Speed Control of DC Motor using Pid Controller Based on Matlab

This paper is to design PID controller to supervise and control the speed response of the DC motor and MATLAB program is used for calculation and simulation PID controllers are widely used in a industrial plants because of their simplicity and robustness. Industrial processes are subjected to variation in parameters and parameter perturbations. We are choosing PID parameters and discussed Key words: DC motor, PID controller, MATLAB representatio

Sero-epidemiology of toxoplasmosis and associated risk factors among antenatal women in Ranchi, Jharkhand, India

Background: Toxoplasmosis seroprevalence in antenatal women has remained a contentious issue in Indian subcontinent. Bad obstetric history (BOH) is specific to women of childbearing age and can be caused by infection with Toxoplama gondii. In Jharkhand, scarce data exist for the roles of toxoplasmosis in the aetiology of adverse pregnancy outcome. Aim: To study the sero-epidemiology of Toxoplasmosis and associated risk factors among antenatal women attending antenatal clinic of a tertiary care hospital in Ranchi, Jharkhand, India.Methods: A case-control study was conducted on antenatal women attending antenatal clinic from the June 2010 to May 2011. The study group comprised 102 antenatal women of with BOH while the control group comprised 102 multiparous, age-matched antenatal women without BOH. Latex Slide agglutination test for antibodies to T.gondii was utilized. The research was approved by institutional ethical committee. Descriptive and inferential statistics was applied.Results: The overall seroprevalence of T.gondii among antenatal women was 15.19%, with significantly more in women with BOH (24.50%) as compared to women without BOH (5.88%). The seroprevalence in women with BOH gradually increased with advancing age: 8.33% in age less than 20 years to 50% in women older than 30 years. The seroprevalence increased steadily with number of BOH: 9.67% in women with one BOH to 37.50% in women with three or more BOH. Risk factors like Illiteracy, rural residence, owning a cat and non-veg dietary habit showed significant association.Conclusions: The seroprevalence of toxoplasmosis is high among antenatal women with BOH. Routine serological test is recommended for all pregnant women with BOH

Base Deficit as a Predictor of Mortality in Sepsis and Septic Shock.

Introduction: Sepsis is a common problem encountered in the emergency room which needs to be intervened early. It is always difficult to have the quick prognostic marker of sepsis in busy emergency. So this study was conducted to determine whether base deficit can be used as an indicator of mortality among septic patients in emergency room set up like ours. Methods: It was a hospital-based descriptive cross-sectional study done at Tribhuvan University Teaching Hospital, Kathmandu from March 2018 to December 2018.  Acute physiology and chronic health evaluation II score(APACHE II), Base deficit, Sequential Organ Failure Assessment(SOFA)score on first day of arrival in the emergency room were calculated. The association of 28-day outcome with Acute physiology and chronic Health Evaluation II score, Base deficit value and SOFA score were derived. Results: Out of 229 patients with septic shock 62 died (27%) and among 71 patients without septic shock,12 died(16.9%) .Overall mortality was 24.66 %(n= 74).The area under the ROC curve for Base deficit(0.864;95% C.I.=0.822-0.906), APACHE II( 0.782;95%C.I=0.718-0.848;,SOFA(0.689;95% C.I=0.620-0.757) were greater than 0.7 except for SOFA which signifies these test to  have fair efficacy to predict mortality. Conclusions: High base deficit value predicts mortality in patients with sepsis and septic shock. Keywords: Base Deficit; Sepsis; Septic Shock, Predictor, Mortality DOI: http://doi.org/10.3126/jkahs.v2i2.2516

Higher order antibunching is not a rare phenomenon

Since the introduction of higher order nonclassical effects, higher order squeezing has been reported in a number of different physical systems but higher order antibunching is predicted only in three particular cases. In the present work, we have shown that the higher order antibunching is not a rare phenomenon rather it can be seen in many simple optical processes. To establish our claim, we have shown it in six wave mixing process, four wave mixing process and in second harmonic generation process.Comment: 6 pages, no figure, Latex 2

Inheritance of plumage colour in Japanese quails

A complete 4 × 4 diallel cross involving 4 quail populations, 2 of which possessed Pharao, plumage and other 2, White breasted and White plumage pattern was performed and the plumage colour of progeny in different crosses was recorded. The results indicated dominant nature of White breasted and the recessive nature of White feather colour mutations. The inheritance of plumage colours of Pharao, White breasted and White could be explained on the basis of two autosomal plumage color loci

Clinical Presentation in Chronic Kidney Disease Patients on Regular Haemodialysis Attending in Tribhuvan University Teaching Hospital Emergency Services

Background: Chronic kidney disease is increasing day by day and so is condition of renal replacement therapy; mainly hemodialysis. Emergency visit of the patients under maintenance hemodialysis is frequent. The objective of the study is to study clinical parameters of these patients so that in future these deranged parameters can be focused during patient management and decrease their emergency visit. Methods: A prospective cross sectional study was conducted in emergency services of Tribhuvan University Teaching Hospital from 1st May 2018 to 31st October 2018 among the adult chronic kidney disease patients under maintenance hemodialysis. Ethical approval was taken from Institutional review board, Institute of medicine, TribhuvanUniversity.Nonprobability sampling method was used. Total of 300 patients were enrolled in the study. Patients’ age, sex, causes, laboratory parameter during emergency visit, need of emergency hemodialysis, and need of blood transfusion were studied. Results: Out of total 300 patients, mean age was 45.64 years (S.D =17.15). 190 (63.3 %) were male and 110(36.70%) were female. 152(50.70%) of patients had hypertension. Diabetes and Glomerulonephritis both had equal prevalence of 63(21%). Mean hemoglobin was 6.52gm% (S.D = 1.93). Mean pH was 7.17 (S.D =0.154). Mean serum potassium and creatinine level were 5.77 mEq/L (S.D =0.76) and 1076.03 mmol/l (S.D =367.25) respectively. Area under the Receiver Operating Curve was 0.660 for potassium and 0.598 for serum creatinine. Conclusions: Causes of chronic kidney disease, decreased hemoglobin level, increased serum creatinine and potassium level and metabolic acidosis are causes of frequent emergency room visit among CKD patients.  So these conditions need to be addressed to decrease emergency visit of these patients. Keywords: chronic kidney disease; emergency presentation; mortality. DOI: http://doi.org/10.3126/jkahs.v2i2.2516

Sphincter saving anorectoplasty (SSARP) for the reconstruction of Anorectal malformations

<p>Abstract</p> <p>Background</p> <p>This report describes a new technique of sphincter saving anorectoplasty (SSARP) for the repair of anorectal malformations (ARM).</p> <p>Methods</p> <p>Twenty six males with high ARM were treated with SSARP. Preoperative localization of the center of the muscle complex is facilitated using real time sonography and computed tomography. A soft guide wire is inserted under image control which serves as the route for final pull through of bowel. The operative technique consists of a subcoccygeal approach to dissect the blind rectal pouch. The separation of the rectum from the fistulous communication followed by pull through of the bowel is performed through the same incision. The skin or the levators in the midline posteriorly are not divided. Postoperative anorectal function as assessed by clinical Wingspread scoring was judged as excellent, good, fair and poor. Older patients were examined for sensations of touch, pain, heat and cold in the circumanal skin and the perineum. Electromyography (EMG) was done to assess preoperative and postoperative integrity of external anal sphincter (EAS).</p> <p>Results</p> <p>The patients were separated in 2 groups. The first group, Group I (n = 10), were newborns in whom SSARP was performed as a primary procedure. The second group, Group II (n = 16), were children who underwent an initial colostomy followed by delayed SSARP. There were no operative complications. The follow up ranged from 4 months to 18 months. Group I patients have symmetric anal contraction to stimulation and strong squeeze on digital rectal examination with an average number of bowel movements per day was 3–5. In group II the rate of excellent and good scores was 81% (13/16). All patients have an appropriate size anus and regular bowel actions. There has been no rectal prolapse, or anal stricture. EAS activity and perineal proprioception were preserved postoperatively. Follow up computed tomogram showed central placement the pull through bowel in between the muscle complex.</p> <p>Conclusion</p> <p>The technique of SSARP allows safe and anatomical reconstruction in a significant proportion of patients with ARM's without the need to divide the levator plate and muscle complex. It preserves all the components contributing to superior faecal continence, and avoids the potential complications associated with the open posterior sagittal approach.</p

Tillage-based nutrient management practices for sustaining productivity and soil health in the soybean-wheat cropping system in Vertisols of the Indian semi-arid tropics

To achieve higher crop production in a soybean-wheat cropping system, comprehensive knowledge of soil fertility status and its variability is crucial. However, a significant gap exists between the potential and actual productivity of this system in the Vertisols of Indian semi-arid tropics. Therefore, 2 years of field research were conducted to investigate how different crop management practices affect soil fertility in this cropping system. The trial was conducted using a randomized complete block design (RCBD) with five crop management practices: CAO (conservation tillage + organic nutrient and weed management), CAC (conservation tillage + chemical nutrient and weed management), CTC (conventional tillage + chemical nutrient and weed management), OCT (conventional tillage + organic nutrient and weed management), and PoPs (package of practices). Results showed that CAO significantly (p &lt; 0.05) increased soil organic C (6.8 g kg−1), available N (129.5 mg kg−1), P (11.0 mg kg−1), K (232.6 mg kg−1), Fe (9.17 mg kg−1), and Mn (10.48 mg kg−1) at topsoil (0–15 cm) and deeper layers (15–60 cm). In contrast, CAC had significantly (p &lt; 0.05) higher soil availability of Ca (5,072 mg kg−1) and Mg (901 mg kg−1) and Cu (0.84 mg kg−1). On the other side, PoPs resulted in the highest S (10.05 mg kg−1) and Zn (0.85 mg kg−1) availability in the topsoil. Our results evidently suggested S and Zn availability as key indicators of soil health sustenance in the present agroecosystem. Notably, CAC had significantly (p &lt; 0.05) higher system productivity (4.62 t ha−1) than the other treatments, showing a 14.0, 6.3, and 18.2% increase over CAO, CTC, and OCT, respectively. Based on the results, it is recommended that CAC is a better option for achieving higher system productivity, while CAO is the best option for ensuring long-term sustainability of soil fertility. The findings of this study could be useful for farmers and agricultural researchers in designing efficient crop management practices to improve the productivity and sustainability of soybean-wheat cropping system in arid to semiarid ecology

Long-term participant retention and engagement patterns in an app and wearable-based multinational remote digital depression study

Recent growth in digital technologies has enabled the recruitment and monitoring of large and diverse populations in remote health studies. However, the generalizability of inference drawn from remotely collected health data could be severely impacted by uneven participant engagement and attrition over the course of the study. We report findings on long-term participant retention and engagement patterns in a large multinational observational digital study for depression containing active (surveys) and passive sensor data collected via Android smartphones, and Fitbit devices from 614 participants for up to 2 years. Majority of participants (67.6%) continued to remain engaged in the study after 43 weeks. Unsupervised clustering of participants' study apps and Fitbit usage data showed 3 distinct engagement subgroups for each data stream. We found: (i) the least engaged group had the highest depression severity (4 PHQ8 points higher) across all data streams; (ii) the least engaged group (completed 4 bi-weekly surveys) took significantly longer to respond to survey notifications (3.8 h more) and were 5 years younger compared to the most engaged group (completed 20 bi-weekly surveys); and (iii) a considerable proportion (44.6%) of the participants who stopped completing surveys after 8 weeks continued to share passive Fitbit data for significantly longer (average 42 weeks). Additionally, multivariate survival models showed participants' age, ownership and brand of smartphones, and recruitment sites to be associated with retention in the study. Together these findings could inform the design of future digital health studies to enable equitable and balanced data collection from diverse populations

Phenylalanine-Rich Peptides Potently Bind ESAT6, a Virulence Determinant of Mycobacterium tuberculosis, and Concurrently Affect the Pathogen's Growth

BACKGROUND:The secretory proteins of Mycobacterium tuberculosis (M. tuberculosis) have been known to be involved in the virulence, pathogenesis as well as proliferation of the pathogen. Among this set, many proteins have been hypothesized to play a critical role at the genesis of the onset of infection, the primary site of which is invariably the human lung. METHODOLOGY/PRINCIPAL FINDINGS:During our efforts to isolate potential binding partners of key secretory proteins of M. tuberculosis from a human lung protein library, we isolated peptides that strongly bound the virulence determinant protein Esat6. All peptides were less than fifty amino acids in length and the binding was confirmed by in vivo as well as in vitro studies. Curiously, we found all three binders to be unusually rich in phenylalanine, with one of the three peptides a short fragment of the human cytochrome c oxidase-3 (Cox-3). The most accessible of the three binders, named Hcl1, was shown also to bind to the Mycobacterium smegmatis (M. smegmatis) Esat6 homologue. Expression of hcl1 in M. tuberculosis H37Rv led to considerable reduction in growth. Microarray analysis showed that Hcl1 affects a host of key cellular pathways in M. tuberculosis. In a macrophage infection model, the sets expressing hcl1 were shown to clear off M. tuberculosis in much greater numbers than those infected macrophages wherein the M. tuberculosis was not expressing the peptide. Transmission electron microscopy studies of hcl1 expressing M. tuberculosis showed prominent expulsion of cellular material into the matrix, hinting at cell wall damage. CONCLUSIONS/SIGNIFICANCE:While the debilitating effects of Hcl1 on M. tuberculosis are unrelated and not because of the peptide's binding to Esat6-as the latter is not an essential protein of M. tuberculosis-nonetheless, further studies with this peptide, as well as a closer inspection of the microarray data may shed important light on the suitability of such small phenylalanine-rich peptides as potential drug-like molecules against this pathogen