13 research outputs found
Compositional effect on the deformation behavior of polyurethane pressure‐sensitive adhesive thin films
No full textTheoretical exploration of heat transport in a stagnant power-law fluid flow over a stretching spinning porous disk filled with homogeneous-heterogeneous chemical reactions
No full textThe distinction between homogeneous and heterogeneous chemical reactions is crucial because many chemically reactive systems, such as hydrometallurgical processes, cooling towers, biological systems, fog dispersion, catalysis, etc., involve both types of reactions. Thus, this study analyzes the heat transmission (HT) characteristics in an MHD stagnant flow of power-law fluid caused by a spinning disk that is stretched and saturated in a porous medium. The study considers homogeneous-heterogeneous (HH) reactions and nonlinear thermal radiation subject to no-slip and convection boundary conditions. The leading equations are switched into ordinary differential equations (ODEs) employing similarity variables. The study focuses on the dimensionless concentration, velocity, temperature, Nusselt number, and skin friction coefficient, which are discussed in detail in the results and discussion section. The study observes that for power-law fluids with an index value less than 1, the skin friction coefficient decays as the power-law index grows. It also notes that the dimensionless skin friction of power-law fluids decreases as the velocity ratio increases. The dimensionless concentration increases with Schmidt and modified Prandtl numbers for both power-law fluids over a stretching spinning porous disk. The HH reaction parameters decline the concentration of power-law fluids. © 2023 The AuthorsDeanship of Scientific Research, King Khalid University: RGP.2/492/44The authors extend their appreciation to the Deanship of Scientific Research at King Khalid University, Abha, Saudi Arabia for funding this work through Large Groups Project under grant number RGP.2/492/44
Proximal Fibular Osteotomy – Simplest and Most Effective Mean to Delay Total Knee Arthroplasty
No full textBackground: Osteoarthritis involves degeneration of articular cartilage seen with increasing age. The knee joint, the most common joint that falls prey to attacks of osteoarthritis, has 30% incidence in population above 60 years. Total knee arthroplasty (TKA) is the main surgical option for orthopaedics. Though it corrects the deformity and relieves pain, yet it is not the treatment of choice in younger population. This study aimed to validate the effects of proximal fibular osteotomy (PFO) as a newer technique in managing medial compartment knee osteoarthritis.
Methods: The diagnosed patients for medial compartment knee joint osteoarthritis were selected for study from Dr. Ziauddin University hospital of Karachi. Excluded were aged less than 40 years, or with BMI more than 30, and patients with tri-compartmental arthritis. Medial and lateral joint spaces along with Oxford knee score were measured and recorded pre- and post-operatively. Patients underwent PFO after giving written and informed consent.
Results: Total number of patients selected was 30 for this study; 21 (70%) females, and 9 (30%) males (mean age 58.8 years). Mean pre-operative measured medial joint space on standard antero-posterior (AP) radiograph was 0.442± 0.04 cm. Mean recorded pre-operative Oxford knee score was 23.87±3.74 mm. Improvement was observed in mean postoperative medial joint space to 0.572± 0 .066 cm and mean post-operative Oxford knee score to 40.2±5.8mm.
Conclusion: This study concludes that PFO significantly improves joint function in patients with medial compartment osteoarthritis knee and may delay the need for total knee arthroplasty, if carried out at an appropriate stage.
Keywords: Osteotomy; Osteoarthritis; Total Knee Arthroplasty
Clinical efficiency and safety of Hsp90 inhibitor Novobiocin in avian tibial dyschondroplasia
No full textProductive performance, egg quality, hematological parameters and serum chemistry of laying hens fed diets supplemented with certain fat-soluble vitamins, individually or combined, during summer season
No full textThis present study aimed to determine the efficacy of supplementing layer diets with vitamin A (0, 8,000 and 16,000 IU/kg diet) and vitamin E (0, 250 and 500 mg/kg diet) either individually or in combination on egg production and quality, and blood hematology and chemistry of birds reared under summer conditions. A total of 135 Bovans Brown laying hens were distributed to 9 treatment groups with 5 replicates of 3 hens/pen in a 3 × 3 factorial design. A significant improvement in feed conversion ratio (FCR) was observed as supplementary vitamin A or E increased (P ≤ 0.01). Hens fed diets supplemented with 16,000 IU vitamin A plus 500 mg vitamin E/kg diet had the best FCR among all groups. Egg quality traits were not significantly affected by the interaction of vitamin A and vitamin E levels. There was a significant increase in monocytes (P ≤ 0.01) and a decrease in basophils counts (P ≤ 0.05) in response to vitamin E. Significant decreases were observed in packed cell volume (PCV), thyroxine (T4), alanine transferase (ALT), albumin, total cholesterol and total lipids ( (P ≤ 0.05 or P ≤ 0.01) P ≤ 0.01) , and increases were observed in serum concentrations of globulin (P ≤ 0.05) and calcium (P ≤ 0.01) due to vitamin A. The combination of 0 IU vitamin A and 500 mg vitamin E/kg diet had the highest values of PCV (40.09%) and hemoglobin (Hb) (10.33 mg/100 mL) among all groups. Vitamin E raised serum values of total protein, total cholesterol and total lipids (P ≤ 0.05 or P ≤ 0.01). Feed intake, FCR, PCV, Hb, lymphocytes, monocytes, eosinophils, T4, ALT and total protein were significantly affected by the interaction of vitamins A and E (P ≤ 0.05 or P ≤ 0.01). The interaction of vitamins A and E was only significant with respect to serum total protein (P ≤ 0.05). It can be concluded that layer diets supplemented with vitamins A and E had good results in alleviating the harmful impacts of high ambient temperature. The combination of 16,000 IU vitamin A and 500 mg vitamin E per kilogram diet is preferable for obtaining better production of laying hens reared under hot summer conditions. Keywords: Vitamin A, Vitamin E, Layer, Egg quality, Blood hematology, Serum metabolite
Azure-Based Multi-Sensor IoT Network for Smart Rice-Nursery Field
No full textRice farmers rely on nurseries for various reasons, as they play a pivotal role in cultivating high-quality rice crops. These nurseries provide essential seedlings for subsequent transplantation to the paddy fields. The success of rice cultivation hinges on maintaining a robust and thriving nursery, resulting in improved yields and superior grain quality. To enhance nursery management, a novel method proposes real-time monitoring of environmental conditions. A trial study evaluated the system\u27s performance, demonstrating a significant increase in precision and efficiency, leading to higher crop yields and reduced production costs. This innovative approach has the potential to revolutionize rice nursery practices, promoting sustainability and effectiveness. The study introduces an Internet of Things (IoT)-based real-time monitoring system implemented in a rural area of Sindh, Pakistan. Utilizing a network of sensors, the system gathers vital environmental data that impacts rice nursery growth. The recorded information is then analyzed on the Azure cloud platform, and data visualization is achieved through Power BI. Additionally, an email notification component alerts farmers and agricultural experts based on the sensor data, facilitating timely actions and informed decision-making
Ultrasound Assisted Endoscopic Gastric Bypass (USA-EGB): a potential endoscopic alternative to surgical bypass, a pre-clinical proof of concept study
No full textBackground and study aims Endoscopic weight loss procedures have
gained traction as minimally invasive options for the primary treatment of obesity. Thus far,
we have developed endoscopic procedures that reliably address gastric restriction but result
in significantly less weight loss than surgical gastrointestinal bypass. The goal of this
nonsurvival study was to assess the technical feasibility of an endoscopic procedure, that
incorporates both gastric restriction and potentially reversible gastrointestinal
bypass.
Methods Ultrasound-assisted endoscopic gastric bypass (USA-EGB)
was performed in three consecutive live swine, followed by euthanasia and necropsy. Procedure
steps were: 1) balloon-assisted enteroscopy that determines the length of the bypassed limb;
2) endoscopic ultrasound-guided gastroenterostomy that creates a gastrointestinal anastomosis
using a lumen apposing metal stent; 3) endoscopic pyloric exclusion that disrupts transpyloric
continuity resulting in complete gastrointestinal bypass; and 4) gastric restriction that
reduces gastric volume.
Results Complete gastrointestinal bypass and gastric restriction
was achieved in all three swine. The mean total procedure time was 131 minutes (range
113–143), mean length of the bypassed limb was 92.5 cm and 180 cm, using short and long
overtubes, respectively. There were no significant complications.
Conclusions We successfully described USA-EGB in three
consecutive live swine. Further studies are needed to access the procedures safety, efficacy,
and clinical use
EUS-guided rendezvous is a viable salvage technique for failed billiary cannulation in patients with Roux-en-Y gastric bypass undergoing BAE-ERCP
No full textImpacts of distiller’s dried grains with solubles as replacement of soybean meal plus vitamin E supplementation on production, egg quality and blood chemistry of laying hens
No full textAbstract
The present investigation aimed to study the effect of the partial replacement of distiller’s dried grains with solubles (DDGS) instead of soybean meal (SBM) with or without vitamin E supplementation in laying hen diet on egg quality criteria, egg analysis, blood chemistry and productive performance traits. A 4×2 factorial design experiment was carried out involving four substitution levels of DDGS (0, 25, 50 and 75%) and two levels of vitamin E (0 and 250 mg /kg diet) through 22-42 weeks of age. No significant differences were noticed between the control and 25 or 50% DDGS substitution in the percentage of eggs produced and egg output. The fewest number of produced eggs and the lightest egg output were observed in 75% DDGS group. Yolk index, shell percentage, and Haugh unit scores were affected (P>0.01) by DDGS levels. Albumin percentage showed increase (P>0.01) in vitamin E treated groups. The impact of the combination of DDGS and vitamin E was significant (P>0.01) on all egg quality traits excepting shell percentage. The 75% DDGS diet gave the highest values of egg nutrients. Vitamin E had a positive effect on egg crude protein, ether extract, and nitrogen free extract which increased by 10.39, 10.28 and 7.85%, respectively. The combination of vitamin E addition and DDGS levels was highly significant (P>0.01) on all egg nutrients. Hens fed the 50% DDGS diet had more concentrations of lipids profile in their blood than those fed control and other DDGS diets. All serum lipid profile inclined to increase due to vitamin E supplementation. The interaction between DDGS and vitamin E had significant (P>0.05 or 0.01) influence on all serum metabolites excepting calcium. It could be concluded that vitamin E could enhance nutrient content of eggs and preserve blood lipids from lipid peroxidation. The interaction between 75% DDGS replaced SBM with 200 mg vitamin E/kg diet accomplished the best results regarding nutrient content of eggs.</jats:p
Current state of biliary cannulation techniques during endoscopic retrograde cholangiopancreatography (ERCP): International survey study
No full textBackground and study aims Endoscopist techniques affect biliary
cannulation success and the risk of adverse events during endoscopic retrograde
cholangiopancreatography (ERCP). This survey study aims to understand the current practice of
biliary cannulation techniques among endoscopists.
Methods Practicing endoscopists were sent an anonymous
28-question electronic survey on biliary cannulation techniques and intraprocedural
pancreatitis prophylactic strategies.
Results The survey was completed by 692 endoscopists (6.2%
females). A wire-guided cannulation technique (WGT) was the preferred initial biliary
cannulation approach (95%). The preferred secondary approaches were a double-wire (DWT)
(65.8%), precut needle-knife technique (NKT) (25.7%), transpancreatic sphincterotomy (5.9%) or
other (2.6%). Overall, 18.1% of respondents were not comfortable with NKTs. In the setting of
pancreatic duct (PD) access, 81.9% and 97% reported a threshold of three or more wire passes
or contrast injections into the PD, respectively, before changing strategy, 34% reported
placement of a prophylactic PD stent <50% of the time and 12.1% reported removal of the PD
stent at the end of the procedure. Advanced endoscopy fellowship (AEF) training and high
volume (>200 ERCPs per year) were associated with comfort with precut NKTs and likelihood
of prophylactic PD stent (P<0.001 for both).
Conclusions A WGT technique followed by the DWT and NKT were the
preferred biliary cannulation techniques; however, almost one-fifth of respondents were not
comfortable with the NKT. There was considerable variability in secondary cannulation
approaches, time spent attempting biliary cannulation and prophylactic PD stent placement,
factors known to be associated with cannulation success and adverse outcomes
