Hybrid YOLOv3 and ReID intelligent identification statistical model for people flow in public places.

The statistical model for automatic flow recognition is significant for public place management. However, the current model suffers from insufficient statistical accuracy and low lightweight. Therefore, in this study, the structure of the lightweight object detection model "You Only Live Once v3" is optimized, and the "Deep Simple Online Real-Time Tracking" algorithm with the "Person Re-Identification" module is designed, so as to construct a statistical model for people flow recognition. The results showed that the median PersonAP of the designed model was 94.2%, the total detection time was 216 ms, the Rank-1 and Rank-10 were 87.2% and 98.6%, respectively, and the maximum occupied memory of the whole test set was 2.57 MB, which was better than all comparison models. The results indicate that the intelligent identification statistical model for public crowd flow obtained through this design and training has higher statistical accuracy, less computational resource consumption, and faster computing speed. This has certain application space in the management and guidance of crowd flow in public places.

Operationalizing Street Harassment Using Survey Instruments: A Systematic Review of Measuring Harassment in Public Spaces Using Surveys.

Quantitative research has an omitted variable problem when it comes to measuring and modeling non-criminal threats in the urban environment. This systematic review identified questionnaires and surveys used to measure incidences of street harassment/harassment in public, to discuss how they operationalize street harassment/harassment in public, and to report the characteristics of those with the best evidence of reliability and validity. We searched five databases and included peer-reviewed articles published in English from 1994 to 2022 that measured street harassment using a survey instrument. Our search resulted in 54 included studies. Of these studies, 16 primarily focused on understanding street harassment. To design effective prevention strategies in response to street harassment, research must first effectively measure the prevalence of street harassment and the contexts in which street harassment occurs. Due to the inconsistencies in definition, our review identified prevalence rates were inconsistent. Incidents of street harassment provide a promising avenue for future research, although scholars must first seek to appropriately operationalize this concept in survey research. We provide suggestions for future research that seeks to use surveys to understand harassment in public places.

Far-UV-C irradiation promotes synergistic bactericidal action against adhered cells of Escherichia coli and Staphylococcus epidermidis.

The contamination of indoor areas is a global health problem that can cause the dispersion of infectious diseases. In that sense, it is urgent to find new strategies applying a lower concentration of the traditional chemicals used for cleaning and disinfection. Ultraviolet radiation (UV), in particular far-UV-C (200-225 nm), has emerged as a successful, powerful, easy-to-apply, and inexpensive approach for bacterial eradication that still requires scientific assessment. This study investigated new strategies for disinfection based on far-UV-C (222 nm) combined with chlorine and mechanical cleaning, providing an innovative solution using low doses. The bactericidal activity of far-UV-C (222 nm) was tested at an intensity of irradiation from 78.4 µW/cm2 to 597.7 µW/cm2 (for 1 min) against Escherichia coli and Staphylococcus epidermidis adhered on polystyrene microtiter plates. It was further tested in combination with mechanical cleaning (ultrasounds for 1 min) and free chlorine (0.1, 0.5, and 1 mg/L for 5 min). The triple combination consisting of mechanical cleaning + free chlorine (0.5 mg/L) + far-UV-C (54 mJ/cm2) was tested against cells adhered to materials found in hospital settings and other public spaces: polyvinyl chloride (PVC), stainless steel (SS), and polyetheretherketone (PEEK). Disinfection with far-UV-C (54 mJ/cm2) and free chlorine at 0.5 mg/L for 5 min allowed a total reduction of culturable E. coli cells and a logarithmic reduction of 2.98 ± 0.03 for S. epidermidis. The triple combination of far-UV-C, free chlorine, and mechanical cleaning resulted in a total reduction of culturable cells for both adhered bacteria. Bacterial adhesion to PVC, SS, and PEEK occurred at distinct extents and influenced the bactericidal activity of the triple combination, with logarithmic reductions of up to three. The overall results highlight that, based on culturability assessment, far-UV-C (54 mJ/cm2) with chlorine (0.5 mg/L; 5 min) and mechanical cleaning (1 min) as an efficient disinfection strategy using mild conditions. The combination of culturability and viability assessment of disinfection is recommended to detect regrowth events and increase the effectiveness in microbial growth control.

Risk factors associated with dog endoparasites infection spread in East Slovak Lowland.

This study aimed to determine the prevalence of endoparasites in dog feces from public places, investigate the occurrence of endoparasites in soil, and identify potential risk factors associated with the dog endoparasites infection spread in East Slovak Lowland - the region near the EU border with Ukraine. In a one-year study, a total of 803 dog fecal samples and 148 soil samples from public places were examined for the presence of endoparasite developmental stages. In general, 43.59 % of dog excrements were positive. Six different species of intestinal parasites were detected: Toxocara canis (22.65 %), Trichuris vulpis (14.07 %), family Ancylostomatidae (10.09 %), Capillaria aerophilla (5.60 %), Ascaris spp. (1.49 %). Altogether, 52.03 % of soil samples were positive for at least one endoparasites species. The occurrence of parasitic eggs in the soil was as follows: Ascaris spp. (37.16 %), Toxocara spp. (29.05 %), Trichuris spp. (29.05 %) %), family Ancylostomatidae (2.03 %) and Toxascaris leonina (2.03 %). The occurrence of endoparasites between the towns and villages varied significantly. The distribution of endoparasites in dogs and soil was affected by the population density, the minority people living in the studied territory, the number of people living in poor hygienic conditions with limited access to drinking water and the usage of sewerage. Persisting endoparasitic contamination of the environment in East Slovak Lowland forms a reservoir with zoonotic potential representing public and environmental health problems.

Characteristics and Treatment Outcomes of Out-of-Hospital Cardiac Arrests Occurring in Public Places: A National Population-Based Observational Study.

Sudden cardiac arrest, particularly out-of-hospital cardiac arrest (OHCA), is a global public health concern. However, limited research exists on the epidemiology of OHCAs occurring in public places, trends and impact of bystander intervention, and influence of extraordinary circumstances. This study investigated the epidemiological factors, bystander characteristics, and outcomes of OHCAs that occurred in public places in South Korea from 2016 to 2021 and analyzed the impact of the coronavirus disease 2019 (COVID-19) pandemic. A retrospective analysis was conducted using an Out-of-Hospital Cardiac Arrest Surveillance database, including 33,206 cases of OHCA that occurred in public places. Cases with do-not-resuscitate orders or insufficient data were excluded. A steady increase in bystander-performed cardiopulmonary resuscitation over the years and a constant decrease in bystander automated external defibrillator (AED) use were observed. Survival-to-discharge rates for OHCAs remained relatively steady until a marginal decrease was observed during the pandemic (pandemic, 13.1%; pre-pandemic, 14.4%). Factors affecting survival included the presence of a shockable rhythm, witnessed arrest, cardiac arrest due to disease, use of bystander AED, and period relative to the COVID-19 pandemic. These findings emphasize the critical role of bystanders in outcomes of OHCAs and inform public health strategies on better management of OHCAs in public places.

[Evaluation of thermal environment and human thermal comfort in 8 types of public places from 2019 to 2021].

Objective: To evaluate the thermal environment of different types of public places and the thermal comfort of employees, so as to provide scientific basis for the establishment of microclimate standards and health supervision requirements. Methods: From June 2019 to December 2021, 50 public places (178 times) of 8 categories in Wuxi were selected, including hotels, swimming pools (gymnasiums), bathing places, shopping malls (supermarkets), barber shops, beauty shops, waiting rooms (bus station) and gyms. In summer and winter, microclimate indicators such as temperature and wind speed were measured in all kinds of places, combined with the work attire and physical activity of employees in the places. Fanger thermal comfort equation and center for the built environment (CBE) thermal comfort calculation tool were used to evaluate the predicted mean vote (PMV), predicted percent dissatisfied (PPD) and standard effective temperature (SET) according to the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) 55-2020. The modification effects of seasonal and temperature control conditions on thermal comfort were analyzed. The consistency of GB 37488-2019 "Hygienic Indicators and Limits in Public Places" and ASHRAE 55-2020 evaluation results on thermal environment was compared. Results: The thermal sensation of hotel, barber shop staff and the gym front-desk staff were moderate, while the thermal sensation of swimming place lifeguard, bathing place cleaning staff and gym trainer were slightly warm in summer and winter. Waiting room (bus station) cleaning and working staff, shopping mall staff felt slightly warm in summer and moderate in winter. Service staff in bathing places felt slightly warm in winter, while staff in beauty salons felt slightly cool in winter. The thermal comfort compliance of hotel cleaning staff and shopping mall staff in summer was lower than that in winter (χ(2)=7.01, 7.22, P=0.008, 0.007). The thermal comfort compliance of shopping mall staff in the condition of air conditioning off was higher than that in the condition of air conditioning on (χ(2)=7.01, P=0.008). The SET values of front-desk staff in hotels with different health supervision levels were significantly different (F=3.30, P=0.024). The PPD value and SET value of the front-desk staff, and the PPD value of cleaning staff of hotels above three stars were lower than those of hotels below three stars (P<0.05). The thermal comfort compliance of front-desk staff and cleaning staff in hotels above three stars was higher than that in hotels below three stars (χ(2)=8.33, 8.09, P=0.016, 0.018). The consistency of the two criteria was highest among waiting room (bus station) staff (100.0%, 1/1) and lowest among gym front-desk staff (0%, 0/2) and waiting room (bus station) cleaning staff (0%, 0/1) . Conclusion: There are different degrees of thermal discomfort in different seasons, under the condition of air conditioning and health supervision, and the microclimate indicators can not fully reflect the thermal comfort of human body. The health supervision of microclimate should be strengthened, the applicability of health standard limit value should be evaluated in many aspects, and the thermal comfort of occupational group should be improved.

Survey of Residents' Satisfaction with the Environmental Sanitation of Key Public Places Under the Background of National Healthy City - China, 2021.

What is already known about this topic?: Sanitation of public places has been the focus of environmental sanitation construction in China for many years. It is critical to achieving the goal of building national healthy cities and counties. What is added by this report?: The results showed that in all types of areas, residents' satisfaction with the sanitation of railway stations and other places of transportation ranked first, and farmers' markets ranked last. What are the implications for public health practice?: This study provides a suitable reference for government decision-makers to effectively improve the sanitation situation of key public places and to further construct national healthy cities and counties.

Evaluation of thermal environment and human thermal comfort in 8 types of public places from 2019 to 2021 / 中华劳动卫生职业病杂志

Objective: To evaluate the thermal environment of different types of public places and the thermal comfort of employees, so as to provide scientific basis for the establishment of microclimate standards and health supervision requirements. Methods: From June 2019 to December 2021, 50 public places (178 times) of 8 categories in Wuxi were selected, including hotels, swimming pools (gymnasiums), bathing places, shopping malls (supermarkets), barber shops, beauty shops, waiting rooms (bus station) and gyms. In summer and winter, microclimate indicators such as temperature and wind speed were measured in all kinds of places, combined with the work attire and physical activity of employees in the places. Fanger thermal comfort equation and center for the built environment (CBE) thermal comfort calculation tool were used to evaluate the predicted mean vote (PMV), predicted percent dissatisfied (PPD) and standard effective temperature (SET) according to the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) 55-2020. The modification effects of seasonal and temperature control conditions on thermal comfort were analyzed. The consistency of GB 37488-2019 "Hygienic Indicators and Limits in Public Places" and ASHRAE 55-2020 evaluation results on thermal environment was compared. Results: The thermal sensation of hotel, barber shop staff and the gym front-desk staff were moderate, while the thermal sensation of swimming place lifeguard, bathing place cleaning staff and gym trainer were slightly warm in summer and winter. Waiting room (bus station) cleaning and working staff, shopping mall staff felt slightly warm in summer and moderate in winter. Service staff in bathing places felt slightly warm in winter, while staff in beauty salons felt slightly cool in winter. The thermal comfort compliance of hotel cleaning staff and shopping mall staff in summer was lower than that in winter (χ(2)=7.01, 7.22, P=0.008, 0.007). The thermal comfort compliance of shopping mall staff in the condition of air conditioning off was higher than that in the condition of air conditioning on (χ(2)=7.01, P=0.008). The SET values of front-desk staff in hotels with different health supervision levels were significantly different (F=3.30, P=0.024). The PPD value and SET value of the front-desk staff, and the PPD value of cleaning staff of hotels above three stars were lower than those of hotels below three stars (P<0.05). The thermal comfort compliance of front-desk staff and cleaning staff in hotels above three stars was higher than that in hotels below three stars (χ(2)=8.33, 8.09, P=0.016, 0.018). The consistency of the two criteria was highest among waiting room (bus station) staff (100.0%, 1/1) and lowest among gym front-desk staff (0%, 0/2) and waiting room (bus station) cleaning staff (0%, 0/1) . Conclusion: There are different degrees of thermal discomfort in different seasons, under the condition of air conditioning and health supervision, and the microclimate indicators can not fully reflect the thermal comfort of human body. The health supervision of microclimate should be strengthened, the applicability of health standard limit value should be evaluated in many aspects, and the thermal comfort of occupational group should be improved.

Long-term monitoring of SARS-CoV-2 RNA in sewage samples from specific public places and STPs to track COVID-19 spread and identify potential hotspots.

Coronavirus pandemic started in March 2020 and since then has caused millions of deaths worldwide. Wastewater-based epidemiology (WBE) can be used as an epidemiological surveillance tool to track SARS-CoV-2 dissemination and provide warning of COVID-19 outbreaks. Considering that there are public places that could be potential hotspots of infected people that may reflect the local epidemiological situation, the presence of SARS-CoV-2 RNA was analyzed by RT-qPCR for approximately 16 months in sewage samples from five public places located in the metropolitan area of Belo Horizonte, MG, Brazil: the sewage treatment plant of Confins International Airport (AIR), the main interstate bus terminal (BUS), an upscale shopping centre (SHC1), a popular shopping centre (SHC2) and a university institute (UNI). The results were compared to those of the influent sewage of the two main sewage treatment plants of Belo Horizonte (STP1 and STP2). Viral monitoring in the STPs proved to be an useful regional surveillance tool, reflecting the trends of COVID-19 cases. However, the viral concentrations in the samples from the selected public places were generally much lower than those of the municipal STPs, which may be due to the behaviour of the non-infected or asymptomatic people, who are likely to visit these places relatively more than the symptomatic infected ones. Among these places, the AIR samples presented the highest viral concentrations and concentration peaks were observed previously to local outbreaks. Therefore, airport sewage monitoring can provide an indication of the regional epidemiological situation. For the other places, particularly the UNI, the results suggested a greater potential to detect the infection and trace cases especially among employees and regular attendees. Taken together, the results indicate that for a regular and permanent sentinel sewage surveillance the sewage from STPs, AIR and UNI could be monitored.

Measurement of contagion spatial spread probability in public places: A case study on COVID-19.

The scale and scope of the COVID-19 epidemic have highlighted the need for timely control of viral transmission. This paper proposed a new spatial probability model of epidemic infection using an improved Wasserstein distance algorithm and Monte Carlo simulation. This method identifies the public places in which COVID-19 spreads and grows easily. The Wasserstein Distance algorithm is used to calculate the distribution similarity between COVID-19 cases and the public places. Further, we used hypothesis tests and Monte Carlo simulation to estimate the spatial spread probability of COVID-19 in different public places. We used Snow's data to test the stability and accuracy of this measurement. This verification proved that our method is reliable and robust. We applied our method to the detailed geographic data of COVID-19 cases and public places in Wuhan. We found that, rather than financial service institutions and markets, public buildings such as restaurants and hospitals in Wuhan are 95 percent more likely to be the public places of COVID-19 spread.

Impacts of the protective measures taken for the COVID-19 pandemic on water consumption and post meter leakages in public places.

Adequate, secure, and sustainable water supply gained utmost importance as an essential public service during the COVID-19 pandemic. The aim of this research study is to investigate impacts of the protective measures taken for the COVID-19 pandemic on water consumption and post meter leakages in public places. A total of 22 pilot study sites (PSS) representing schools, graveyards, parks, mosques, public toilets, a university building, and a sport facility were chosen to apply this study. The PSS were equipped with smart meters with different sizes that were capable of measuring the flow rates at short intervals of 15 min. The flow rates were continuously monitored at the PSS for more than 1 year before and during the COVID-19 pandemic in 2019 and 2020. Post meter leakages were determined based on the minimum night flow (MNF). The monitoring results showed a considerable decrease (42%) in the total flow rates at public places because of the lockdown measures, but excessive post meter leakages (72% of total flow rates) were also observed. Additionally, the decrease in flow rates adversely affected measuring accuracy of the meters and thereby increased the apparent water losses. Control of post meter leakages and selection of appropriate size of meters are important for efficient use of urban water. Water and energy savings besides reduction in greenhouse gas emissions are the main environmental benefits of leakage control. The use of smart technologies contributes to efficient and sustainable management of urban water demand, but raising public awareness for conservation of water is essential.

Compliance with smoke-free policies at indoor and outdoor public places: an observational study in Pakistan.

BACKGROUND: In 2002, the Government of Pakistan implemented a national law governing the use of tobacco products. The law included smoke-free policies banning smoking in all public places, and required no-smoking signage to be displayed at all such venues. Compliance with smoke-free policies is imperative, as it protects the health of nonsmokers. Almost two decades later, efforts to assess compliance with smoke-free policies in Karachi have been lacking, with only one study conducted in 2016. AIMS: To investigate smoke-free compliance across public places in Karachi, the most populous city in Pakistan. METHODS: A cross-sectional observational study was conducted in the east and south districts of Karachi between October and December 2019. Data pertaining to evidence of smoking (observed smoking, cigarette butt litter, and display of ashtrays/ similar instruments), the presence of designated smoking areas/rooms (DSAs/DSRs), and the display and location of no-smoking signage were collected via direct observations. Results are reported using descriptive statistics. RESULTS: Observations were conducted at 1704 indoor and outdoor public venues. Among the sample, 972 (57%) were compliant with the composite indicator assessing evidence of smoking. DSAs were observed at 104 (6%) places and DSRs at 16 (1%) places. No-smoking signage was displayed at the main entrance of 104 (6%) places and inside 174 (10%) places. CONCLUSION: Compliance with smoke-free policies is lacking in Karachi. Enhanced efforts by enforcement agencies and venue managers are needed to establish 100% smoke-free public places across Karachi.

Living the everyday of dementia friendliness: Navigating care in public spaces.

Dementia friendly communities are a priority for international policymaking aimed at tackling the social exclusion of people living with dementia. However, what constitutes a dementia friendly community is not well defined nor understood. In this article, we explore what constitutes the enactment of care in a dementia friendly community, focusing on commercial, leisure public places. Through qualitative interviews with carers in the North East of England, we examine how elements of social and material environments shape meaningful everyday practices of care outside the home. Drawing from the literature on materialities of care, we examine three everyday activities: eating out, going to the cinema and shopping. Maintaining such activities in public is part of keeping on with normal family life, but they can also expose individuals to stigmatising judgements by outsiders. Despite this, a complex array of material things, people, places and immaterial qualities such as ambience can come together to make care possible. We suggest there is a need to promote a less rigid, more flexible ethos in these public places. Through a recognition of the relational materialities of care, public spaces could do more to become places where people living with dementia can continue to feel connected and included.

Prevention and control of coronavirus disease 2019 (COVID-19) in public places.

Public places favor the transmission of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) due to dense population, large personal mobility, and higher contact opportunities. In order to protect the health of general public in operating public places during COVID-19 pandemic, this study proposed general precautions and control strategies from perspective of operation management, social distancing, cleaning and disinfection, and personal protection. In addition, with regard of risk level, specific precautions and control strategies were proposed for living service places, outdoor places, and confined places. The comprehensive application of above recommendations could effectively interrupt the spread of COVID-19, and protect the health of general public in public places. This study proposed general and specific precautions and control strategies in public places during COVID-19, and suggested further improvement of pandemic response.

Male and Female Conceptualizations of Sexual Harassment in Tanzania: The Role of Consent, Male Power, and Social Norms.

Sexual harassment is pervasive worldwide, yet there is a lack of clarity on its conceptualization in many settings, especially in low-income countries. Context-specific conceptualization of sexual harassment is vital to develop effective measurement tools, estimate its magnitude, and the design of interventions to address it. We explored how different population groups in Mwanza, Tanzania, understood, conceptualized, and experienced sexual harassment. This study employed a qualitative research design involving 74 in-depth interviews and 13 focus group discussions with participants from educational, workplace, and public settings in Mwanza, Tanzania. Participants were adolescent girls and boys, adult women and men. We explored individual-level perceptions and experiences of sexual harassment, and community norms and expectations around sexual harassment. We analyzed the data using a thematic approach. Participants' perceptions of sexual harassment emphasized the critical role of consent, the expression of male power, and social norms with regard to sexual harassment. Sexual harassment was understood to be a result of men being in positions of power and in charge of material resources, school grades, or employment opportunities. These in turn enabled them to take advantage of girls and women. Social norms around male and female interactions, courtship and seduction, expressions of sexual interest were crucial in delineating what was and what was not considered sexual harassment. Sexual harassment is a fluid concept, and its definition is highly dependent on contextual factors. Consent underpins the conceptualization of sexual harassment and is a fundamental feature in the definition and measurement of sexual harassment in Tanzania. Consent is largely determined by sexual norms around male and female interactions and gendered power. There is a need for consensus in schools, workplaces, and communities about what constitutes sexual harassment in order to measure and address it appropriately.

Cold traps as reliable devices for quantitative determination of SARS-CoV-2 load in aerosols.

Spread of the severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) is a demanding challenge. This is of particular importance in schools and public areas of unavoidable access. New viral mutations may increase infectivity and require even better methods to identify areas of potential hazards. High-throughput SARS-CoV-2 testing and legal restrictions are not effective in order to get the current outbreak under control. The occurrence of new SARS-CoV-2 variants with a higher transmissibility requires efficient strategies for early detection and surveillance. Until today, testing focuses on nasal or pharyngeal mucosa swabs, neglecting the origin of aerosolic transmission, thus failing to detect the spread by carriers of the virus. Therefore, in this study, SARS-CoV-2 RNA levels were determined by quantitative real time PCR in aerosols collected by non-powered cold traps. SARS-CoV-2 spreading kinetics were recorded in indoor hotspots within a high-endemic area. These hotspots included a SARS-CoV-2 isolation unit, an outpatient endoscopy facility, a concert hall, and a shopping mall. For determination of viral presence aerosols were collected by cold traps positioned at different locations in the area of interest over a period of 4-6 h. Indoor SARS-CoV-2 hotspots were found in non-ventilated areas and in zones that are predisposed to a buoyancy (chimney) effect. SARS-CoV-2 RNA in those aerosols reached concentrations of 105 copies/mL, while extensive outdoor air ventilation reliably eliminated SARS-CoV-2 aerosol contamination. The method presented herein is effective for the identification of SARS-CoV-2 indoor hotspots and may help to characterize the spreading kinetics of SARS-CoV-2. Moreover, it can be used for the surveillance of emerging SARS-CoV-2 variants. Due to low costs and easy handling, the procedure might enable efficient algorithms for COVID-19 screening and prevention.

A novel data augmentation approach for mask detection using deep transfer learning.

At the onset of 2020, the world saw the rise and spread of a global pandemic named COVID-19 which caused numerous deaths and affected millions of people around the world. Due to its highly contagious nature, this disease spread across the world within a short span of time. It forced almost all the nations to implement strict social distancing rules along with use of face masks to reduce the risk of getting infected. While the virus is still on loose, markets and business firms have reopened to keep the economy alive. This calls for modification of existing technological models to cater for the safety of individuals and stop the spread of virus in public places. One such stringent implementation to achieve this safety would be deployment of a mask detection model. The proposed mask detection models can serve as a vital utility in the coming years for ensuring proper enforcement of safety protocols. This research paper explores the use of state of the art YOLOv3 model, a deep transfer learning object detection technique, to develop a mask detection model. Along with the implementation of a standard approach of any object detection algorithm, this paper has proposed the use of a data augmentation approach for mask detection. The proposed model focuses on generating an augmented dataset from the standard dataset with the help of data augmentation done by using image filtering techniques such as grayscale and Gaussian blur. This augmented dataset is used for training the object detection model for mask detection. The mean average precision for the Data augmentation based mask detection model is observed to be 99.8% while training. Finally, a comparison on the model performance is evaluated for the standard and proposed augmented data approach. The experiment conducted showed that the average confidence level for Standard mask detection model was 0.94, 0.93, 0.91 for images of individuals (type A), images with groups of people (type B) and video with the group of people (type C) respectively. The average confidence levels for the Data augmentation based mask detection model for types A, B and C are 0.97, 0.96 0.93 respectively. This paper therefore concludes that the proposed Data augmentation based mask detection model performs better than the Standard mask detection model.

Perception and practice of breastfeeding in public in Poland.

BACKGROUND: The aim of the study was to get to know polish women's opinions and experiences regarding breastfeeding in public. MATERIAL AND METHODS: A one-time 11-question survey aimed at women during lactation or breastfeeding in the past who completed a paper questionnaire or online questionnaire on the website (www.laktacja.pl). The study was conducted electronically from 1 September 2019 to 31 March 2020 in Maternity and Neonatal Departments, primary health-care clinics in various Polish cities. Data from 700 questionnaires were statistically analysed with the use of Pearson's chi-squared test of independency or Fisher's exacts test when applicable (small cell counts). RESULTS: 90% of the surveyed women expressed the opinion that it should be possible to breastfeed in public, and 78% of women have had such an experience. Most often it was their own cars, a room for a mother and child, a hall or just a place available when there was a need to feed the child (e.g., a bench, cafe, toilet). About 10% of women faced criticism while breastfeeding in a public place, and 8.6% of women have never breastfed the child out of the house due to the lack of proper place and conditions, embarrassment and no sympathy from other people. CONCLUSION: Taking into account the benefits of long-term breastfeeding and the comfort of breastfeeding women, their children and the environment, it is necessary to create dedicated places for breastfeeding in public places.

Toxoplasma oocysts in the soil of public places worldwide: a systematic review and meta-analysis.

Toxoplasmosis is a zoonotic and cosmopolitan infection. Although a few studies have evaluated the prevalence of Toxoplasma oocysts in the soil of public places, the present study was conducted to provide insights into environmental contamination levels and its potential transmission to humans on a global scale. A systematic search was conducted using bibliographic databases through 30 August 2020. A random effects model was utilized to estimate pooled prevalence with 95% confidence intervals (CIs). Subgroup analysis and meta-regressions were also performed on the geographical and environmental parameters. Finally, 22 articles, wherein 15 420 soil samples were examined, met the systematic review and meta-analysis requirements. The mean pooled prevalence of Toxoplasma oocysts was estimated at 16% (95% CI 10 to 26) in public places. The estimated prevalences in Europe, South America, Asia and North America were 23% (95% CI 4 to 65), 22% (95% CI 18 to 26), 15% (95% CI 0.06 to 33) and 8% (95% CI 0.00 to 97), respectively. An increasing trend was observed in the prevalence of Toxoplasma oocysts with increasing latitude (41-56°), decreasing longitude (0-40°) and increasing relative humidity (≥76%). Loop-mediated isothermal amplification and polymerase chain reaction methods revealed the highest and lowest prevalence rates, respectively, in the detection of Toxoplasma oocysts. Awareness of the health authorities and people about Toxoplasma prevalence in the soil of public places and its risk factors is of great importance to developing effective strategies to prevent infection.

Comparison of the Legiolert enzyme-substrate method and the conventional cultivation for the detection of Legionella pneumophila in water samples from public places / 公共卫生与预防医学

Objective To compare the detection effects of Legionella pneumophila in water samples from public places by the Legiolert enzyme-substrate method and the conventional cultivation. Methods The Legiolert enzyme-substrate method and the conventional cultivation method were used to detect Legionella pneumophila in cooling water and shower water samples collected in public places. Isolated strains were verified and serotyped. Results A total of 68 samples were collected and tested. The positive rate of the conventional cultivation and the Legiolert enzyme-substrate method were 5.88%（4/68）and 35.29%（24/68）, respectively, with a significant difference （χ2=16.41，P2=16.41，P=0.000). A total of 25 strains of Legionella pneumophila were isolated，and the serum types were mainly LP1（14/25）. Conclusion The Legiolert enzyme-substrate method represente a higher detection rate of Legionella pneumophila in water samples from public places than the conventional cultivation.