129 research outputs found

    Computational Fluid Dynamics (CFD) Simulations in Food Processing

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    A comprehensive impedance journey to continuous microbial fuel cells

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    The aim of the present work was to characterize the impedance response of an air-cathode MFC operating in a continuous mode and to determine intrinsic properties that define its performance which are crucial to be controlled for scalability purposes. The limiting step on electricity generation is the anodic electrochemically-active biofilm, independently of the external resistance, Rext, utilized. However, for Rext below 3k? the internal impedance of the bioanode remained invariable, in good correspondence to the power density profile. The hydraulic retention time (HRT) had an effect on the impedance of both the bioanode and the air-cathode and especially on the overall MFC. The lowest HRT at which the MFC was operable was 3h. Yet, the variation on the HRT did not have a significant impact on power generation. A two constant phase element-model was associated with the EIS response of both bioanode and air-cathode, respectively. Consistency was found between the CPE behaviour and the normal power-law distribution of local resistivity with a uniform dielectric constant, which represented consistent values with the electrical double layer, the Nernst diffusion layer and presumably the biofilm thickness. These results have future implications on MFC monitoring and control, as well as in providing critical parameters for scale-up.Grant 180B12A7 from the Environmental and Energy Technology Innovation Platform (MIP2), under the project �Sewage Plus: second life of sewage as a matrix for dilution of organic waste streams�. Surajbhan Sevda gratefully acknowledges a scholarship from the Flemish Government, Department of Higher Education and Scientific Research (Vlaamse Gemeenschap) under the framework of Indo-Belgium fellowship (Academic year 2011�2012)Scopu

    The effectiveness of nurses’ psychosocial interventions for sensory deprivation in intensive care patients: a systematic review and meta-analysis

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    Objective: This systematic review and meta-analysis aimed to assess the effectiveness of nurses’ psychosocial interventions for addressing sensory deprivation in intensive care units (ICUs). Materials and methods: A comprehensive search of PubMed, Web of Science, EBSCOhost, Google Scholar, CİNAHL, Embase, Cochrane Library, and YÖK Thesis Center databases was conducted from August 2023 to May 2024, without any temporal restrictions. In addition, a physical search was made in the university library for grey literature. Results: The study revealed that nurses’ psychosocial interventions significantly improved patients’ level of consciousness (SMD = 1.042, %95 CI = 0.716 to 1.369; Z = 6.25; p <.05) and sleep quality in ICUs (SMD=1.21, 95% CI= 0.232 to 1.810; Z = 2.49; p <.05). The effectiveness of psychosocial interventions varied based on the type of intervention, patient age, ICU type, patient group, and intervention duration. Notably, auditory stimuli and aromatherapy demonstrated particularly high effect sizes, significantly enhancing patients’ levels of consciousness and sleep quality. Conclusion: In conclusion, psychosocial interventions aimed at reducing sensory deprivation in intensive care units exert beneficial effects on individuals, notably enhancing their level of consciousness and improving sleep quality. © The Author(s) 2024

    Examination of the work of Mehmet Vecihi&apos;s Sevda-yı Masumane

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    Edebi yazının farklı biçimlerde meydana gelmesi söylem alanlarının genişlemesine, faklı formlarla duygu ve düşüncelerin yaratımına imkân verir. Çok çeşitlilik arz eden edebi türler sanatkârların tüm canlı ve cansız varlıkları evrende konumlandırmasında yardımcı olur. Bir araç niteliği gören mektup türü ve tekniği ifade biçimlerine başka bir boyut kazandırır. Mektup hikâyenin Türk edebiyatında modern anlamda ilk örnekleri Tanzimat devri ile birlikte görülür. Mektup hikâye nesir türündeki metinlerde hem bütünlüklü bir yapıda hem de metnin içinde müstakil bir şekilde yer alarak günümüze kadar ulaşır. Mektup hikâye formunda kaleme aldığı Sevda-yı Masumane adlı eseriyle Servet-i Fünun dönemi yazarlarından olan Mehmet Vecihi yazdığı hikâye ve romanlarla devrinin tanınmış sanatkârlarındandır. Yazarın meydana getirdiği eserlerin niceliksel fazlalığına rağmen Latin harflerine aktarılmaması nedeniyle günümüzde bilinirliği azdır. Dolayısıyla Mehmet Vecihi&apos;nin eserlerinden biri olan Sevda-yı Masumane mektup hikâyesini günümüz Türkçesine aktarmak, edebiyat dünyasındaki yerini belirlemek ve yazarın edebi yönünün izlerini sürmek önem arz etmektedir. Bu çalışma, Türk edebiyatı sahasında daha önce üzerinde hiç durulmamış olması bakımından tercih sebebi sayılan Sevda-yı Masumane adlı eserin gün yüzüne çıkarılmasını ve yapı-tema düzleminde irdelenerek bundan sonraki çalışmalara kaynak teşkil etmesini amaçlamaktadır. Anahtar Sözcükler: Mektup hikâye, Mehmet Vecihi, Sevda-yı Masumane, Yapı ve İzlekThe emergence of literary texts in different forms enables the expansion of the fields of discourse and the creation of feelings and thoughts with different forms. A wide variety of literary genres help artists to position all living and non-living beings in the universe. The letter type and technique, which is seen as a tool, adds another dimension to the forms of expression. The first modern examples of the letter-story in Turkish literature are seen in the Tanzimat period and they survive in prose type texts both in a holistic structure and independently in the text. Mehmet Vecihi, one of the writers of the Servet-i Fünun period with his work called Sevda-yı Masumane, which is written in the form of a letter-story, is one of the well-known artists of his era with his stories and novels. Despite the quantitative excess of the works produced by the author, they are not known today because not transferred to Latin letters. Therefore, it is important to transfer the story of Sevda-yı Masumane, which is one of the works of Mehmet Vecihi, into contemporary Turkish literature, to determine its place in the world of literature and to trace the literary aspect of the author. This study aims to unearth the work called Sevda-yı Masumane, which is considered as a reason for preference in the field of Turkish literature, since it has never been emphasized before, and to be a source for future studies by examining it on the basis of structure-theme. Key Word: Letter Story, Mehmet Vecihi, Sevda-yı Masumane, Structure and Them

    The effect of nonpharmacological interventions applied by nurses to intensive care patients on the duration of delirium: a meta-analysis study

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    Objective: It was aimed to determine the effect level of nonpharmacological methods applied by nurses to patients hospitalized in the intensive care unit on the duration of delirium. Materials and methods: For this study, relevant studies were accessed by searching in July–October 2022. After the necessary exclusions were made, 14 studies were included in the study. The total sample size of the studies was 1123. Results: According to the results, nonpharmacological interventions applied by nurses to intensive care patients were found to reduce the duration of delirium (SMD: − 0.625, 95% CI: − 1.1040–0.210; Z = − 2.950, p = 0.003, I 2 = 93.119%). The country of the study (SMD: − 0.047, p = 0.001) and the types of nonpharmacological interventions used (SMD: − 0.062, p = 0.000) influenced the effect size of modulators on the duration of delirium in ICU patients. Conclusion: Nonpharmacological interventions applied by nurses, who have significant responsibilities in the protection and promotion of health, were found to reduce the duration of delirium in intensive care patients. This study shows that nurses, one of the main components of the multidisciplinary team in intensive care, are successful when they apply nonpharmacological interventions well. © 2023, The Author(s), under exclusive licence to Royal Academy of Medicine in Ireland.PMID: 3762445

    Disease burden and symptom management in type 2 diabetic patients: A phenomenological study

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    Aim: This study was conducted to address the experiences of diabetic patients from a psychosocial perspective, examine the burden of disease, and determine their practices for symptom management. Materials and Methods: In this study, a phenomenological research design, a qualitative research design, was used. The study included 20 diabetic patients. Individual and face-to-face interviews were performed, and Colaizzi's phenomenological analysis method was used to analyze the data. Results: As a result of the data analysis, four categories (challenges with care and treatment, coping with the disease, effects, and healthy life behaviors) and eleven main themes (knowledge, application, symptoms, support resources, spiritual coping methods, physical coping methods, physical effects, spiritual effects, social effects, physical practices, and psychological practices) emerged. Conclusion: It was concluded that the disease burden of diabetic patients is intense and that the participants of the study were not effective in coping with the disease through symptom management and found spirituality important in coping. © 2024 The Author(s). Public Health Nursing published by Wiley Periodicals LLC

    The psychological dimension of menopause: a phenomenological study

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    This study aims to determine the perceptions of women in menopause living in Turkey regarding this period and associated problems, which has shown that some women are negatively affected by the menopause period and have difficulty coping with the effects of menopause. The study has a basic qualitative research design, and the sample was determined by using the criterion sampling method, one of the purposeful sampling methods. The effects and characteristics of menopause themes are included in the category of perception of menopause among women, and the themes of positive and negative perspectives are included in the category of perspective on menopause. It is reported that women experience feelings of fear, uncertainty, irritability, anxiety/worry, introversion, relaxation, and happiness during menopause. Our study has shown that some women are negatively affected by the menopause period and have difficulty coping with the effects of menopause. © 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature

    Studies in preparation of banana wine (fruit wine)

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    Banana is a tropical fruit, which is grown abundantly in India. It is mainly composed of soluble sugars, starch and other polysaccharides. The juice was extracted from the normal ripe fruits with the help of pectinase enzyme. Optimization of pectinase treatment was done by RSM method. Wine was prepared by using two strains of Saccharomyces cerevisiae NCIM 3283 &#x26; NCIM 3046. The size of inoculum, effective pH, temperature, level of SO2 , level of DAP for both strains was optimized. It was found that NCIM 3046 gave better results compared to the other strain. Soluble solids (SS), pH and specific gravity decreased while titratable acidity (TA) increased with increasing length of fermentation of the juice. Sensory evaluation results showed that banana wine was acceptable in terms of flavor, taste, clarity and overall characteristics. The banana wine was generally accepted &#x26; could be popularized.&#xd;&#xa

    Mathematical modelling in food science through the paradigm of eggplant drying

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    Mathematical modelling in food science is becoming a key topic in both research and industry. The high complexity of both food matrices and processes had always limited the use of models as profitable tools to increase understanding and therefore to improve production processes. In recent years, the increase in computational resources allowed applying consolidated physical theories to the complex sphere of food science. Mathematical modelling is useful for design, analysis, control and optimization of food processes. In this chapter a brief overview of mathematical modelling approaches in food science is provided. Models have been classified according to time and length scales. Short scales are suitable when some novel insights about material properties are needed. The key points of the microscopic modelling approach (in particular, the concepts of force field and periodic boundary conditions) are introduced. The theoretical basis of the macroscopic approach is then described. Differences between kinetic and theoretical models are highlighted. The caseof eggplant drying is used as a paradigm to illustrate recent developments andto underline the advantages and disadvantages of each approach. Some detailsabout solution methods are also provided

    Investigation of perceived parental attitude in children exposed to sexual abuse: A case-control study

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    Background: The enduring impact of children being subjected to sexual abuse is characterized by lasting traumatic effects. Aims: This study aims to assess the influence of perceived parental attitudes on the incidence of sexual abuse in children who have experienced such abuse, comparing them with a control group. Methods: The research took place at the Child Advocacy Center (CAC) of a hospital in northern Turkey and in the pediatric outpatient clinics of the same institution. The study evaluated 101 children who were exposed to sexual abuse and 100 children who were not. Data collection took place between November 2022 and August 2023. The study employed a ‘Descriptive Information Form’ and the ‘Parental Attitude Scale’ for both case and control groups. The t-test for independent samples, descriptive statistics, and logistic regression analysis were used for data analysis. Results: Analysis of scores from the Parental Attitude Scale revealed significantly lower mean scores in acceptance-involvement and strictness-supervision in the case group (p <.05). The mean scores for ‘acceptance-involvement’ (X¯ = 22.82 ± 6.26, X¯ = 25.71 ± 3.89) were highest in the case and control groups. Neglectful attitude (38.6%) was more prevalent in the case group, while the control group exhibited a higher frequency of democratic attitude (37%). In terms of predictors, acceptance-involvement (OR = 1.091, p =.005) and maternal employment (OR = 4.410, p <.001) were identified as the most significant predictors of exposed to sexual abuse. The study’s Cronbach’s alpha value for the scale was α =.743. Conclusion: The study’s findings on parental attitudes suggest a potential connection between children’s exposure to sexual abuse and inadequate parental acceptance, involvement, supervision, and control. © The Author(s) 2024
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