Control Charts to Enhance Quality

Control charts are important tools of statistical quality control to enhance quality. Quality improvement methods have been applied in the last few 10 years to fulfill the needs of consumers. The product has to retain the desired properties with the least possible defects, while maximizing profit. There are natural variations in production, but there are also assignable causes which do not form part of chance. Control charts are used to monitor production; in particular, their application may serve as an “early warning” index regarding potential “out-of-control” processes. In order to keep production under control, different control charts which are prepared for dissimilar cases are established incorporating upper and lower control limits. There are a number of control charts in use and are grouped mainly as control charts for variables and control charts for attributes. Points plotted on the charts may reveal certain patterns, which in turn allows the user to obtain specific information. Patterns showing deviations from normal behavior are raw material, machine setting or measuring method, human, and environmental factors, inadvertently affecting the quality of product. The information obtained from control charts assists the user to take corrective actions, hence opting for specified nominal values enhancing as such quality

Practicing Response Surface Designs in Textile Engineering: Yarn Breaking Strength Exercise

Predicting properties of end product from known properties of raw material is an important part of quality control in manufacturing. Main concept in this research is to reach a specified property of end product from known properties of raw material by attaining response surface designs with feasible region. The Ne20–19.21 T/inch yarn breaking strength (response, desired value 450 cNs) is acquired from cotton fiber properties (variables). The relationship between response and variables are obtained in response surface drawings and contour plots. The area showing the desired value in contour plots are colored in lilac and are intersected to obtain the feasible regions. By reading backwards from the feasible region borders, the variable value ranges are reached which will give the desired value of the response is obtained. When this information to start the yarn production is ready, the cotton lots containing these fiber property value ranges will be bought or from raw material in hand we will be read which yarn breaking strength will occur at the end of production. It was concluded that response surface designs with feasible region are quick, practical, and effective tools, provide valuable results, contribute a lot to quality control, and are beneficial in textile quality control

Mount Fuji Sign: A Rare Complication of Meningitis

Acute bacterial meningitis is a critical condition also because of associated complications and sequelae besides being a life-threatening infection. The complications may develop due to disease itself, diagnostic procedures or treatment. Pneumocephaly is defined as the presence of air in the cranial cavity. Pneumocephalus of spinal origin may be associated with spinal trauma, penetrating injury, tumors, and infections resulting from iatrogenic causes such as lumbar puncture. Here, we present a case of a 22-year-old male with the diagnosis of acute bacterial meningitis in whom pneumocephalus occurred after lumbar puncture. In this study, we aimed to draw attention to a rare complication of lumbar puncture

Assessment of Interest of Healthcare Employees in Distance Training in the Coronavirus Disease-2019 Pandemic Process

Introduction:In-service healthcare personnel training is an ongoing process. However, emerging unknowns require momentary planning. The Coronavirus disease-2019 (COVID-19) pandemic has made distance training (DT) compulsory for healthcare employees (HE). Thus, it is important to learn about their interest levels. This study investigates the interest of HE in DT during the pandemic process.Methods:The research population consisted of 3,442 personnel registered to take the “HE COVID-19” training at research and training hospital in 2020. The population of the study consisted of all personnel employed at research and training hospital and registered for the training. The study was planned retrospectively for reaching all personnel whose training registrations were made between 17.03.2020 and 15.04.2020. This study was used the data of the personnel who completed the “HE COVID-19 Training” within the scope of the announcements that were made as DT as reported on the Hospital Training System.Results:The total training completion rate of the participants was found to be 90%. When the interests of the HE in the DT in the process of the COVID-19 pandemic were compared, no statistically significant difference could be observed in the participation rates of the specialist doctors, resident doctors, and nurses (p=0.094). The rate of the resident doctors to complete the training until the second announcement was significantly lower compared to the specialist doctors and nurses (specialist doctor vs. resident doctor p=0.044; nurse vs. resident doctor p<0.001). The rates of completing the training after two announcements were significantly higher among the resident doctors than the specialist doctors and nurses and among the specialist doctors than the nurses (respectively p=0.018, p<0.001, p=0.018).Conclusion:Continuous training must ensure that HE are adequately prepared to deal with public health emergencies such as the COVID-19 pandemic. DT should be prioritized in the Emergency Action Plan

The first clinical case due to AP92 like strain of Crimean-Congo Hemorrhagic Fever virus and a field survey

<p>Abstract</p> <p>Background</p> <p>Crimean-Congo Hemorrhagic Fever (CCHF) is a fatal infection, but no clinical case due to AP92 strain was reported. We described the first clinical case due to AP92 like CCHFV.</p> <p>Methods</p> <p>A case infected by a AP92 like CCHFV was detected in Balkanian part of Turkey. Diagnosis was confirmed by RT-PCR and sequencing. A human serologic and tick survey studies were performed in the region, where the case detected.</p> <p>Results</p> <p>Thirty eight individuals out of 741 were found to be anti CCHFV IgM positive. The attack rate for overall CCHFV was calculated as 5.2%. In univariate analyses, CCHFV IgM positivity was found to be associated with the age (p < 0.001), male gender (p = 0.001), agricultural activity (p = 0.036), and history of tick bite (p = 0.014). In multivariate analysis, older age (OR: 1.03, CI:1.01–1.05, p < 0.001), male gender were found to be the risk factors (OR: 2.5, CI:1.15–5.63, p = 0.020) for CCHFV infection.</p> <p>Conclusion</p> <p>This is the first human case with AP92 like CCHFV infection. Furthermore, this is the first report of AP92 like strain in Turkey. In the region, elderly males carry the highest risk for CCHFV infection.</p

Interview with Marjorie Harkins Buchanan Kiewit

In this interview with Julia Stringfellow, Marjorie Harkins Buchanan Kiewit, LU class of 1943, discusses her time as a student as well as her time on the Board of Trustees.https://lux.lawrence.edu/oralhistories/1036/thumbnail.jp

Imported Crimean-Congo hemorrhagic fever cases in Istanbul

We described a series of imported cases of Crimean-Congo Hemorrhagic Fever (CCHF) in Istanbul and investigated the genetic diversity of the virus. All the suspected cases of CCHF, who were applied to the health centers in Istanbul, were screened for CCHF virus (CCHFv) infection by using semi-nested Polymerase Chain Reaction (PCR) following RT-PCR. Simultaneous blood samples were also sent to the national reference laboratory in Ankara for serologic investigation. In 10 out of 91 patients, CCHFv was detected by PCR, and among 9 out of 10, anti-CCHFv IgM antibodies were also positive. Clinical features were characterized by fever, myalgia, and hemorrhage. The levels of liver enzymes, creatinine phosphokinase, and lactate dehydrogenase were elevated, and bleeding markers were prolonged. All the cases were treated with ribavirin. There was no fatal case. All the strains clustered within the same group as other Europe/Turkey isolates

Çalışan dokuma tezgahında atkı sıklığının sürekli ölçümü ile sıklık değişiminin bilgisayar yardımıyla matematiksel analizi üzerinde araştırmalar

Bu tezin, veri tabanı üzerinden yayınlanma izni bulunmamaktadır. Yayınlanma izni olmayan tezlerin basılı kopyalarına Üniversite kütüphaneniz aracılığıyla (TÜBESS üzerinden) erişebilirsiniz.[Abstarct Not Available

Practicing Hypothesis Tests in Textile Engineering: Spinning Mill Exercise

A novel statistical approach for multiple-stream processes is proposed in this manuscript. As important as quality control in manufacturing is, hypothesis tests are an important part of it if utilized and constructed the most logically to evaluate and decide on a special matter in a production line or a production machine. The proposed statistical approach is explained in detail in a spinning mill having 20 spinning frames. The spinning frames are adjusted according to customers’ orders and to the technology of spinning frames first. Then, the result of that adjustment is controlled statistically by means of hypothesis testing, χ2, t-test, and F statistics are used. Later, they are pooled one by one, and at the end, all 20 spinning frames are considered as one machine producing the same yarn, the same variance of yarn count, and the same yarn count. Performed literature review claims that control charts are appropriate for multiple-stream processes. But, the application of this proposed statistical approach guarantees that production starts with correct adjustments on machines, and control charts become more sensitive to the assignable causes. The application area of this proposed statistical approach is wide, leading to higher quality in products, a requirement that is in demand more every day

Human Immunodeficiency Virus/Acquired Immunodeficiency Syndrome: Epidemiological Changes in the World and Turkey

Human Immunodeficiency Virus/Acquired Immunodeficiency syndrome pandemic has spread and affected the whole world. The features of the disease and the structure of the virus make it difficult to control the disease and epidemic. This disease, classified as a chronic disease, can be treated with antiretroviral drugs developed in recent years. It is important that countries follow population characteristics for disease epidemiology in terms of disease transmission. The fact that patients cannot reach treatment due to discrimination is one of the most important factors in the spread of the disease. Means of protection should be managed separately for each group, and education and screening programs should be implemented for vulnerable groups. The target is that 90% of patients are diagnosed, 90% are treated and viral suppression is maintained in 90% of patients