231 research outputs found
Upgrading a Social Media Strategy to Increase Twitter Engagement During the Spring Annual Meeting of the American Society of Regional Anesthesia and Pain Medicine.
Microblogs known as tweets are a rapid, effective method of information dissemination in health care. Although several medical specialties have described their Twitter conference experiences, Twitter-related data in the fields of anesthesiology and pain medicine are sparse. We therefore analyzed the Twitter content of 2 consecutive spring meetings of the American Society of Regional Anesthesia and Pain Medicine using publicly available online transcripts. We also examined the potential contribution of a targeted social media campaign on Twitter engagement during the conferences. The original Twitter meeting content was largely scientific in nature and created by meeting attendees, the majority of whom were nontrainee physicians. Physician trainees, however, represent an important and increasing minority of Twitter contributors. Physicians not in attendance predominantly contributed via retweeting original content, particularly picture-containing tweets, and thus increased reach to nonattendees. A social media campaign prior to meetings may help increase the reach of conference-related Twitter discussion
Experimental Evaluation of a Video Capture Board for Networked Workstations
This thesis examines the architectural issues in the design of a video capture board intended for use in multimedia videoconferencing. The major issues examined are:
Control of reception and transmission of multimedia video streams,
(i) Quality of service and service provision
(ii) Compression requirements and solutions
(iii) Data buffering and card connection strategies
(iv) Handling multiple video streams
Results of measurements for prototype boards designed and constructed at Penn are also given
High potency fish oil supplement improves omega-3 fatty acid status in healthy adults: an open-label study using a web-based, virtual platform
BACKGROUND: The health benefits of omega-3 fatty acids from fish are well known, and fish oil supplements are used widely in a preventive manner to compensate the low intake in the general population. The aim of this open-label study was to determine if consumption of a high potency fish oil supplement could improve blood levels of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) and impact SF-12 mental and physical health scores in healthy adults. METHODS: A novel virtual clinical research organization was used along with the HS-Omega-3 Index, a measure of EPA and DHA in red blood cell membranes expressed as a percentage of total fatty acids that has been shown to correlate with a reduction in cardiovascular and other risk factors. Briefly, adult subjects (mean age 44 years) were recruited from among U.S. health food store employees and supplemented with 1.1 g/d of omega-3 from fish oil (756 mg EPA, 228 mg DHA, Minami Nutrition® MorEPA® Platinum) for 120 days (n = 157). RESULTS: Omega-3 status and mental health scores increased with supplementation (p < 0.001), while physical health scores remained unchanged. CONCLUSIONS: The use of a virtual, web-based platform shows considerable potential for engaging in clinical research with normal, healthy subjects. A high potency fish oil supplement may further improve omega-3 status in a healthy population regularly consuming an omega-3 supplement
Effects of SuperUlam on Supporting Concentration and Mood: A Randomized, Double-Blind, Placebo-Controlled Crossover Study
Background. SuperUlam is a proprietary blend of natural ingredients aimed at supporting brain health. We aimed to evaluate the effect of SuperUlam on attention and mood in healthy adults. Methods. Twenty healthy individuals aged 35–65 were enrolled in this randomized, double-blind, placebo-controlled, crossover study. Study duration was 3 weeks and consisted of 3 visits. Measurement of cognitive function included computer-based testing of reaction time, complex attention, working memory, sustained attention, and executive functioning. Mood testing was performed via the profile of mood states (POMS) survey and the Chalder fatigue scale. Results. Cognitive function testing demonstrated a significant improvement from baseline in executive functioning, cognitive flexibility, reaction time, and working memory in the product group only (P<0.05). When comparing the study product to placebo, the data demonstrated a significant decrease in tension, depression, and anger (P<0.05). There was no significant difference between the product and placebo in the other measures of mood, including vigor, fatigue, confusion, and total mood disturbance. No adverse events were reported. Conclusions. Supplementation with SuperUlam is safe to consume with potential benefits to cognitive function and mood
Proprietary arabinogalactan extract increases antibody response to the pneumonia vaccine: a randomized, double-blind, placebo-controlled, pilot study in healthy volunteers
<p>Abstract</p> <p>Background</p> <p>Arabinogalactan from Larch tree (<it>Larix </it>spp.) bark has previously demonstrated immunostimulatory activity. The purpose of this study was to test the hypothesis that ingestion of a proprietary arabinogalactan extract, ResistAid™, would selectively enhance the antibody response to the pneumococcal (pneumonia) vaccine in healthy adults.</p> <p>Methods</p> <p>This randomized, double-blind, placebo-controlled, parallel group pilot study included 45 healthy adults who had not previously been vaccinated against <it>Streptococcus pneumoniae</it>. The volunteers began taking the study product or placebo (daily dosage 4.5 g) at the screening visit (V1-Day 0) and continued over the entire 72 day study period. After 30 days the subjects received the 23-valent pneumococcal vaccine (V2). They were monitored the following day (V3-Day 31), as well as 21 days (V4-Day 51) and 42 days (V5-Day 72) after vaccination. Responses by the adaptive immune system (antigen specific) were measured via pneumococcal IgG antibodies (subtypes 4, 6B, 9V, 14, 18C, 19F, and 23F) and salivary IgA levels. Responses by the innate immune system (non-specific) were measured via white blood cell counts, inflammatory cytokines and the complement system.</p> <p>Results</p> <p>Vaccination significantly increased pneumococcal IgG levels as expected. The arabinogalactan group demonstrated a statistically significant greater IgG antibody response than the placebo group in two antibodies subtypes (18C and 23F) at both Day 51 (p = 0.006 and p = 0.002) and at Day 72 (p = 0.008 and p = 0.041). These same subtypes (18C and 23F) also demonstrated change scores from baseline which were significant, in favor of the arabinogalactan group, at Day 51 (p = 0.033 and 0.001) and at Day 72 (p = 0.012 and p = 0.003). Change scores from baseline and mean values were greater in the arabinogalactan group than placebo for most time points in antibody subtypes 4, 6B, 9V, and 19F, but these differences did not reach statistical significance. There was no effect from the vaccine or arabinogalactan on salivary IgA, white blood cell count, inflammatory cytokines or complement.</p> <p>Conclusions</p> <p>The proprietary arabinogalactan extract (ResistAid™), tested in this randomized, double-blind, placebo-controlled, parallel-group pilot study, increased the antibody response of healthy volunteers to the 23-valent pneumococcal vaccine compared to placebo.</p> <p>Trial Registration</p> <p>ISRCTN98817459</p
Evaluation of Mangosteen juice blend on biomarkers of inflammation in obese subjects: a pilot, dose finding study
<p>Abstract</p> <p>Background</p> <p>The ability to reduce inflammation in overweight and obese individuals may be valuable in preventing the progression to metabolic syndrome with associated risks for heart disease and diabetes. The purpose of this study was to evaluate the effect of multiple dosages of a proprietary Mangosteen Juice blend on indicators of inflammation and antioxidant levels in obese patients with elevated C-reactive protein (CRP) levels.</p> <p>Methods</p> <p>The study was an 8 week randomized, double-blind, placebo-controlled study with a pre-study 2 week washout period. The study included four groups including placebo and three difference doses of the test product, XanGo Juice™: 3, 6 or 9 oz twice daily. The primary outcome measure of this study was high-sensitivity (HS)-CRP. Secondary outcome measures included other biochemical indicators of inflammation, anthropomorphic measures and a safety evaluation.</p> <p>Results</p> <p>One hundred twenty two (122) persons were screened for the study, 44 were randomized and 40 completed the study. HS-CRP measurements dropped after 8 weeks treatment compared to baseline in all 3 dose groups and increased in the placebo group. The changes from baseline were not significant but the comparison of change from baseline was significant for the 18 oz group when compared to placebo (p = 0.02). Other markers of inflammation (inflammatory cytokines) and a marker for lipid peroxidation (F2 isoprostane) did not show any significant differences when compared with placebo. There was a trend towards a decrease in BMI in the juice groups. There were no side effects reported in any of the groups and none of the laboratory or EKG safety assessments indicated clinically significant changes for any subject.</p> <p>Conclusion</p> <p>In this pilot, dose-finding study, a proprietary mangosteen juice blend (XanGo Juice™) reduced CRP levels (increased change from baseline) compared to placebo for those taking the highest dose of 18 oz per day. Further studies with a larger population are required to confirm and further define the benefits of this juice. The juice was administered safely.</p> <p>Trial Registration</p> <p>ISRCTN9300027</p
Response of a single \u27mega intramuscular dose\u27 of vitamin D on serum 25OHD and parathyroid hormone levels
Objective: To determine the changes produced in serum 25OHD and iPTH levels after 600,000 IU of injection cholecalciferol in volunteers. Study Design: Interventional study. Place and Duration of Study: Section of Chemical Pathology, Department of Pathology and Microbiology, the Aga Khan University Hospital, Karachi, from June 2009 - June 2010. Methodology: Volunteers of either gender aged 18-40 years with known 25OHD, calcium (Ca), creatinine (Cr) and phosphorous (P) levels were included in the study. Subjects on therapy like vitamin D and calcium supplements, corticosteroids or anti-epileptic medicines, primary hyperparathyroidism and hypercalcaemia, with co-morbidity like renal failure, liver disease and history of malabsorption, diarrhea or hyperthyroidism were excluded. All volunteers were given an intramuscular injection of vitamin D3 (cholecalciferol, 600,000 IU). After 8 weeks, serum 25OHD, iPTH, Ca and P levels were determined again. For 25OHD level, cut-off of ≤ 50 nmol/l was defined as deficient, 50-75 nmol/l as insufficient and ≥ 75 as optimal level. Results: Mean 25OHD and iPTH levels were 35.06 ± 16.6 nmol/l and 81.15 ± 76.78 pg/ml respectively at baseline. Seventeen volunteers were 25OHD deficient. Five had high iPTH levels (25%) (mean 156 ± 123.7 pg/ml). 25OHD and iPTH showed a significant inverse correlation at baseline (\u3c 0.01). After 8 weeks of injection vitamin D 25OHD levels became optimal in 6 subjects (35%) [mean 92.9 ± 16.6 nmol/l]. It remained low in 5 volunteers (25%) [mean 41.6 ± 9.6 nmol/l] while insufficient levels were seen in 9 volunteers (40%) [mean 63.3±5.8 nmol/l]. Follow-up mean Ca, P and iPTH were 2.25 mmol/l (± 0.09), 1.1 (± 0.1) and 47.52 pg/ml (± 22.56) respectively. A significant increase in mean 25OHD level was seen at follow-up (p \u3c 0.01), while the change in PTH was insignificant (p=0.05). Conclusion: Single mega-dose of cholecalciferol achieved optimal levels of 25OHD in 35% of subjects after eight weeks of supplementation
Effects of kivia powder on Gut health in patients with occasional constipation: a randomized, double-blind, placebo-controlled study
OBJECTIVE: To evaluate the efficacy of Kivia powder on supporting overall gut health through the relief of the discomfort of occasional constipation. DESIGN: Randomized, double-blind, placebo-controlled, parallel-group trial. INTERVENTIONS: The investigational product for this study was Kivia powder (Vital Food Processors Ltd., Auckland, New Zealand), containing the active ingredient Zyactinase™, 5.5 g taken daily for four weeks. RESULTS: One hundred thirty-eight subjects reporting occasional constipation were screened and 87 were randomized to placebo (n = 44) and product (n = 43). Bowel movement frequency, as measured by both average daily spontaneous bowel movements (SBM) and complete spontaneous bowel movements (CSBM), were the same in both groups at baseline. There were significant increases in spontaneous bowel movements at week 1 (p = 0.001), week 2 (p = 0.001), week 3 (p = 0.000), and week 4 (p = 0.000) compared to baseline. SBM demonstrated significant differences between the treatment group and the placebo group at week 3 (p = 0.000), and week 4 (p = 0.020). The treatment group demonstrated a significantly higher rate of SBM at week 3 (p = 000) and from baseline to week 4 (p = 0.019). Significant increases in complete spontaneous bowel movements were observed at week 1 (p = 0.000), week 2 (p = 0.000), week 3 (p = 0.000), and week 4 (p = 0.000) compared to baseline. Moreover, CSBM was significantly higher for the treatment group compared to placebo at week 2 (p = 0.001). The change in average daily CSBM from baseline to week 2 was significantly higher in the treatment group than in the placebo group (p = 0.004). Abdominal discomfort or pain demonstrated significant differences between groups at week 1 (p = 0.044) and week 3 (p = 0.026). Flatulence was significantly lower for active group compared to placebo at week 2 (p = 0.047) and week 3 (p = 0.023). The number of bowel movements associated with urgency was significantly lower in the treatment group compared to the placebo group at week 3 (p = 0.048). In addition, it was decreased from baseline to week 1 (p = 0.040) and from baseline to week 3 (p = 0.024) in the treatment group, while the placebo group did not report any reductions in bowel urgency. Bowel movements in the treatment arm were significantly smoother and softer by week 2 (p = 0.020) and week 3 (p = 0.041). CONCLUSIONS: Treatment with Kivia powder, an extract of kiwifruit containing Zyactinase™, for four weeks was well tolerated and more effective than placebo in gently enhancing bowel movement frequency and reducing abdominal pain and flatulence in subjects with occasional constipation. TRIAL REGISTRATION: ISRCTN: ISRCTN4903661
Identifying False Content and Hate Speech in Sinhala YouTube Videos by Analyzing the Audio
YouTube faces a global crisis with the dissemination of false information and
hate speech. To counter these issues, YouTube has implemented strict rules
against uploading content that includes false information or promotes hate
speech. While numerous studies have been conducted to reduce offensive
English-language content, there's a significant lack of research on Sinhala
content. This study aims to address the aforementioned gap by proposing a
solution to minimize the spread of violence and misinformation in Sinhala
YouTube videos. The approach involves developing a rating system that assesses
whether a video contains false information by comparing the title and
description with the audio content and evaluating whether the video includes
hate speech. The methodology encompasses several steps, including audio
extraction using the Pytube library, audio transcription via the fine-tuned
Whisper model, hate speech detection employing the distilroberta-base model and
a text classification LSTM model, and text summarization through the fine-tuned
BART-Large- XSUM model. Notably, the Whisper model achieved a 48.99\% word
error rate, while the distilroberta-base model demonstrated an F1 score of
0.856 and a recall value of 0.861 in comparison to the LSTM model, which
exhibited signs of overfitting
A proprietary alpha-amylase inhibitor from white bean (Phaseolus vulgaris): A review of clinical studies on weight loss and glycemic control
Obesity, and resultant health hazards which include diabetes, cardiovascular disease and metabolic syndrome, are worldwide medical problems. Control of diet and exercise are cornerstones of the management of excess weight. Foods with a low glycemic index may reduce the risk of diabetes and heart disease as well as their complications. As an alternative to a low glycemic index diet, there is a growing body of research into products that slow the absorption of carbohydrates through the inhibition of enzymes responsible for their digestion. These products include alpha-amylase and glucosidase inhibitors. The common white bean (Phaseolus vulgaris) produces an alpha-amylase inhibitor, which has been characterized and tested in numerous clinical studies. A specific and proprietary product named Phase 2® Carb Controller (Pharmachem Laboratories, Kearny, NJ) has demonstrated the ability to cause weight loss with doses of 500 to 3000 mg per day, in either a single dose or in divided doses. Clinical studies also show that Phase 2 has the ability to reduce the post-prandial spike in blood glucose levels. Experiments conducted incorporating Phase 2 into food and beverage products have found that it can be integrated into various products without losing activity or altering the appearance, texture or taste of the food. There have been no serious side effects reported following consumption of Phase 2. Gastro-intestinal side effects are rare and diminish upon extended use of the product. In summary, Phase 2 has the potential to induce weight loss and reduce spikes in blood sugar caused by carbohydrates through its alpha-amylase inhibiting activity
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