protective cover
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Author(s):  
Thomas E. Kozlovich ◽  
Stephen C. Jones ◽  
Nina R. Kieves

Abstract OBJECTIVE To determine whether use of a protective cover would affect temporospatial gait or ground reaction force (GRF) measurements obtained from dogs walking on a validated pressure-sensitive walkway (PSW). ANIMALS 5 healthy dogs. PROCEDURES In a crossover study design, all dogs were walked across a calibrated PSW with and without a protective cover in place in random order. Temporospatial gait data and GRFs obtained with and without the cover in place were compared. RESULTS No significant differences were identified in temporospatial gait measurements obtained with versus without the cover in place. The bias was low for all variables, and the 95% limits of agreement included 0. In contrast, significant differences were found between measurements obtained with versus without the cover in place for most GRFs, with measurements obtained with the cover in place significantly lower than those obtained without a cover. CLINICAL RELEVANCE Results suggested that for dogs walking over a PSW, GRFs, but not temporospatial gait variables, would be significantly lower if a protective cover was placed over the walkway, compared with values obtained without a cover in place.


2021 ◽  
Vol 10 (87) ◽  

The need to use “covers” has arisen in order to preserve and protect written works. The protective cover made to keep the leaves of a magazine or book together without falling apart and without breaking their order is called a binding. Books, which are at the forefront of Turkish cultural heritage, have a special place among movable cultural properties. These resources, which form a bridge between the past and the future, are preserved in various museums, libraries and collections in order to carry them to future generations. Yusuf Aga Manuscript Library is one of the places where these resources are preserved. Descriptive method was used in this study. It is aimed to introduce the seven bindings in the Yusuf Ağa Manuscript Library in detail, with the material, construction technique, decoration features, colors used, and then to determine the connections of the book cover with similar examples and to reveal its position in the bookbinding art and its development process scientifically. In addition, information on the qualitative characteristics of the manuscripts in question, such as the scope, the periods they belong to, and the names of the works, has been arranged on the basis of the data in the inventory. Keeping the art of binding alive and establishing a connection between generations is very important in terms of Turkish culture, history, art and decoration. Keywords: Library, book, cover, binding, manuscript, Yusuf Aga


2021 ◽  
Vol 42 ◽  
pp. 102516
Author(s):  
Tomasz Lipecki ◽  
Paulina Jamińska-Gadomska ◽  
Ewa Błazik-Borowa

Author(s):  
Vidyasagara M. ◽  
Chandrashekhar T. ◽  
Sunil S. Raikar

Background: Amniotic fluid acts like a protective cover around the baby. Advances in ultrasound have increased early detection of abnormal amniotic fluid volumes. Any variation in the amniotic fluid volume warrants antenatal foetal surveillance.Methods: 300 pregnant women between 37 to 40 weeks of gestation were included in the study. A detailed history, examination and ultrasound was done. Pregnant women were divided into 3 groups’ i.e. normal liquor, oligohydramios and polyhydramnios. All the women were closely monitored during labour and puerperium. Follow-up was done till 7 days post-delivery. Maternal and neonatal data were collected.Results: 300 pregnant women were included in the study, out of which 221 had normal amniotic fluid index (AFI), 64 had oligohydramnios and 15 had polyhydramnios. All baseline characteristics were comparable between the groups except body mass index (BMI). Incidence of meconium stained liquor was significantly higher in oligohydramnios compared to normal AFI and polyhydramnios groups (34.4% versus 10.5% versus 13.3%; p=0.0001). Caesarean section rates were significantly higher in polyhydramnios and oligohydramnios compared to normal AFI group (73.3% versus 70.3% versus 19.9%; p=0.0001). Higher cases of low birth weight were recorded in oligohydramnios group compared to normal AFI and polyhydramnios group group (32.8% versus 18.6% versus 13.3%; p=0.011). Neonatal intensive care unit (NICU) admissions were higher in oligohydramnios (35.9%) and polyhydramnios (33.3%) compared to normal AFI group (35.9% versus 33.3% versus 12.7%; p=0.0001).Conclusions: Abnormal liquor volumes are associated with increased caesarean section rates, NICU admissions and neonatal mortality. Careful assessment of pregnant women is imperative for proper counselling and management.


PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254979
Author(s):  
Radan Keil ◽  
Štěpán Hlava ◽  
Petr Stanovský ◽  
Vladimír Ždímal ◽  
Jan Šťovíček ◽  
...  

Background and aims SARS-CoV-2 is a worldwide serious health problem. The aim of this study was to demonstrate the number of potentially infectious particles present during endoscopic procedures and find effective tools to eliminate the risks of SARS-CoV-2 infection while performing them. Methods An experimental model which focused on aerosol problematics was made in a specialized laboratory. This model simulated conditions present during endoscopic procedures and monitored the formation of potentially infectious fluid particles from the patient’s body, which pass through the endoscope and are then released into the environment. For this reason, we designed and tested a prototype of a protective cover for the endoscope’s control body to prevent the release and spread of these fluid particles from its working channel. We performed measurements with and without the protective cover of the endoscope’s control body. Results It was found that liquid coming through the working channel of the endoscope with forceps or other instruments inside generates droplets with a diameter in the range of 0.1–1.1 mm and an initial velocity of up to 0.9 m/s. The average number of particles per measurement per whole measured area without a protective cover on the endoscope control body was 51.1; with this protective cover on, the measurement was 0.0, p<0.0001. Conclusions Our measurements proved that fluid particles are released from the working channel of an endoscope when forceps are inserted. A special protective cover for the endoscope control body, made out of breathable material (surgical cap) and designed by our team, was found to eliminate this release of potentially infectious fluid particles.


2021 ◽  
pp. 557-563
Author(s):  
A.A.D. McLaren ◽  
B.R. Patterson

Site fidelity is thought to provide increased fitness through familiarity with the distribution of forage, protective cover, breeding and offspring rearing sites, and predators. For moose (Alces alces (Linnaeus, 1758)), previous research has documented fidelity at varying spatial scales. Our objective was to build on this knowledge and assess fidelity by adult female moose in two areas of central Ontario, Canada (Algonquin Provincial Park (APP) and Wildlife Management Unit 49 (WMU49)). We used global positioning system data to generate mean weekly locations for collared moose, then measured the distance between paired weekly locations among consecutive years to evaluate site fidelity. We tested for effects of study area, biological season, moose age, and reproductive status using generalized linear mixed models. Moose demonstrated stronger site fidelity in WMU49, an area with more anthropogenic disturbance, than the protected area, APP. Fidelity was weakest in the winter, but was similar among other seasons and was independent of maternal age and the presence of a calf. Our study highlights the need to consider the scale of site fidelity relative to habitat management. Actions aimed at supporting moose populations might benefit more by protecting habitat classes selected by moose rather than specific sites used by individuals.


2021 ◽  
Vol 58 (6) ◽  
pp. 354-375
Author(s):  
R. K. Gupta ◽  
M. O. Ittoop ◽  
S. K. Rai ◽  
R. Singh ◽  
M. K. Singh ◽  
...  

Abstract In this paper, a failure analysis of a high voltage feedthrough of the Indus 2 synchrotron radiation source which brought about venting of the vacuum chamber is discussed. A detailed failure analysis demonstrated that the main cause responsible for the failure of the feedthrough was high humidity in the atmosphere surrounding the feedthrough assembly, which resulted in the corrosion of CuSil braze filler alloy at the ground terminal and also caused flashover between positive (+) and ground terminals. Thermal cycling of the insulator due to flashover resulted in spalling of glazed surface layer and assisted crack propagation from the flashover-generated surface defects. The remedial measures recommended to avoid similar failure include: thorough cleaning of feedthrough and its connectors before installation, use gasket-type sealing in the protective cover of the connector on the air side, use of metallic tubes in place of polyurethane cooling water tubes and design change of feedthrough to shift brazed joint to vacuum side.


2021 ◽  
Vol 7 (3) ◽  
pp. 52
Author(s):  
Yazan Hamzeh ◽  
Samir A. Rawashdeh

Research on the effect of adverse weather conditions on the performance of vision-based algorithms for automotive tasks has had significant interest. It is generally accepted that adverse weather conditions reduce the quality of captured images and have a detrimental effect on the performance of algorithms that rely on these images. Rain is a common and significant source of image quality degradation. Adherent rain on a vehicle’s windshield in the camera’s field of view causes distortion that affects a wide range of essential automotive perception tasks, such as object recognition, traffic sign recognition, localization, mapping, and other advanced driver assist systems (ADAS) and self-driving features. As rain is a common occurrence and as these systems are safety-critical, algorithm reliability in the presence of rain and potential countermeasures must be well understood. This survey paper describes the main techniques for detecting and removing adherent raindrops from images that accumulate on the protective cover of cameras.


2021 ◽  
Vol 8 ◽  
Author(s):  
Kirthika Senthil Kumar ◽  
Tuan Dung Nguyen ◽  
Manivannan Sivaperuman Kalairaj ◽  
Vishnu Mani Hema ◽  
Catherine Jiayi Cai ◽  
...  

Swabbing tests have proved to be an effective method of diagnosis for a wide range of diseases. Potential occupational health hazards and reliance on healthcare workers during traditional swabbing procedures can be mitigated by self-administered swabs. Hence, we report possible methods to apply closed kinematic chain theory to develop a self-administered viral swab to collect respiratory specimens. The proposed sensorized swab models utilizing hollow polypropylene tubes possess mechanical compliance, simple construction, and inexpensive components. In detail, the adaptation of the slider-crank mechanism combined with concepts of a deployable telescopic tubular mechanical system is explored through four different oral swab designs. A closed kinematic chain on suitable material to create a developable surface allows the translation of simple two-dimensional motion into more complex multi-dimensional motion. These foldable telescopic straws with multiple kirigami cuts minimize components involved in the system as the characteristics are built directly into the material. Further, it offers a possibility to include soft stretchable sensors for realtime performance monitoring. A variety of features were constructed and tested using the concepts above, including 1) tongue depressor and cough/gag reflex deflector; 2) changing the position and orientation of the oral swab when sample collection is in the process; 3) protective cover for the swabbing bud; 4) a combination of the features mentioned above.


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