them at the lowest position in Indian society. Dr. B.R. Ambedkar rises as their leader who all his life worked for empowerment of downtrodden section of society. He argues that education is the primary tool for evading these differences among people. He further emphasizes to adopt the concept of exogamy to break the backbone of Indian caste system and to immediately leave a religion or culture which legitimizes such system of inequality among people of the same land.

Swati sharma

Study of temperature variation in human peripheral region during wound healing process due to plastic surgery

In this paper, investigations are made to analyze the human body temperature during wound healing process due to surgery. Wound is considered after the skin graft. Skin graft is a technique used in plastic surgery. Skin is the first line of defense between the human and environment, it is very susceptible to damage. Internal body or core temperature (Tb) is one of the clinical vital signs along with pulse and respiratory rates. Any disturbance in body temperature will drive complexities in wound healing process. These studies are important in the mechanism of establishing the limits of thermal regulation of human body during the healing process in different situations and conditions. The Finite element method is used to analyze tissues temperature for normal tissues (donor site) and abnormal tissues (tissues after surgery). Appropriate boundary conditions have been framed. Numerical results are obtained using Crank Nicolson Method.

Manisha jain

Social skills development and educational outcome of special need students in special and inclusive settings

Lack of development of adequate social skills of special need students results in many disruptive behavior and poor academic gains. School setting is also an indicator of rise in academics and learning of social skills. The purpose of the current study was to investigate the social skills development and educational outcomes of special need students attending special and inclusive settings. Only 110 visually impaired students (60 from special and 50 form inclusive school setting) represent as special need children who participated as sample of the study. Data were collected from 5 Special Schools for Visually Impaired and 5 Inclusive Schools located in Delhi and NCR. Hindi Version of the Matson Evaluation of Social Skills with Youngsters: Self-rating form (MESSY) by Sharma (2000) was used to assess social skills development and to measure the educational outcome, aggregate percentage marks obtained by the students in their previous year‟s annual examination were collected from the records of the schools. Hypotheses formulated for this study were verified by applying appropriate statistical techniques- Mean, Standard Deviation and t-test. Significant differences found in the development of social skills and educational gains of the special need children in special vs. inclusive settings. Inclusive setting, to a great extent provides conducive learning environment and platform to develop social skills. Results of the study recommend implications for special and normal children, teachers and administrators.

Rubul Kalita Rubul kalita

Structural geological atlas

This book presents more than 600 eye-catching structural geological photographs and explanatory descriptions, from different Indian terrains. This book will enable easy identification of deformation features, one of the most important tasks in structural geology at the meso- and micro-scales.

Rajkumar Ghosh Rajkumar ghosh

A comparative financial study on selected companies in automobile industry in india

India’s automobile industry is the fourth largest automobile industry in the world. The researcher selected the automobile companies of 2 and 3 wheelers based on group A companies listed in the Bombay Stock Exchange. The selected automobile companies are Bajaj Auto ltd, Eicher Motors ltd, Hero MotoCorp ltd and TVS Motor Company ltd. The main target of this analysis is to compare the financial positions of the selected automobile companies for the time of a long time from 2016-2020. This study proved that financial position of Eicher Motors ltd financial position is superior to other selected automobile companies. Current ratio, quick ratio, debt-equity ratio, net profit ratio, return on assets ratio of Eicher Motors ltd is better than other selected automobile companies.

Dr. Jeyalakshmi P Dr. jeyalakshmi p

Assessment of drug prescribing pattern and prescription errors in elderly patients

The rate of aging is rapidly increasing and the term of geriatric refers to offer a medical care to elderly people. Drug consumption study on geriatric population is a vital issue since this group is totally neglected in Libya. The aim of this study was to assess drug utilization pattern among elderly patients in terms of world health organization core prescribing indicators and to evaluate the treatment cost. A total of 106 prescriptions were randomly collected from different community pharmacies located in Tripoli during the summer 2019, and were evaluated (total number of prescribed drugs is 359) for their clinical efficacy and safety. The findings revealed that 60 drugs acting on GIT (16.7%), 50 antimicrobial drugs (13.9%), 31 antihypertensive drugs (8.6%) and 30 drugs for respiratory diseases (8.4%) were prescribed to patients who are 65 years old or more. With regard to disease pattern in the elderly Libyan patients, 27 drugs were prescribed for diabetes mellitus (7.5%), 24 drugs for cardiovascular drugs (6.7%) and 14 drugs for anti-hyperlipidemia (3.9%). According to the WHO core drug use indicator pattern, the average number of drugs prescribed per encounter was 3.3. Prescription by generic name was low (41.5%). Antibiotics were 36.8% while injections were 26.6%. Thus, this study suggest that geriatric medicine and rational drug use should strongly be implanted in medical schools and teaching hospitals. Besides, a drug pattern use of the Libyan community is urgently required to avoid drug prescribing errors.

Fathi M. Sherif Fathi m. sherif

Analysis of poverty and poverty alleviation measures and information technology: the case of jordan

This study reviews indicators of poverty and the government policies and strategies to reduce and alleviate poverty in Jordan and investigate the effects of information technologies (ITC) on the poverty in Jordan, Population growth rate, GDP at current prices, consumer price index, and human development index in addition to percentage of population use internet, percentage of export and import of ITC of the total trade are used as dependent variables. Data from different resource is collected from 1999 in which the internet started in Jordan till 2018 on the abovementioned variables. The results show that there are negative impacts of the percentage of population using internet on the poverty rate while there are positive effects of human development index and consumer price index on poverty

Iaeme

Kink and periodic solutions to the jimbo-miwa equation and the calogero-bogoyavlenskii-schiff equation

In this article, we form the exact wave solutions of the Jimbo-Miwa equation and the Calogero-Bogoyavlenskii-Schiff equation by applying the new generalized (G'/G)-expansion method. We explained the new generalized (G'/G)-expansion method to look for more general traveling wave solutions of the above mentioned equations. The traveling wave solutions attained by this method are in terms of hyperbolic, trigonometric and rational functions. The graphical representation of the obtained solutions is kink soliton, singular kink soliton, singular soliton and singular periodic solution. This method is very significant for extracting exact solutions of NLEEs which habitually occur in mathematical physics, engineering sciences and applied mathematics.

Md khorshed alam

Ultra high dilution of zinc in the management of refractory parkinson’s disease-a case report

Background: Parkinson’s disease (PD) is one of the most common, disabling neuro-degenerative disorders. The disease has a significant clinical impact on patients, families, and caregivers through its progressive degenerative effects on mobility and muscle control. Available treatments for PD have varied results. Although there are anecdotal reports of improvement with Homoeopathy, there is a dearth of literature concerning usefulness in management of PD Objectives: To assess the usefulness of ultrahigh dilution of Zinc in the management of PD. Methods: A case of PD under standard care and refractory to treatment visited Out- Patient Department and was assessed with and Unified Parkinson’s Disease Rating Scale (UPDRS). As per the classical Homoeopathic guidelines Zincum metallicum 200 was prescribed after Repertorization. Results: UPDRS total score of 112 at baseline turned to 40 at the end of 1 year and 7 at the end of two years, in spite of reduction in the conventional medicines. Patient was on Stage 3 of Modified Hoehn and Yahr staging at the baseline and turned to Stage O in duration of 21 months. SEADL score has turned from 40% to 100%. Conclusion: Homoeopathic medicine Zincum met. is a valuable adjuvant in the management of Parkinson’s disease.

Dr deepthi gilla

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