266 research outputs found
STUDY OF PROBIOTICS ON THE SEED PRODUCTION OF BLACK TIGER SHRIMP Penaeus monodon
Currently, antibiotics are widely used in shrimp hatcheries to control bacterial infections. Appearance of antibiotic resistant pathogens and restriction on the use of antibiotics have led to the development of alternatives to antibiotics in hatchery systems. In light of this, an attempt was undertaken to investigate the effects of probiotics on the larval rearing of Penaeus monodon, compared with control tanks (without probiotics). The results showed that several issues significantly improved with administering probiotics in the experimental tanks compared with the tanks without probiotics. For example, the concentration of ammonia was estimated to be 1.25 mg/L that was less than half of what was measured in the control tanks. The size variation was observed more in the control tanks than in the experimental tanks. Moreover, the muscle gut ratio of PL15 was about 85 to 92% in the probiotic treated tank and 70 to 80% in the control tank during the eight cycles of production. The fouling organisms were more in the control tank compared to the experimental tanks. The average length of PL15 was maximum when reared in the experimental tanks compared to the control tanks. The final survival rate of PL15 from the control and experimental tank was 35 and 52%, respectively. The present investigation indicated that probiotics played an important role in the growth, survival and health status of P. monodon larvae
Changes in knee kinematics reflect the articular geometry after arthroplasty
We hypothesized changes in rotations and translations after TKA with a fixed-bearing anterior cruciate ligament (ACL)-sacrificing but posterior cruciate ligament (PCL)-retaining design with equal-sized, circular femoral condyles would reflect the changes of articular geometry. Using 8 cadaveric knees, we compared the kinematics of normal knees and TKA in a standardized navigated position with defined loads. The quadriceps was tensed and moments and drawer forces applied during knee flexion-extension while recording the kinematics with the navigation system. TKA caused loss of the screw-home; the flexed tibia remained at the externally rotated position of normal full knee extension with considerably increased external rotation from 63° to 11° extension. The range of internal-external rotation was shifted externally from 30° to 20° extension. There was a small tibial posterior translation from 40° to 90° flexion. The varus-valgus alignment and laxity did not change after TKA. Thus, navigated TKA provided good coronal plane alignment but still lost some aspects of physiologic motion. The loss of tibial screw-home was related to the symmetric femoral condyles, but the posterior translation in flexion was opposite the expected change after TKA with the PCL intact and the ACL excised. Thus, the data confirmed our hypothesis for rotations but not for translations. It is not known whether the standard navigated position provides the best match to physiologic kinematics
Genetic variation of Parapenaeopsis sculptilis (Decapoda, Penaeidae) and reassessment of the phylogenetic relationships within the genus Parapenaeopsis based on mitochondrial DNA variation
The genus Parapenaeopsis is an important group of marine shrimps for wild capture in the Indo-West Pacific region. Phylogenetics of penaeid shrimps is still a debatable issue. This study focuses on the phylogenetic relationships among seven species within the genus Parapenaeupsis, the population genetic variation of Parapenaeupsis sculptilis along Bangladesh coastline of the Bay of Bengal and the phylogeography of P. sculptilis in the Indian Ocean region by analysing cytochrome oxidase subunit 1 barcode (CO1) sequence. No population structure was detected in P. sculptilis collected from two sampling sites along the Bangladesh coastline (AMOVA and Φ
ST = ‑0.014, p > 0.05; F
ST = 0.061, p = 0.04), which expanded first around 73 (CI: 36‑119) kyr ago. The genealogical relationships in Bangladesh P. sculptilis population are shallow with haplotype diversity (h) of 0.58 and nucleotide diversity (π) of 0.0014. The different P. sculptilis samples from Bangladesh, India and Mozambique of the Indian Ocean revealed connectivity between western Indian Ocean and the Bay of Bengal. The phylogeny within the genus Parapenaeupsis showed a polyphyletic relationships for P. hardickwii and its taxonomy needs to be reevaluated. The study will help for genetic upgradation in aquaculture and monitoring of the population genetic diversity of P. sculptilis
Proceedings of the 23rd annual Central Plains irrigation conference
Presented at Proceedings of the 23rd annual Central Plains irrigation conference held in Burlington, Colorado on February 22-23, 2011.Includes bibliographical references
Bengali Fake Review Detection using Semi-supervised Generative Adversarial Networks
This paper investigates the potential of semi-supervised Generative
Adversarial Networks (GANs) to fine-tune pretrained language models in order to
classify Bengali fake reviews from real reviews with a few annotated data. With
the rise of social media and e-commerce, the ability to detect fake or
deceptive reviews is becoming increasingly important in order to protect
consumers from being misled by false information. Any machine learning model
will have trouble identifying a fake review, especially for a low resource
language like Bengali. We have demonstrated that the proposed semi-supervised
GAN-LM architecture (generative adversarial network on top of a pretrained
language model) is a viable solution in classifying Bengali fake reviews as the
experimental results suggest that even with only 1024 annotated samples,
BanglaBERT with semi-supervised GAN (SSGAN) achieved an accuracy of 83.59% and
a f1-score of 84.89% outperforming other pretrained language models -
BanglaBERT generator, Bangla BERT Base and Bangla-Electra by almost 3%, 4% and
10% respectively in terms of accuracy. The experiments were conducted on a
manually labeled food review dataset consisting of total 6014 real and fake
reviews collected from various social media groups. Researchers that are
experiencing difficulty recognizing not just fake reviews but other
classification issues owing to a lack of labeled data may find a solution in
our proposed methodology
Ethnopharmacological Survey of Medicinal Plants Used by Traditional Healers and Indigenous People in Chittagong Hill Tracts, Bangladesh, for the Treatment of Snakebite
Snakebites are common in tropical countries like Bangladesh where most snakebite victims dwell in rural areas. Among the management options after snakebite in Bangladesh, snake charmers (Ozha in Bengali language) are the first contact following a snakebite for more than 80% of the victims and they are treated mostly with the help of some medicinal plants. Our aim of the study is to compile plants used for the treatment of snakebite occurrence in Bangladesh. The field survey was carried out in a period of almost 3 years. Fieldwork was undertaken in Chittagong Hill Tracts, Bangladesh, including Chittagong, Rangamati, Bandarban, and Khagrachari. Open-ended and semistructured questionnaire was used to interview a total of 110 people including traditional healers and local people. A total of 116 plant species of 48 families were listed. Leaves were the most cited plant part used against snake venom. Most of the reported species were herb in nature and paste mostly used externally is the mode of preparation. The survey represents the preliminary information of certain medicinal plants having neutralizing effects against snake venoms, though further phytochemical investigation, validation, and clinical trials should be conducted before using these plants as an alternative to popular antivenom
Analysis of a multi-megawatt grid connected wind farm
Paper presented at the 8th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Mauritius, 11-13 July, 2011.No abstract available, please open full text articlemp201
Combining Machine Learning Classifiers for Stock Trading with Effective Feature Extraction
The unpredictability and volatility of the stock market render it challenging
to make a substantial profit using any generalized scheme. This paper intends
to discuss our machine learning model, which can make a significant amount of
profit in the US stock market by performing live trading in the Quantopian
platform while using resources free of cost. Our top approach was to use
ensemble learning with four classifiers: Gaussian Naive Bayes, Decision Tree,
Logistic Regression with L1 regularization and Stochastic Gradient Descent, to
decide whether to go long or short on a particular stock. Our best model
performed daily trade between July 2011 and January 2019, generating 54.35%
profit. Finally, our work showcased that mixtures of weighted classifiers
perform better than any individual predictor about making trading decisions in
the stock market
Feasibility study of a wind-pv-diesel hybrid power system for a village
A wind-pv-diesel hybrid power system has been designed for a village in Saudi Arabia which is presently powered by a diesel power plant consisting of eight diesel generating sets of 1,120kW each. The study found a wind-pv-diesel hybrid power system with 35% renewable energy penetration (26% wind and 9% solar PV) to be the feasible system with cost of energy of 0.212US$/kWh. The proposed system was comprised of 3 wind turbines each of 600kW, 1000kW of PV panels, and four diesel generating sets each of 1120kW rated power. The system was able to meet the energy requirements (AC primary load of 17,043.4MWh/y) of the village with 4.1% energy in excess. The annual contributions of wind, solar pv and the diesel generating sets were 4,713.7, 1,653.5, and 11,542.6MWh, respectively. The proposed hybrid power system resulted in avoiding addition of 4,976.8 tons of GHG equivalent of CO2 gas in to the local atmosphere of the village and conservation of 10,824 barrels of fossil fuel annually.The Research Institute of King Fahd University of Petroleum and Mineralshttp://www.elsevier.com/locate/reneneai201
Comparison Between the Efficacies of Amlodipine and Cilnidipine in Treating Hypertensive Patients
Background: Controlling systolic blood pressure (SBP) and diastolic blood pressure (DBP) in hypertension (HTN) patients is one of the main challenges. Amlodipine is one of the calcium channel blockers (CCBs) with a remarkable pharmacokinetic and pharmacodynamic profile. But we have not enough research-based information regarding the effectiveness of amlodipine and cilnidipine in treating hypertension patients. Aim of the study: The objective of this study was to assess the effectiveness of amlodipine and cilnidipine in treating hypertensive patients.
Methods: This study was conducted at the Upazila Health Complex in Shahrasti, Chandpur, Bangladesh, from January 2021 to December 2021. In the study, 200 patients of either sex between the ages of 18 and 60 years were involved. The total number of participants were divided into two equal groups. There were 100 patients in each of the groups. As the part of the hypertension treatment protocol, patients in the first group, received oral amlodipine 5–10 mg/day whereas in other group, patients received oral cilnidipine 10–20 mg/day. During the checkup, the mean systolic and diastolic blood pressure values were noted and evaluated. SPSS 22.0 was used to analyze the data. Results: After 8 weeks of treatment, the cilnidipine group’s SBP gradually decreased from 146.2±12.60 to 130.04±5.023 and its DBP gradually decreased from 94.21±6.86 to 84.34±1.79. On the other hand, in the amlodipine group, a gradual decline of SBP from 151.46±11.21 to 131.62±3.91 and DBP from 95.5±5.80 to 83±2.55 was observed. The results of the paired t-test statistical analysis were statistically significant, where the P value was found as 0.00001. Conclusion: Considering the findings of this current study we can conclude that, both amlodipine and cilnidipine have significant role in controlling blood pressure. But cilnidipine shows some superiority over amlodipine in lowering systolic blood pressure which is equally effective in lowering diastolic blood pressure.
 
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