Social Media vs Traditional Media on Consumer Buying Behavior: The Mediating Role of Consumer Brand Perception

Consumer brand perception is important for a brand and sustainable growth. Both social media and traditional media affect consumers’ buying behavior and brand perception. Unlike past studies, we have examined the effect of traditional and social media on consumers’ attitudes, behavior, and brand perception. The focus of the study was the textile and apparel industry of Karachi. The study has used a closed-ended questionnaire and the mall-intercept method for collecting the data. We had intercepted 400 customers and received feedback from 375. The response rate aligns with other studies that have used the mall intercept method to collect the data. For statistical analysis, we have used Smart PLS version 3.2. The results suggest that it promotes consumer buying behavior and consumer brand perception. The study also found that traditional media stimulates consumer buying behavior and brand perception. The study also found that consumer brand perception stimulates (1) social media and consumer buying behavior and (2) traditional media and consumer buying behavior. Social media usage has increased significantly, but it has not decreased the importance of traditional media. The impact of traditional and social media on consumers is not the same. Thus, marketers, while selecting media, must keep in mind the target consumers and products. The study recommends that firms use conventional and social media to increase brand perception and stimulate positive buying behavior

Neuropsychiatric systemic lupus erythematosus: a rare case of acute polyneuropathy

Systemic lupus erythematosus (SLE) is a chronic autoimmune disease which presents most commonly in middle aged females and affects multiple organ systems. Amongst the many systems involved, the nervous system generally gets affected later in the course of the disease. We report a case of a male patient who developed quadriparesis as the initial presentation of SLE who progressed to lupus nephritis. The patient was started on methylprednisolone, and later planned on IVIg when he did not respond to the initial treatment. Unfortunately, the patient developed diaphragmatic paralysis and succumbed to the illness

Pheochromocytoma presenting as intra-cerebral hemorrhage in a young male

A male in his late teens presented with sudden onset left-sided hemiparesis and right-sided facial weakness. The patient had a history of persistent pulsatile headache for 1 year with the blurring of vision. He also had a history of diaphoresis and palpitations. The patient was diagnosed as a case of hypertension 1 year back. On examination, Right-sided upper motor neuron type facial palsy was present, and power was 0/5 in the left upper and lower limbs; BP was 220/120 mm Hg and was controlled using prazosin and nifedipine. A non-contrast computed-tomography scan (NCCT) of the brain revealed an intracerebral hemorrhage in the right ganglio-capsular region. Abdominal CT scan findings revealed a right suprarenal mass. 24-hour urinary normetanephrine was elevated, suggesting a diagnosis of pheochromocytoma. The surgical resection of the mass was delayed as the patient had developed Dengue shock syndrome, and he died of multiple organ dysfunction syndrome

Role of simulation in open varicose veins surgery: A systematic review

Objective: To assess the types and effectiveness of simulators present for open varicose vein surgery. Methods: The systematic review was conducted at The Aga Khan University Hospital Karachi and comprised studies published from 1st January 2000 to 30th June 2020 related to open varicose vein surgical procedures done on simulators. Databases searched were PubMed, Medline, Google Scholar, Cochrane and Scopus using appropriate key words. The primary outcome of the review was to assess the effectiveness of different types of simulators used for varicose vein surgery. Results: Of the 286 articles found, 6(2%) were included. A variety of simulators ranging from animal models, homemade simulators and commercially designed models with high fidelity options had been used. Technical competence was the major domain assessed in most of the studies 5(83.3%), while 1(16.6%) study focussed on self-assessment. Blinding was done in 4(66.6%) studies for assessment purpose, and videorecording of the trainees\u27 performance was done in 5(83.3%) studies. Most studies 4(66.6%) found the use of simulation to be an effective tool in achieving technical competence. Conclusion: The use of simulation in the training of surgical residents for open varicose vein surgery was found to be beneficial, but most studies were heterogeneous in terms of design, simulator types and study participants. This makes it difficult to establish the superiority of any one type of simulator over the rest. Further research is needed to develop and validate simulators in open varicose vein surgery procedures

Clinical insights on Tolosa Hunt syndrome: a multidisciplinary approach on neurological-related symptomatology in maxillofacial region

Background Tolosa–Hunt syndrome (THS) related neurological symptoms are described in literature as “unilateral”, “recurrent”, “episodic”, “intense”, “severe”, “lancinating” or “stabbing” pain on the upper face and forehead and may be misdiagnosed due to the similarity of few symptoms and a significant number of common characteristics between both conditions. Aims The aim of this brief report is to indicate some important clinical insights related to Tolosa Hunt syndrome, and to give a frank account on the multidisciplinary approach on neurological-related symptomatology in maxillofacial region. Methods We analysed a selection of patients with such clinical picture. To better describe the proper management of clinical cases, we report a 50-year-old female reporting an history of two years of recurrent, severe stabbing pain around the right eye, prominence of her cheek and forehead. Her general dentist first mistakenly diagnosed toothache and, thus, it was subsequently misdiagnosed the trigeminal neuropathy (TN). Results Reported exemplificative case presented a mild ptosis, diplopia of the right eye, corneal reflex loss, paresthesia and hyperesthesia of upper part of left side of face. Magnetic resonance imaging (MRI) findings were suggestive of THS. Complete resolution of symptoms was achieved with oral Prednisolone and constant monitoring of symptoms. Conclusion THS may be added to the long list of differential diagnosis of TN and general dentist and oral surgeons should be informed about such rare causes of facial pain through continued medical education programs

Randomize to Generalize: Domain Randomization for Runway FOD Detection

Tiny Object Detection is challenging due to small size, low resolution, occlusion, background clutter, lighting conditions and small object-to-image ratio. Further, object detection methodologies often make underlying assumption that both training and testing data remain congruent. However, this presumption often leads to decline in performance when model is applied to out-of-domain(unseen) data. Techniques like synthetic image generation are employed to improve model performance by leveraging variations in input data. Such an approach typically presumes access to 3D-rendered datasets. In contrast, we propose a novel two-stage methodology Synthetic Randomized Image Augmentation (SRIA), carefully devised to enhance generalization capabilities of models encountering 2D datasets, particularly with lower resolution which is more practical in real-world scenarios. The first stage employs a weakly supervised technique to generate pixel-level segmentation masks. Subsequently, the second stage generates a batch-wise synthesis of artificial images, carefully designed with an array of diverse augmentations. The efficacy of proposed technique is illustrated on challenging foreign object debris (FOD) detection. We compare our results with several SOTA models including CenterNet, SSD, YOLOv3, YOLOv4, YOLOv5, and Outer Vit on a publicly available FOD-A dataset. We also construct an out-of-distribution test set encompassing 800 annotated images featuring a corpus of ten common categories. Notably, by harnessing merely 1.81% of objects from source training data and amalgamating with 29 runway background images, we generate 2227 synthetic images. Subsequent model retraining via transfer learning, utilizing enriched dataset generated by domain randomization, demonstrates significant improvement in detection accuracy. We report that detection accuracy improved from an initial 41% to 92% for OOD test set.Comment: 29 pages, 9 figure

Cytotoxicity, Morphology and Chemical Composition of Two Luting Cements: An in Vitro Study

Objective: To assess the cytotoxicity, surface morphology, elemental compositions and chemical characterization of two commonly used luting cement. Material and Methods: The two luting types of cement used were Elite Cement® and Hy-Bond Resiglass®. Freshly mixed (n=6) and set form (n=6) of each cement was placed in medium to obtain extracts. The extract from each sample was exposed to L929 mouse fibroblasts (1x104cells/well). Alamar Blue Assay assessed cell viability. Surface morphology and elemental composition were evaluated using scanning electron microscopy and energy dispersive spectroscopy. The chemical characterization was performed by Fourier Transform Infrared Spectroscopy. One-way ANOVA and post-hoc Tukey analysis were conducted to assess results. Results: Hy-Bond Resiglass® was the more cytotoxic of the two types of cement in both freshly mixed (68.10 +5.16; p<0.05) and set state (87.58 +4.86; p<0.05), compared to Elite Cement® both freshly mixed (77.01 +5.45; p<0.05) and set state (89.39 +5.66; p<0.05). Scanning electron microscopy revealed a more irregular and porous structure in Hy-Bond Resiglass® compared to Elite Cement®. Similarly, intense peaks of aluminium, tungsten and fluorine were observed in energy dispersive spectroscopy in Hy-Bond Resiglass. Conclusion: All these three elements (aluminium, tungsten and fluorine) have cytotoxic potential. The Fourier transform infrared spectroscopy revealed the presence of hydroxyethyl methacrylate in Hy-Bond Resiglass®, which has a cytotoxic potential

Evaluation of self-reported knowledge and understanding towards a blended research course among pharmacy students: Objective Search Literature Evaluation (OSLE) method validation

Background: The objective of the study was to evaluate the impact of classroom versus online Modular object-oriented dynamic learning environment (MOODLE)-based teaching on objective search literature evaluation (OSLE) score, as well as to validate the OSLE method for the assessment of research skills in pharmacy students. Methods: The four-station OSLE method was used to assess the performance and self-reflection at the end of each delivery mode. The students were asked to voluntarily vote for the preference of delivery mode in research courses. A hierarchical regression analysis was performed for variables predicting the “preference” for class-based teaching and/or MOODLE-based learning. Internal face and content validation were performed with students and faculty members not involved in the course teaching. External validation was performed with three professors working in different colleges in United Arab Emirates (UAE), Saudi Arabia and Qatar. Results: Thirty-five students completed the courses and showed significant improvement in self-reported reflection of pre-post knowledge and understanding. Findings suggested that 87.3% (110/126, 95%CI: 75.9 – 89.4, p < 0.001) achieved performance indicators and reported the OSLE method as an effective tool for the assessment of knowledge and understanding of research skills in pharmacy education. The predictive model suggested a strong positive effect associated with article appraisal, article application, self-reporting of knowledge and self-reporting of understating (R2 0.47, F-1.26, p < 0.001). Conclusion: The findings suggested the OSLE method as an effective tool of assessment in pharmacy education. A negative impact of MOODLE-based learning was found with self-reflection on knowledge

Electronic cigarettes use and perception amongst medical students: a cross sectional survey from Sindh, Pakistan

Objective: The manufacturers of electronic cigarettes (e-cigarettes) are actively marketing their product through electronic and social media. Undergraduate medical students are expected to have better knowledge and awareness as they directly interact with patients in their training, The purpose of this study is therefore, to determine knowledge, use and perception regarding e-cigarettes among medical students from Sindh, Pakistan. Results: A cross-sectional study was conducted between 1st July and 30th September 2016 at five different medical colleges situated in the second largest province of Sindh, Pakistan. The data was collected through a structured, self-administered questionnaire. Of the 500 students, the mean age was 21.5 ± 1.7 years and 58% were females. Over (65.6%) students were aware of e-cigarettes, 31 (6.2%) reported having used e-cigarettes, of whom 6 (1.2%) self-reported daily use. Users of conventional tobacco products were significantly more likely to have heard of e-cigarettes (87.6% vs 51.6%, p \u3c 0.001) and having used them (13.9% vs 1.3%, p \u3c 0.001). On multivariable logistic regression analysis we found a strong association of e-cigarette use with consumption of conventional cigarettes [OR: 10.6, 95% CI 3.6-30.8, p \u3c 0.001], use of smokeless tobacco products [OR: 7.9, 95% CI 2.7-23.4, p \u3c 0.001] however a weak association was observed for Shisha use [OR: 3.05, 95% CI 0.9-9.6, p = 0.05]

Sagittal jaw relationship of different types of cleft and non-cleft individuals

To investigate whether the craniofacial sagittal jaw relationship in patients with non-syndromic cleft differed from non-cleft (NC) individuals by artificial intelligence (A.I.)-driven lateral cephalometric (Late. Ceph.) analysis. The study group comprised 123 subjects with different types of clefts including 29 = BCLP (bilateral cleft lip and palate), 41 = UCLP (unilateral cleft lip and palate), 9 = UCLA (unilateral cleft lip and alveolus), 13 = UCL (unilateral cleft lip) and NC = 31. The mean age was 14.77 years. SNA, SNB, ANB angle and Wits appraisal was measured in lateral cephalogram using a new innovative A.I driven Webceph software. Two-way ANOVA and multiple-comparison statistics tests were applied to see the differences between gender and among different types of clefts vs. NC individuals. A significant decrease (p 0.005) showed insignificant variables in relation to type of clefts. No significant difference was also found in terms of gender in relation to any type of clefts and NC group. The present study advocates a decrease in sagittal development (SNA, ANB and Wits appraisal) in different types of cleft compared to NC individuals