80 research outputs found
The role of computer mediated environment and simulations in mediating consumers' personal and domestic life-worlds
This thesis examines the impacts of consumption of simulations. Using ethnographic methods, it explores how Irish consumers are using simulated products in lieu of the real and tangible, and how consumption of these simulations impact on their lifeworlds. Drawing heavily upon Jean Baudrillard’s conceptions of simulacra and hyperreality, it argues that consumers adapt to the differences between simulated and real worlds, by accepting the replacement of tangibles by simulations, and by aiming to situate their selves seamlessly between these two worlds. It further argues that within consumers’ lives cyberspace manifests itself as a field of tensions and discourses of power, and that consumers feel that mastery of this ethereal domain empowers them. It finds that consumers use cyberspace as a place to create lived experience narratives, and that these narratives become an important component of their life-worlds
Glucocorticoids induced allergic reaction
Glucocorticoids can cause allergic reaction in rare cases. A ten year old boy, known asthmatic, was treated with intramuscular injection of glucocorticoids, followed by nausea, vomiting and abdominal pain. His lips turned pale along with palpitation and light headache. His right eye lid and lower lip were swollen. Heart rate was 177/min, and BP was 66/46 mmHg,. Patient spontaneously improved and symptoms resolved. IV fluids bolus, antihistamines or epinephrine were not required. The case was seen in September 2012
Performance evaluation of cardiac troponin I assay: A comparison between the point-of-care testing radiometer AQT90 FLEX and the central laboratory siemens advia centaur analyzer
Background: To validate the point of care testing (POCT) Trop-I analyzer and compare it with a central laboratory-based chemiluminescence immunoassay, in order to evaluate its performance for use in critical care areas. Moreover, for clinical decision-making, it is imperative to know the extent to which patient stratification will differ based on the analytic method being used. In particular, the aim of this study was to evaluate the analytical performance of the point-of-care analyzer and demonstrate the agreement with the central laboratory measurements in patients presenting to the emergency department (ED) with chest pain and suspected acute coronary syndrome (ACS).Methods: This cross-sectional study was performed at the section of chemical pathology, department of pathology and laboratory medicine, the Aga Khan University (AKU), Karachi, from October to November 2017. Samples from patients and the quality control material of Trop-I were analyzed for imprecision, linearity, and method comparison on Advia Centaur (Siemens Diagnostics, CA, USA), and the AQT90 FLEX analyzer (Radiometer Medical ApS, Brønshøj, Denmark) with photometric detection at the section of chemical pathology, AKU. Statistical analysis was done using Microsoft Excel (Microsoft Corporation, Washington, United States) and EP Evaluator version 10.3.0.556 (Data Innovations, LLC, VT, US). Quantitative variables were represented in terms of mean ± SD. For precision, the computed SD was compared with allowable random error. Furthermore, Cohen’s kappa was applied to observe the agreement between the two methods.Results: The Trop-I Precision study on the POCT analyzer showed a coefficient of variation (CV) of 2.4% using a pooled patient sample with a mean Trop-I of 2.15 ± 0.05 ng/ml. Three standards ranging from 0.034 to 1.316 ng/ml were run in triplicate to verify accuracy and linearity. The allowable systematic error (SEa) was 10.0%. The maximum deviation for a mean recovery from 100% was 4.1%. All three of the mean recoveries were accurate and within the allowable error limits. The results were linear with slope 1.04, intercept 0.0. On a method comparison, Trop-I showed good agreement, yielding a kappa value of 0.95.Conclusion: This study has validated the performance of a POCT Trop-I assay against a central laboratory immunoassay and found acceptable results. POCT assays for cTnI should be implanted in emergency settings to ensure the fast triage of patients with chest pain, as well as timely diagnosis
SOCIAL MEDIA TECHNOLOGIES AND THEIR BENEFITS IN HIGHER EDUCATION INSTITUTIONS: A SURVEY OF JAZAN UNIVERSITY
The Saudi Arabia Vision 2030 plan is, in fact, an endeavor to establish the Kingdom as one of the most advanced and developed countries of the world. An Innovative approach and strategies are the main objectives of the Vision 2030 for the development of the country. Academia is focusing on various methodologies, which will help in elevating the importance of Saudi Higher Education Institution (HEI) to international standards. Social Media Technologies (SMTs) has turned into a developing phenomenon by numerous and diverse classifications in community and educational practice. The term SMTs denotes to web-oriented and mobile based applications that enable peoples and societies to produce, involve, and share new applications or current content, in digital world through multi-path communication. The emergence of Social Media Technologies has enforced mentors to think differently about the way learning occurs. HEI are investigating the use of various domains of Social Media Technologies for pedagogical purposes. These domains comprise blogs for instructions, wikis for shared content creation and podcasting to record teaching materials and making videos. However, HEI of the Kingdom are lagging behind in the incorporation of SMTs in learning and teaching. This research aims to establish contemporary instructions, learning practices, attitudes and scope of SMTs in the HEI pedagogy. A case study has been carried out in Jazan University that involved a mixed method approach to explore the practice of Social Media Technologies in the educational process
Comparative profiling of biomarker psoralen in antioxidant active extracts of different species of genus Ficus by validated HPTLC method
Background: A simple but sensitive HPTLC method was developed for the comparative evaluation of psoralen in antioxidant active extracts of leaves of five different species of genus Ficus (Ficus carica, Ficus nitida, Ficus ingens, Ficus palmata and Ficus vasta).Materials and Methods: HPTLC studies were carried out using CAMAG HPTLC system on Glass-backed silica gel 60F254 HPTLC pre-coated plates using selected mobile phase toluene: methanol (9:1). The antioxidant activity was carried out, using DPPH free radical method.Results: Among all the five species of genus Ficus, F. palmata and F. carica exhibited comparatively good antioxidant activity in DPPH assay. The developed HPTLC method was found to give a compact spot for psoralen (Rf = 0.55±0.001) at 305 nm. The regression equation and r2 for psoralen was found to be Y= 4.516X+35.894 and 0.998. The quantification result revealed the presence of psoralen in only two species, F. carica (0.24%, w/w) and F. palmata (1.88%, w/w) which supported their supremacy for anti-oxidant potential over other species. The statistical analysis proved that the developed method was reproducible and selective.Conclusion: The developed method can be used as an important tool to assure the therapeutic dose of active ingredients in herbal formulations as well as for standardization and quality control of bulk drugs and in-process formulations. This method can also be employed for the further study of degradation kinetics and determination of psoralen in plasma and other biological fluids.Key words: Ficus species, psoralen, antioxidant, HPTLC, Validation
Impact of delay in admission on the outcome of critically ill patients presenting to the emergency department of a tertiary care hospital from low income country
Objective: To assess the impact of admission delay on the outcome of critical patients.Methods: The retrospective chart review was done at Aga Khan University Hospital, Karachi, and comprised adult patients visiting the Emergency Department during 2010. Outcome measures assessed were total hospital length of stay, total cost of the visit and in-hospital mortality. Patients admitted within 6 hours of presentation at Emergency Department were defined as non-delayed. Data was analysed using SPSS 19.Results: Of the 49,532 patients reporting at the Emergency Department during the study period, 17,968 (36.3%) were admitted. Of them 2356(13%) were admitted to special or intensive care units, 1595(67.7%) of this sub-group stayed in the Emergency Department for \u3e6 hours before being shifted to intensive care. The study focussed on 325(0.65%) of the total patients; 164(50.5%) in the non-delayed group and 161(49.5%) in the delayed group. The admitting diagnosis of myocardial infarction (p=0.00) and acute coronary syndrome (p=0.01) was significantly more common in the non-delayed group compared to other diagnoses like cerebrovascular attacks (p=0.03) which was significantly more common in the delayed group. There was no significant difference in the hospital length of stay between the two groups (p\u3e0.05). The Emergency Department cost was significantly increased in the delayed group (p0.05).CONCLUSIONS: There was no significant difference in the delayed and non-delayed groups, but long Emergency Department stays are distressing for both physicians and patients
A framework for implementing best laboratory practices for non-integrated point of care tests in low resource settings
The method we respond to pandemics is still inadequate
for dealing with the point of care testing (POCT)
requirements of the next large epidemic. The proposed
framework highlights the importance of having
defined policies and procedures in place for non-integrated
POCT to protect patient safety. In the absence
of a pathology laboratory, this paradigm may help in
the supply of diagnostic services to low-resource centers.
A review of the literature was used to construct
this POCT framework for non-integrated and/or unconnected
devices. It also sought professional advice
from the Chemical Pathology faculty, quality assurance
laboratory experts and international POCT experts
from the International Federation of Clinical Chemistry
and Laboratory Medicine (IFCC). Our concept presents
a comprehensive integrated and networked approach
to POCT with direct and indirect clinical laboratory supervision, particularly for outpatient and inpatient
care in low-resource health care settings.https://ifcc.org/ifcc-communications-publications-division-cpd/ifcc-publications/ejifcc-journal/am2024Chemical PathologySDG-03:Good heatlh and well-bein
COMPARATIVE PROFILING OF BIOMARKER PSORALEN IN ANTIOXIDANT ACTIVE EXTRACTS OF DIFFERENT SPECIES OF GENUS FICUS BY VALIDATED HPTLC METHOD
Background: A simple but sensitive HPTLC method was developed for the comparative evaluation of psoralen in antioxidant active extracts of leaves of five different species of genus Ficus (Ficus carica, Ficus nitida, Ficus ingens, Ficus palmata and Ficus vasta).
Materials and Methods: HPTLC studies were carried out using CAMAG HPTLC system on Glass-backed silica gel 60F254 HPTLC pre-coated plates using selected mobile phase toluene: methanol (9:1). The antioxidant activity was carried out, using DPPH free radical method.
Results: Among all the five species of genus Ficus, F. palmata and F. carica exhibited comparatively good antioxidant activity in DPPH assay. The developed HPTLC method was found to give a compact spot for psoralen (Rf = 0.55±0.001) at 305 nm. The regression equation and r2 for psoralen was found to be Y= 4.516X+35.894 and 0.998. The quantification result revealed the presence of psoralen in only two species, F. carica (0.24%, w/w) and F. palmata (1.88%, w/w) which supported their supremacy for anti-oxidant potential over other species. The statistical analysis proved that the developed method was reproducible and selective.
Conclusion: The developed method can be used as an important tool to assure the therapeutic dose of active ingredients in herbal formulations as well as for standardization and quality control of bulk drugs and in-process formulations. This method can also be employed for the further study of degradation kinetics and determination of psoralen in plasma and other biological fluids
Adapting Agriculture to Climate Change: A Synopsis of Coordinated National Crop Wild Relative Seed Collecting Programs across Five Continents
The Adapting Agriculture to Climate Change Project set out to improve the diversity,
quantity, and accessibility of germplasm collections of crop wild relatives (CWR). Between 2013 and
2018, partners in 25 countries, heirs to the globetrotting legacy of Nikolai Vavilov, undertook seed
collecting expeditions targeting CWR of 28 crops of global significance for agriculture. Here, we
describe the implementation of the 25 national collecting programs and present the key results. A total
of 4587 unique seed samples from at least 355 CWR taxa were collected, conserved ex situ, safety
duplicated in national and international genebanks, and made available through the Multilateral
System (MLS) of the International Treaty on Plant Genetic Resources for Food and Agriculture (Plant
Treaty). Collections of CWR were made for all 28 targeted crops. Potato and eggplant were the most
collected genepools, although the greatest number of primary genepool collections were made for
rice. Overall, alfalfa, Bambara groundnut, grass pea and wheat were the genepools for which targets
were best achieved. Several of the newly collected samples have already been used in pre-breeding
programs to adapt crops to future challenges.info:eu-repo/semantics/publishedVersio
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