207 research outputs found

    VACCINE-INDUCED DEVELOPMENTAL DELAY: A CASE REPORT

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    Vaccines are weakened or dead microbes injected for the development of an acquired immunity as a preventive measure, also including the use of microbial proteins. The spectrum of adverse events following vaccination has been increasing as well with increasing number of reports detailing the events following immunization. The rate of morbidity and mortality of many communicable diseases has significantly decreased with time with relieve to the quality of life as well as the overall pharma economic cost. In this case report vaccine-induced developmental delay was observed in a child of 16 months of age. The child was born with low birth weight despite which the child was administered with hepatitis B vaccine, poliomyelitis vaccine, and bacillus Calmette-Guerin within 24 h of birth. Consecutive clinical outcomes followed throughout the years, which induced a developmental delay in this child. This case clearly signifies the need for more evidence-based implementation for the management of various diseases at secondary care hospitals

    Pharmaceutical Process Validation: A Mini Review

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    Pharmaceutical Process Validation emphasizes on process design elements and maintaining process control during commercialization and communicate that process validation is an ongoing program and align process validation activities with product lifecycle. According to GMP validation studies are essential part of GMP these are required to be done as per predefined protocols, the minimum that should be validated include process, testing and cleaning as a result such control procedure stablish to monitor the output and validation of manufacturing processes that may be responsible for variability of drug product. The validation study provide the accuracy, sensitivity, specificity and reproducibility of the test methods employed by the firms, shall be established and documented. Thus the validation is an essential part of the quality assurance

    Conducting Ethics Research in Prison: Why, Who, and What?

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    Decontamination of aerosolised bacteria from a pig farm environment using a pH neutral electrochemically activated solution (Ecas4 anolyte)

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    An electrochemically activated solution (ECAS), generated by electrolysis of a dilute sodium chloride solution in a four-chamber electrolytic cell (Ecas4), was tested as a sanitising aerosol in eliminating bacteria from the environment of a weaning room vacated 24-48h earlier, at a continuous flow pig farm. An ultrasonic humidifier was used to fill the environment with a fog (droplets with diameters of 1–5 μm) containing 0.25 ppm of hypochlorous acid. The weaning room was fogged for 3 min at 30 min intervals during five hours of aerosol disinfection. An innovative sample treatment with propidium monoazide dye in conjunction with cyclonic air sampling was optimised and adapted for discerning live/dead bacteria in subsequent molecular quantification steps. Without fogging, total bacterial load ranged from 5.06 ± 0.04 to 5.75 ± 0.04 Log10 CFU/m3. After the first hour of fogging, a 78% total bacterial reduction was observed, which further increased to > 97% after the second hour, > 99.4% after the third and 99.8% after the fourth hour, finally resulting in a 99.99% reduction from the farm environment over five hours. Unlike the current formaldehyde spray disinfection protocol, which requires a long empty period because of its hazardous properties, this economically viable and environmentally friendly disinfection protocol may significantly lower downtime. Moreover, ECAS fogging can be easily adapted to a variety of applications, including the elimination of pathogens from livestock farm air environment for disease prevention, as well as decontamination after disease outbreaks

    Size Dependence of the Nonlinear Elastic Softening of Nanoscale Graphene Monolayers under Plane-Strain Bulge Tests: A Molecular Dynamics Study

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    The pressure bulge test is an experimental technique to characterize the mechanical properties of microscale thin films. Here, we perform constant-temperature molecular dynamics simulations of the plane-strain cylindrical bulge test of nanosized monolayer graphene subjected to high gas pressure induced by hydrogen molecules. We observe a nonlinear elastic softening of the graphene with an increase in hydrogen pressure due to the stretching and weakening of the carbon-carbon bonds; we further observe that this softening behavior depends upon the size of the graphene monolayers. Our simulation results suggest that the traditional microscale bulge formulas, which assume constant elastic moduli, should be modified to incorporate the size dependence and elastic softening that occur in nanosized graphene bulge tests

    Palliative care initiation in pediatric oncology patients: A systematic review

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    Palliative care (PC) aims to improve quality of life for patients and their families. The World Health Organization and American Academy of Pediatrics recommend that PC starts at diagnosis for children with cancer. This systematic review describes studies that reported PC timing in the pediatric oncology population. The following databases were searched: PubMed, Web of Science, CINAHL, and PsycInfo databases. Studies that reported time of PC initiation were independently screened and reviewed by 2 researchers. Studies describing pilot initiatives, published prior to 1998, not written in English, or providing no empirical time information on PC were excluded. Extracted data included sample characteristics and timing of PC discussion and initiation. Of 1120 identified citations, 16 articles met the inclusion criteria and comprised the study cohort. Overall, 54.5% of pediatric oncology patients received any palliative service prior to death. Data revealed PC discussion does not occur until late in the illness trajectory, and PC does not begin until close to time of death. Despite efforts to spur earlier initiation, many pediatric oncology patients do not receive any palliative care service, and those who do, predominantly receive it near the time of death. Delays occur both at first PC discussion and at PC initiation. Efforts for early PC integration must recognize the complex determinants of PC utilization across the illness timeline

    Spray and aerosolised pH-neutral electrochemically activated solution reduces Salmonella Enteritidis and total bacterial load on egg surface

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    Published: 13 January 2021The effectiveness of sprayed and aerosolised pH-neutral electrochemically activated solutions (ECAS) containing 150 mg/L of free available chlorine in reducing total bacteria load and artificially inoculated Salmonella enterica serotype Enteritidis 11RX on eggs surfaces was investigated. Treatment groups included untreated control, sodium hypochlorite (positive control), sprayed and aerosolised water and sprayed and aerosolised ECAS. Sprayed ECAS (150 mg/L, 45 s) showed a significant reduction in total bacterial load (2.2 log reduction, p < 0.0001) and S. Enteritidis (5.4 log reduction, p < 0.0001) when compared with the untreated control. Aerosolised ECAS (120 s) was effective in reducing both the total bacterial load (1.4 log reduction, p < 0.01) and S. Enteritidis (4.2 log reduction, p = 0.0022). However, aerosolised ECAS (60 s) only significantly reduced S. Enteritidis counts (2.8 log reduction, p < 0.0008), indicating that a longer time for bacterial reduction during fogging sanitisation is needed. Tests performed with one egg per oscillating tray were more effective in reducing both the total bacterial load and the S. Enteritidis counts than those with three eggs per oscillating tray. Sprayed ECAS (45 s) and aerosolised ECAS (120 s) did not deteriorate the egg cuticle integrity (DEab *), which was evaluated using Cuticle Blue dye solution and colour intensity measurement. Overall, both the reduction in total bacteria counts and S. Enteritidis from the egg surface and retention of cuticle integrity suggest that sprayed and aerosolised ECAS could be used as alternative sanitising approaches to improve the food safety aspect of table eggs.Sangay Tenzin 1, Sergio Ferro 2 , Samiullah Khan 3 , Permal Deo 4,* and Darren J. Trot

    Sapphire: A Configurable Crypto-Processor for Post-Quantum Lattice-based Protocols (Extended Version)

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    Public key cryptography protocols, such as RSA and elliptic curve cryptography, will be rendered insecure by Shor’s algorithm when large-scale quantum computers are built. Cryptographers are working on quantum-resistant algorithms, and lattice-based cryptography has emerged as a prime candidate. However, high computational complexity of these algorithms makes it challenging to implement lattice-based protocols on low-power embedded devices. To address this challenge, we present Sapphire – a lattice cryptography processor with configurable parameters. Efficient sampling, with a SHA-3-based PRNG, provides two orders of magnitude energy savings; a single-port RAM-based number theoretic transform memory architecture is proposed, which provides 124k-gate area savings; while a low-power modular arithmetic unit accelerates polynomial computations. Our test chip was fabricated in TSMC 40nm low-power CMOS process, with the Sapphire cryptographic core occupying 0.28 mm2 area consisting of 106k logic gates and 40.25 KB SRAM. Sapphire can be programmed with custom instructions for polynomial arithmetic and sampling, and it is coupled with a low-power RISC-V micro-processor to demonstrate NIST Round 2 lattice-based CCA-secure key encapsulation and signature protocols Frodo, NewHope, qTESLA, CRYSTALS-Kyber and CRYSTALS-Dilithium, achieving up to an order of magnitude improvement in performance and energy-efficiency compared to state-of-the-art hardware implementations. All key building blocks of Sapphire are constant-time and secure against timing and simple power analysis side-channel attacks. We also discuss how masking-based DPA countermeasures can be implemented on the Sapphire core without any changes to the hardware

    Patterns of older and younger prisoners' primary healthcare utilization in Switzerland

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    Purpose The purpose of this paper is to identify primary health concerns prompting older and younger prisoners in Switzerland to consult a nurse or a general practitioner (GP) within the prison healthcare setting, and explores if these reasons for visits differ by age group (49 years and younger vs 50 years and older). The authors used 50 years and older as the benchmark for older prisoners in light of literature indicating accelerated aging among prisoners. Design/methodology/approach Retrospective information from medical records of 406 prisoners were collected for a period of six months. This study analyzed the reasons for which prisoners visited the nurses and GPs available to them through the prison healthcare service. These reasons were coded using the International Classification of Primary Care-version 2. Data were analyzed descriptively and four generalized linear models were built to examine whether there was an age group difference in reasons for visiting nurses and GPs. Findings The health reasons for visiting nurses and GPs by 380 male prisoners from 13 Swiss prisons are presented. In the six month period, a total of 3,309 reasons for visiting nurses and 1,648 reasons for visiting GPs were recorded. Prisoner participants' most common reasons for both visits were for general and unspecified complaints and musculoskeletal problems. Older prisoners sought significantly more consultations for cardiovascular and endocrine problems than younger prisoners. Research limitations/implications Nurses play an important role in addressing healthcare demands of prisoners and coordinating care in Swiss prisons. In light of age-related healthcare demands, continuing education and training of both nurses and GPs to adequately and efficiently address the needs of this prisoner group is critical. Allowing prisoners to carry out some care activities for minor self-manageable complaints will reduce the demand for healthcare. Originality/value This study presents unique data on healthcare concerns for which prisoners visit prison nurses and GPs. It highlights the varied needs of older prisoners as well as how these needs are addressed based on the availability of the primary healthcare provider within the prison
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