Examining the Relationship Between Workplace Industry and COVID-19 Infection: A Cross-sectional Study of Canada's Largest Rapid Antigen Screening Program.

Objectives: To control virus spread while keeping the economy open, this study aimed to identify individuals at increased risk of COVID-19 transmission in the workplace using rapid antigen screening data.

Methods: Among adult participants in a large Canadian rapid antigen screening program (January 2021-March 2022), we examined screening, personal, and workplace characteristics and conducted logistic regressions, adjusted for COVID-19 wave, screening frequency and location, role, age group, and geography.

Results: Among 145,814 participants across 2707 worksites, 6209 screened positive at least once.

Do we want less automation?

AI may provide a path to decrease inequality.

Cystic endometriosis in a degenerated sub-serous myoma in a sub-fertile woman: A case report.

Introduction And Importance: Leiomyoma is the most common gynecologic tumor which may show atypical locations and degenerations. Cystic degeneration is said to be found in 4 % of all degenerations. Endometriosis, the presence of endometrial glands and stroma at extrauterine sites, is a common gynaecological condition seen in 10 % to 15 % of reproductive-age women usually being associated with various degrees of fertility problems.

Nanostructured plasmonic chips employing nanopillar and nanoring hole arrays for enhanced sensitivity of SPR-based biosensing.

We present a theoretical analysis of the different nanostructured plasmonic sensor chips-consisting of plasmonic nanostructures present on the surface of plasmonic thin films-interrogated using the Kretschmann configuration for highly sensitive localized sensing, with high tunability from the visible to the infrared regions. Rigorous coupled-wave analysis is performed to analyze all the proposed nanostructured sensor chips and compare their sensing performance. The sensitivity parameters are defined to focus on the detection of a thin layer of biomolecules on the surface of nanostructures.

Large-area and low-cost SERS substrates based on a gold-coated nanostructured surface fabricated on a wafer-scale.

This paper demonstrates a method to fabricate plasmonic nanostructures over a large area that can be implemented as SERS substrates. The proposed method comprises batch processes such as spin coating, reactive ion etching, and thin metal deposition. These processes can be performed on large wafers, resulting in large numbers of SERS substrates in a single run.

Large-scale implementation of rapid antigen testing system for COVID-19 in workplaces.

The transmission of coronavirus disease 2019 (COVID-19) in workplaces has been a persistent issue throughout the pandemic. In response, a not-for-profit initiative emerged to mitigate COVID-19 workplace transmission in Canada. We report the process for establishing a workplace frequent rapid antigen test (RAT) program.

False-Positive Results in Rapid Antigen Tests for SARS-CoV-2.

This study examines the incidence of false-positive results in a sample of rapid antigen tests used to serially screen asymptomatic workers throughout Canada.

Prevalence of Hysterectomy among Gynecological Surgeries in a Tertiary Care Hospital.

Introduction: Hysterectomy is the most common gynecological procedure. Over the last decade, the minimally invasive approach has been practiced more frequently. Fibroid uterus being the most common indication for hysterectomy justifies this minimal approach, however, whenever feasible, vaginal hysterectomy can be the preferred route.

Prevalence and risk factors for maternal mortality at a tertiary care centre in Eastern Nepal- retrospective cross sectional study.

Background: The maternal mortality ratio is a significant public health indicator that reflects the quality of health care services. The prevalence is still high in developing countries than in the developed countries. This study aimed to determine the MMR and identify the various risk factors and causes of maternal mortality.

Emergency laparoscopic repair of coitus-induced vaginal cuff dehiscence: a case report.

Background: Vaginal cuff dehiscence is a rare but potentially grave complication after total hysterectomy. Abdominal or pelvic contents are at risk of evisceration through the vaginal opening. It is associated with significant risk for patient morbidity, such as peritonitis, bowel injury, and sepsis.

Two-color pyrometry system to eliminate optical errors for spatially resolved measurements in flames.

Two-color (2C) pyrometry has long been used to measure flame temperature and soot concentration from radiative emission in flames. While 2C pyrometry is not an absolute measurement in non-axisymmetric flames (such as diesel spray combustion), it is a desirable diagnostic for semi-quantitative or qualitative measurements since it requires minimal optical access and can utilize high-speed imaging to attain exceptional temporal and spatial resolutions. In this work, an improved optical configuration of 2C pyrometry is presented that (1) eliminates optical errors inherent in other designs and (2) uses off-the-shelf optics and a single camera.

Phase boundary detection in transient, evaporating high-pressure fuel sprays by rainbow schlieren deflectometry.

The rainbow schlieren deflectometry (RSD) technique is used to simultaneously identify the liquid and vapor boundaries during transient evolution of evaporating high-pressure fuel sprays. Traditionally, liquid and vapor phases require separate diagnostics, whereas this work relies upon a single technique to identify each phase, in addition to the previously demonstrated capability of RSD to measure local fuel-air mixing in the vapor zone. The proposed RSD methodology is a significant improvement over a previously published technique, i.

Risk Factors Related to Intrauterine Fetal Death.

Background: Intrauterine fetal death is a traumatic event. Stillbirth rate is an important indicator to assess the quality of antenatal care. The objective of the study was to identify the risk factors related to intrauterine fetal death in patients admitted with intrauterine fetal death.

Accuracy of Frozen Section with Histopathological Report in an Institute.

Introduction: Frozen section helps in rapid intra-operative diagnosis. It is commonly used during surgical procedures to detect malignancy so that modifications of surgery can be decided at the time of surgery on the table. Frozen section is also performed for evaluation of surgical margins and detection of lymph node metastasis.

Quantifying liquid boundary and vapor distributions in a fuel spray by rainbow schlieren deflectometry.

The rainbow schlieren deflectometry (RSD) technique is used to determine the liquid boundary and the fuel volume fraction distributions in the vapor region of a high-pressure fuel spray. Experiments were conducted in a constant pressure flow vessel, whereby a customized single-hole common-rail diesel injector is used to introduce n-heptane fuel into a coflow of low-speed ambient air at two different test conditions. Only the quasi-steady period of the fuel spray is considered, and multiple injections are performed to acquire statistically significant data at an image acquisition rate of 20 kHz.

A case report of hemophagocytic lymphohistiocytosis (HLH).

Hemophagocytic lymphohistiocytosis (HLH), is an uncommon, life-threatening hyperinflammatory syndrome caused by severe hypercytokinemia with excessive activation of lymphocytes and macrophages due to a highly stimulated but ineffective immune process. We report a case of Hemophagocytic Lymphohistiocytosis in a 15 year old boy presenting with fever, lymphadenopathy and pancytopenia due to infection caused by Klebsiella Pneumoniae and Acinetobacter.

Asymptomatic bacteriuria in pregnant women.

Introduction: Asymptomatic bacteriuria is the significant presence of bacteria in urine of an individual without symptoms. The aim of the study is to determine the prevalence of asymptomatic bacteriuria in pregnant women.

Methods: This study was a prospective study conducted in the department of Obstetrics and Gynaecology at B.

Electrocardiographic and enzymatic correlations with outcome in neonates with hypoxic-ischemic encephalopathy.

Background: Perinatal asphyxia leading to hypoxic-ischemic encephalopathy (HIE) is a common problem causing multi organ dysfunction including myocardial involvement which can affect the outcome.

Objective: To evaluate the myocardial dysfunction in neonates having HIE by electrocardiographic(ECG) and cardiac enzymes (CK Total, CK-MB and Troponin I) and find out the relationship with HIE and outcome.

Design/methods: This was a hospital based prospective study.

Abel inversion of deflectometric data: comparison of accuracy and noise propagation of existing techniques.

Abel inverse integral to obtain local field distributions from path-integrated measurements in an axisymmetric medium is an ill-posed problem with the integrant diverging at the lower integration limit. Existing methods to evaluate this integral can be broadly categorized as numerical integration techniques, semianalytical techniques, and least-squares whole-curve-fit techniques. In this study, Simpson's 1/3rd rule (a numerical integration technique), one-point and two-point formulas (semianalytical techniques), and the Guass-Hermite product polynomial method (a least-squares whole-curve-fit technique) are compared for accuracy and error propagation in Abel inversion of deflectometric data.

Miniature rainbow schlieren deflectometry system for quantitative measurements in microjets and flames.

Recent interest in small-scale flow devices has created the need for miniature instruments capable of measuring scalar flow properties with high spatial resolution. We present a miniature rainbow schlieren deflectometry system to nonintrusively obtain quantitative species concentration and temperature data across the whole field. The optical layout of the miniature system is similar to that of a macroscale system, although the field of view is smaller by an order of magnitude.

Superior chemotherapeutic efficacy of amphotericin B in tuftsin-bearing liposomes against Leishmania donovani infection in hamsters.

Chemotherapeutic efficacy of the amphotericin B (Amp B), which is the drug of choice for treatment of the leishmanial infections (kala-azar) that become resistant to the conventional chemotherapy using antimonials, has been examined in the Leishmania donovani infected hamsters after encapsulating the drug in tuftsin-free as well as tuftsin-bearing liposomes. The activity was significantly increased (p < 0.05) by delivering Amp B in tuftsin-free liposomes.

Temperature measurements in steady axisymmetric partially premixed flames by use of rainbow schlieren deflectometry.

We focus on the utility of rainbow schlieren as a tool for measuring the temperature of axisymmetric partially premixed flames (PPFs). Methane-air PPFs are established on a coannular burner. The flames involve two spatially distinct reaction zones, one in an inner premixed region that has a curved tip and a spatially planar wing portion and another that involves an outer nonpremixed zone in which intermediate species burn in air.