216 research outputs found

    Solar energy based impedance-source inverter for grid system

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    In this work, the fickleness of solar energy can be overcome by using Maximum Power Point Tracking algorithm (MPPT). Perturb and Observation (P&O) MPPT algorithm accomplish fast the maximum power point for rapid change of environmental conditions such as irradiance intensity and temperature. The MPPT algorithm applied to solar PV system keep the boost converter output constant. Output from boost converter is taken to three phase impedance-source inverter with RL load and grid system. Impedance-source inverter performs the transformation of variable DC output of the solar PV system in to near sinusoidal AC output. This near sinusoidal AC output consecutively is served to the RL load first and then to grid system. The simulation is carried out in matlab/simulink platform both for RL load and grid system and the simulation results are experimentally validated for RL load arrangement only

    A Quasi Experimental study to evaluate the Effectiveness of Reminiscence Therapy on Depression among Elderly in Selected Old Age Homes at Madurai

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    INTRODUCTION: The old age is an integral part of human life. It is the evening of life. It is unavoidable, undesirable, unwelcome and problem ridden phase of life. But it is really interesting to note that everybody likes to live a long life, but not to be old. It is ironical that however undesirable the old age that is bound to life. A man is compelled to go through the pains and pleasure of this age as like other phases in life, before making exit from this mortal world. Reminiscence therapy for depression consists of recollecting of past life experiences which implicates the principles of cognitive therapy. However there are inherent difficulties in assuming from these studies that reminiscence therapy for depression is an effective treatment with the general adult population. Research hypotheses were formulated to find the significant difference between control and experimental group. The review of literature was done and organized based on Studies related to ageing and level of depression among geriatrics. Studies related to effectiveness of reminiscence therapy on the level of depression among geriatrics. The conceptual framework of this study was based on Widenbach’s helping art clinical nursing theory. OBJECTIVES: 1. To assess the pretest and posttest level of depression among elderly in both control and experimental groups. 2. To compare the pretest and posttest level of depression scores among elderly in experimental and control groups. 3. To determine the effectiveness of reminiscence therapy on depression among elderly by comparing the post test scores between control and experimental groups. 4. To find out the association between pretest level of depression among elderly with selected demographic variables in both experimental and control groups. METHODOLOGY: The research design adopted for the study was quasi experimental nonequivalent control group design. The study was conducted at selected Geriatric home, Madurai. The samples selected were 64, of which 31 samples were allotted in the experimental group and the remaining 33 were in the control group. The samples were recognized based on the inclusion criteria and picked up with Non probability – purposive sampling technique. Yesavage geriatric depression scale was used as a tool for data collection after confirming the validity and reliability. Reminiscence therapy was demonstrated to the experimental group only for 21 days in both morning and evening. The data obtained were analyzed and interpreted using descriptive and inferential statistics. RESULTS: ❖ Regarding the pretest level of depression among elderly in experimental group, 31 (100%) had mild depression and in posttest 5 (14.2%) had mild depression and rest of them falls in normal. ❖ Regarding the pretest level of depression among elderly in control group, 33 (100%) had mild depression and post level of depression level of depression among elderly in control group 33 (100%) had mild depression. ❖ Comparison of pretest and posttest level of depression mean scores among elderly in experimental group using paired ‘t’ test revealed that the ‘t’ value was 5.307 which showed a statistical significance at p<0.001 level. It was inferred that the reminiscence therapy was significantly effective in decreasing the level of depression among geriatrics. ❖ The comparison of mean post test score of level of depression among geriatrics between experimental and control group using unpaired ‘t’ test revealed that the ‘t’ value was 22.25 which showed a statistical significance at p<0.001 level. It was inferred that the reminiscence therapy was significantly effective to decrease the level of depression among elderly in experimental group. ❖ The chi square test revealed that there was significant association between pretest level of depression among elderly with the selected demographic variables like gender (p=0.0102), marital status (p=0.0051) and any medical illness (p=0.0012) in experimental group and control group and remaining was not associated with demographic variables at p < 0.05 level. CONCLUSION: Reminiscence therapy is a non-pharmacological psychosocial intervention for the treatment of depression. The study results revealed that, there is significant difference on the level of depression among elderly in experimental and control group. The study concluded that reminiscence therapy will decrease the level of depression and enhances comfort in elderly

    Number of embryos for transfer following in vitro fertilisation or intra-cytoplasmic sperm injection

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    Acknowledgements: We would like to thank the following for their contributions to the 2020 update. All staff at the editorial base of the Cochrane Gynaecology and Fertility Review Group; and in particular, Helen Nagels (Managing Editor) and Information Specialist Marian Showell, for help with the literature searches. Drs Jeanette MacKenzie, Evi Vogiatzi and Rik van Eekelen who provided peer review comments. We also thank all the authors who replied to our email queries about their study: Dr Elisabet Clua, Dr Maria Luisa López‐Regalado and Dr OM Abuzeid. We also thank the following. Zabeena Pandian, who was the lead author of the original review and two subsequent updates. Other co‐authors for their contribution in the previous versions: Allan Templeton, Ozkan Ozturk, Gamal Serour, and Jane Marjoribanks. Statistician Andy Vail (University of Manchester University, UK) for methodological advice.Peer reviewedPublisher PD

    QUERY ANALYSIS FOR TWO-LEVEL SENSOR TOPOLOGIES WITH DATA PROTECTION AND RELIABILITY

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    The storage nodes, which act as an intermediate layer between the sensors and the sink, can be hacked, allowing attackers to learn sensitive data and process query results.Privacy and integrity were the cornerstones of the application of sensor networks with two levels. Prior schedules for secure query processing are weak because they reveal very little information, so attackers can estimate statistical data based on domain knowledge and the date of query results. In this study we propose the first top-k query processing system that protects the privacy of the sensor data and the integrity of the query results. To maintain privacy, we build an index for each data element collected by the sensor using a semi-random hash function and Blom filters and converting top-k queries to queries in the upper range. To maintain integration, we propose that the data partition algorithm divide each data element into a time interval and associate the partition data with the data. The attached information ensures that the repository can verify the integrity of the query results. We officially show that our software is protected under the IND-CKA security model. Our empirical results from real-life data show that our approach is rigorous and practical for large network size

    Anti-Theft Protection of Vehicle by GSM GPS with Fingerprint Verification

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    This paper focuses on preventing car theft using microcontrollers and GSM modules. We are generating the results with better accuracy and proficiency. It can be helpful to those people who want better and more advanced security in their vehicle

    Generation of Phenothiazine with Potent Anti-TLK1 Activity for Prostate Cancer Therapy

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    Through in vitro kinase assays and docking studies, we report the synthesis and biological evaluation of a phenothiazine analog J54 with potent TLK1 inhibitory activity for prostate cancer (PCa) therapy. Most PCa deaths result from progressive failure in standard androgen deprivation therapy (ADT), leading to metastatic castration-resistant PCa. Treatments that can suppress the conversion to mCRPC have high potential to be rapidly implemented in the clinics. ADT results in increased expression of TLK1B, a key kinase upstream of NEK1 and ATR and mediating the DNA damage response that typically results in temporary cell-cycle arrest of androgen-responsive PCa cells, whereas its abrogation leads to apoptosis. We studied J54 as a potent inhibitor of this axis and as a mediator of apoptosis in vitro and in LNCaP xenografts, which has potential for clinical investigation in combination with ADT. J54 has low affinity for the dopamine receptor in modeling and competition studies and weak detrimental behavioral effects in mice and C. elegans

    Review on various Pharmaceuticals and their Pharmacology of Anti-repellents- As a Preventive aspect of Vector (mosquito species) borne Disease

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    Mosquito is one of the most vexing bloodsucking insects. Malaria, Filariasis, Japanese Encephalitis, Dengue fever, Yellow fever, Chikungunya, and Zika are all transmitted by mosquito species belonging to the genera Anopheles, Culex, &amp; Aedes. Mosquitoes alone infect almost 700 million people each year, resulting in one million fatalities. Malaria, which is caused by Plasmodium parasites and transmitted by female Anopheles mosquito bites, is still a substantial illness that impacts the development of infants and&nbsp;kids. Present review work aims to review various pharmaceutical dosage forms of anti-repellent products and their molecules, mechanism of repellent activity as a preventive of different vector bone diseases. Malaria cases were over 207 million in 2012, with 627,000 deaths reported. In addition, Yellow fever, which is spread by the Haematologus and Aedes mosquitoes, causes 200,000 instances of disease and 30,000 fatalities worldwide each year. Dengue fever is spread by Aedes aegypti and Aedes albopictus mosquitos, which are responsible for more than 100 million infections yearly. Furthermore, more than 2.5 billion individuals, or about 40% of the world's population, are now in danger of contracting Dengue fever. This review helped to understand the various kinds of vector bone disease and the surveillance of disease data. In addition, the review revealed the various pharmaceutical products would help control the Mosquitoes bits and related disease as preventive aspects and the components of pharmaceutical and their mechanism of action to inhibit the spread of various insects’ related disease

    Comparative Analysis of Rotation Invariant Pattern and Uniform Pattern in MMLBP Technique for Face Recognition

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    Recognizing humans based on one or more physical or behavioral traits is referred as Biometrics. Comparing to the traditional methods to authenticate persons, biometric plays a vital role in the area of human recognition. In the field of biometric, face and palm print recognition seeks more attention for the researchers. The failure of recognition is minimum and also the implementation is easier than more other techniques. In this paper we concentrated on face recognition with Local Binary Pattern(LBP), it is simple and fast to recognize face than more other algorithms. Uniform LBP is used to extract features to recognize the face to authenticate the persons. The “non-uniform” patterns are clustered into one pattern due to this lot of information lost. In order to overcome the heavy data which loss in non-uniform patterns a modified multi-scale LBP histogram algorithm is proposed. Hence, the useful non-uniform information is utilized without any training step with entire information without any data loss. We also compare the mapping methods, rotational invariant pattern and uniform with rotational invariant patterns and .hence evaluate the performance of the mapping methods
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