bluuebunny/crossref_metadata_2025_split huggingface dataset:
Research on automatic classification technology of kidney tumor and normal kidney tissue based on computed tomography radiomics
Authors: Li Yunfei , Gao Xinrui , Tang Xuemei , Lin Sheng , Pang Haowen 
Published: February 2023

PurposeBy using a radiomics-based approach, multiple radiomics features can be extracted from regions of interest in computed tomography (CT) images, which may be applied to automatically classify kidney tumors and normal kidney tissues. The study proposes a method based on CT radiomics and aims to use extracted radiomics features to automatically classify of kidney tumors and normal kidney tissues and to establish an automatic classification model.MethodsCT data were retrieved from the 2019 Kidney and Kidney Tumor Segmentation Challenge (KiTS19) in The Cancer Imaging Archive (TCIA) open access database. Arterial phase-enhanced CT images from 210 cases were used to establish an automatic classification model. These CT images of patients were randomly divided into training (168 cases) and test (42 cases) sets. Furthermore, the radiomics features of gross tumor volume (GTV) and normal kidney tissues in the training set were extracted and screened, and a binary logistic regression model was established. For the test set, the radiomic features and cutoff value of P were consistent with the training set.ResultsThree radiomics features were selected to establish the binary logistic regression model. The accuracy (ACC), sensitivity (SENS), specificity (SPEC), area under the curve (AUC), and Youden index of the training and test sets based on the CT radiomics classification model were all higher than 0.85.ConclusionThe automatic classification model of kidney tumors and normal kidney tissues based on CT radiomics exhibited good classification ability. Kidney tumors could be distinguished from normal kidney tissues. This study may complement automated tumor delineation techniques and warrants further research.
Experimental study of the parameter effects on the flow and noise characteristics for a contra-rotating axial fan
Authors: Zhao Yanjie , Xu Chen , Zheng Zhiwei , Hu Xiaowen , Mao Yijun 
Published: February 2023

Introduction: In the present paper, experiments for a contra-rotating axial fan have been conducted to investigate the influences of the fan parameters including axial distance, blade number, blade pattern and blade thickness on the performance and noise characteristics under variable rotational speed regulation.Methods: The characteristic curves and spectrum characteristics of the contra-rotating axial fan with different structural configurations are compared and analyzed. Moreover, the spectrum density of the velocity obtained from the experiment is compared with the classic turbulence models.Results: The results show the characteristic curves of the shaft power and the sound pressure level (SPL) are nearly identical, which indicates the axial distance and blade number are not sensible factors for the contra-rotating axial fan under variable rotational speed regulation. The blade profiles of the fan have an impact on the characteristic curves of the SPL and the shaft power curves of the fan decrease evidently with increase of the blade thickness, while the shaft power curves are very close with different blade patterns.Discussion: In general, the blade profiles are sensible factors for the contra-rotating axial fan under variable rotational speed regulation. Through the SPL spectrum analysis of the contra-rotating axial fan with different blade profile, it can be concluded that the blade profile of the rotors has an obvious impact on the broadband noise characteristics under moderate and high frequency range.
Effects of Tai Chi on insomnia in elderly people with chronic non-specific low back pain: A study protocol for a randomized controlled trial
Authors: Zhang Feng , Zhang Boran , Wang Xiaotong , Huang Chang , Hu Boyi 
Published: February 2023

IntroductionChronic non-specific low back pain (CNLBP) is a complex condition characterized by pain, dysfunction, disturbed sleep, anxiety, and depression, all of which impair the quality of life. Previous studies showed that practicing Tai Chi had effects on chronic low back pain. However, there is a lack of evidence on its impact on sleep. The trial will evaluate the use of Tai Chi as a treatment for insomnia in elderly people with CNLBP.MethodsThe study design will be a randomized, controlled, open-label trial. Participants (n = 106) will be recruited from the Hospital of Chengdu University of Traditional Chinese Medicine, Qing Yang District University for the Elderly, and Ci Tang Street Community. Participants will be randomly assigned to the Tai Chi group (n = 53) and the control group (n = 53). The Tai Chi group will undergo a Yang-style 24-form Tai Chi program for 8 weeks. The control group will have a waiting period of 8 weeks, followed by 8 weeks of Tai Chi practice. The primary outcomes of this study will be changes in sleep quality and pain intensity. Secondary outcomes of interest will include changes in the quality of pain, range of motion, physical performance, social support, and overall quality of life. Any adverse events and attendance rates will also be reported in this study.Clinical trial registrationChiCTR2200064977.
The impact of COVID-19 certification mandates on the number of cases of and hospitalizations with COVID-19 in the UK: A difference-in-differences analysis
Authors: López-Güell Kim , Prats-Uribe Albert , Català Martí , Prats Clara , Hein Jotun , Prieto-Alhambra Daniel 
Published: February 2023

BackgroundMandatory COVID-19 certification, showing proof of vaccination, negative test, or recent infection to access to public venues, was introduced at different times in the four countries of the UK. We aim to study its effects on the incidence of cases and hospital admissions.MethodsWe performed Negative binomial segmented regression and ARIMA analyses for four countries (England, Northern Ireland, Scotland and Wales), and fitted Difference-in-Differences models to compare the latter three to England, as a negative control group, since it was the last country where COVID-19 certification was introduced. The main outcome was the weekly averaged incidence of COVID-19 cases and hospital admissions.ResultsCOVID-19 certification led to a decrease in the incidence of cases and hospital admissions in Northern Ireland, as well as in Wales during the second half of November. The same was seen for hospital admissions in Wales and Scotland during October. In Wales the incidence rate of cases in October already had a decreasing tendency, as well as in England, hence a particular impact of COVID-19 certification was less obvious. Method assumptions for the Difference-in-Differences analysis did not hold for Scotland. Additional NBSR and ARIMA models suggest similar results, while also accounting for correlation in the latter. The assessment of the effect in England itself leads one to believe that this intervention might not be strong enough for the Omicron variant, which was prevalent at the time of introduction of COVID-19 certification in the country.ConclusionsMandatory COVID-19 certification reduced COVID-19 transmission and hospitalizations when Delta predominated in the UK, but lost efficacy when Omicron became the most common variant.
Pattern of contributing behaviors and their determinants among people living with HIV in Iran: A 30-year nationwide study
Authors: Gheibi Zahra , Fararouei Mohammad , Afrashteh Sima , Akbari Mojtaba , Afsar Kazerooni Parvin , Shokoohi Mostafa 
Published: February 2023

IntroductionA major shift in the routes of HIV transmission seams to be taking place in Iran. Our study aimed to investigate the 30-year trend of major HIV related behaviors in Iran.MethodsThe national HIV/AIDS registry database (from September 1986 to July 2016 with data on 32,168 people newly diagnosed with HIV) was used to study the 30 years trend and demographic determinants of major HIV related behaviors.ResultsThe highest rate of drug injection (DI) among people living with HIV (PLHIV) was reported during 1996 to 1999 (p-for trend &lt; 0.001) while the highest rate of sexual activity by minorities or hard to reach groups was during 2004 to 2011 (p-for trend &lt; 0.001). Among males, drug injection was directly associated with being single (ORsingle/married = 1.34), being unemployed (ORunemployed/employed = 1.94) and having lower level of education (OR&lt;highschool/≥highschool = 2.21). Regarding females, drug injection was associated with being housewife (ORhousewife/employed = 1.35) and lower level of education (OR&lt;highschool/≥highschool = 1.85). In females, condomless sexual contact was more common among those younger (OR20−29/&lt;20 = 6.15), and married (ORmarried/single = 7.76). However, among males those being single (ORmarried/single = 0.82), being more educated (OR≥highschool/&lt;highschool = 1.24), and being unemployed (ORunemployed/employed = 1.53) reported more sexual activity by minoritised or hard to reach groups.DiscussionThe pattern of major HIV related behaviors among Iranian males and females have been rapidly changing and people living with HIV (PLHIV) are being diagnosed at a younger age. Health education to younger individuals is an essential HIV controlling strategy among Iranian population. Implementation of surveys in hidden and hard-to-reach populations is also recommended.
Changes in the health literacy of residents aged 15–69 years in central China: A three-round cross-sectional study
Authors: Mei Xin , Chen Gong , Zuo Yuting , Wu Qian , Li Junlin , Li Yilin 
Published: February 2023

IntroductionHealth literacy is an effective strategy to promote more cost-effective use of health care services and a crucial tool for preventing the spread of infectious diseases. The main objective of this study was to analyze changes in health literacy from 2019 to 2021.MethodsData were from the latest three-round cross-sectional studies with the same study design.ResultsAlthough the prevalence of adequate health literacy rose significantly over time, increasing from 26.9% (95% CI 20.1–33.7) in 2019 to 34.1% (32.9–35.3) in 2021, it was still at a relatively low level. The most significant decrease was observed for health skills among the three aspects and health information literacy among the six dimensions. Working as medical staff was a protective factor for adequate health literacy, health skills literacy, and health information literacy. Risk factors for adequate health literacy and health information literacy were older age and lower education level. Furthermore, adequate health information literacy was positively related to annual family income.DiscussionMore practical and effective policies targeting health literacy for critical aspects and groups in Central China, are urgently needed, especially during the epidemic.
The effect of diabetes mellitus on oral health-related quality of life: A systematic review and meta-analysis study
Authors: Mohseni Homagarani Yousef , Adlparvar Kimia , Teimuri Saba , Tarrahi Mohammad Javad , Nilchian Firoozeh 
Published: February 2023

BackgroundDiabetes mellitus is related to variable dental and oral complications like xerostomia and periodontal problems. Therefore, diabetes can affect the oral status and oral health-related quality of life (OHRQoL). A systematic review of evidence can determine the association between diabetes and OHRQoL. so, this study aimed to evaluate the effects of diabetes on OHRQoL.MethodsAfter determining the PECO and eligible criteria, a comprehensive search was conducted in PubMed, Scopus, Web of Science, and Embase without any restriction. Further searches were performed in Google Scholar and reference lists of selected articles. Two independent reviewers carried out paper selection, data extraction, and quality assessment. A meta-analysis was conducted using a “random effect model” and the standardized mean difference of OHRQoL with a 95% confidence interval (CI) was reported as estimating pooled effect size.ResultsAfter screening 237 identified records, three case-control and ten cross-sectional studies met eligibility criteria. Two cross-sectional studies were excluded in the quality assessment phase and the rest of the studies have a low or moderate risk of bias. The pooled standardized mean difference between the case and the control groups was 0.148 (95% CI: −0.045 to 0.340).ConclusionDiabetes mellitus has no statistical significant association with OHRQoL. Nevertheless, based on the articles' review, it seems that diabetes can lead to functional limitations, physical pain, and psychological discomfort. Also, complications of diabetes adversely affect wellbeing. Hence dentists can play an essential role in the awareness of persons with diabetes about these problems and improve their OHRQoL.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42022303038, identifier CRD42022303038.
China trauma treatment statistics 2019: A national retrospective study based on hospitalized cases
Authors: Wang Yanhua , Wang Chu , Hu Pan , Wang Haibo , Gan Lanxia , Kong Guilan , Shi Ying , Wang Tianbing , Jiang Baoguo 
Published: February 2023

ObjectiveTrauma is China's fifth leading cause of death and ranked first among youths. Trauma databases have been well-established in many countries to announce the current state of trauma rescue, treatment and care. Nevertheless, China hasn't yet established a comparable database. This paper included two national-level databases in China to describe the current situation of trauma treatment and the epidemiological characteristics of trauma incidence, which sought to provide data support for decision-making, resource allocation, trauma prevention, trauma management, and other aspects.MethodsThis study used the diagnosis and treatment data from the Hospital Quality Monitoring System (HQMS) and the China Trauma Rescue and Treatment Association (CTRTA) in 2019. A descriptive analysis was conducted to explore the demographic characteristics, trauma causes, injury degrees of trauma patients, disease burden and mortality rates in the abstracted hospitalized cases.ResultsA total of 4,532,029 trauma patients were included, of which 4,436,653 were from HQMS and 95,376 from CTRTA respectively. The age group with the highest proportion is 50-54 years old (493,320 [11.12%] in HQMS and 12,025 [12.61%] in CTRTA). Fall was the most frequent cause of trauma hospitalization, accounting for 40.51% of all cases, followed by traffic injuries, accounting for 25.22%. However, for trauma patients aged between 20 and 24 years old, the most common cause of injury was traffic accidents (28.20%). Hospital expenses for trauma patients in 2019 exceeded 100.30 billion yuan, which increases significantly with age, and fall costs the most. The mortality rate of trauma inpatients was 0.77%, which gradually increased with age after 30-year-old, and was the highest in the age group above 85 (1.86%).ConclusionThis paper summarizes the demographic characteristics, trauma causes distribution, disease burden, mortality rate, and other relative data of inpatients in 2019, which can now be used as an up-to-date clinical evidence base for national healthcare prevention and management in China.
GPs’ and pharmacists’ views of integrating pharmacists into general practices: a qualitative study
Authors: Hasan Ibrahim Ameerah S , Barry Heather E , Hughes Carmel M 
Published: February 2023

BackgroundPractice-based pharmacists (PBPs) have been introduced into general practice across the UK to relieve some of the pressures within primary care. However, there is little existing UK literature that has explored healthcare professionals’ (HCPs’) views about PBP integration and how this role has evolved.AimTo explore the views and experiences of GPs, PBPs, and community pharmacists (CPs) about PBPs’ integration into general practice and their impact on primary healthcare delivery.Design and settingA qualitative interview study in primary care in Northern Ireland.MethodPurposive and snowball sampling were used to recruit triads (a GP, a PBP, and a CP) from across five administrative healthcare areas in Northern Ireland. Sampling of practices to recruit GPs and PBPs commenced in August 2020. These HCPs identified the CPs who had most contact with the general practices in which the recruited GPs and PBPs were working. Semi-structured interviews were recorded, transcribed verbatim, and analysed using thematic analysis.ResultsEleven triads were recruited from across the five administrative areas. Four main themes in relation to PBPs’ integration into general practices were revealed: evolution of the role; PBP attributes; collaboration and communication; and impact on care. Areas for development were identified such as patient awareness of the PBP role. Many saw PBPs as a ‘central hub–middleman’ between general practice and community pharmacies.ConclusionParticipants reported that PBPs had integrated well and perceived a positive impact on primary healthcare delivery. Further work is needed to increase patient awareness of the PBP role.
IMPLEMENTASI METODE VALUE STREAM MAPPING PADA INDUSTRI: TINJAUAN LITERATUR SISTEMATIS
Authors: Setiawan Bambang , Setiawan Indra , Kurnia Hibarkah , Wahid Muhammad , Purba Humiras H. 
Published: February 2023

Value Stream Mapping (VSM) merupakan salah satu metode dari Lean Manufacturing untuk mengidentifikasi dan mereduksi pemborosan pada keseluruhan proses industri. VSM telah diterapkan pada berbagai bidang industri manufaktur bahkan sampai ke bidang jasa. Kajian literatur VSM secara sistematis diperlukan, untuk memberikan informasi mengenai penerapan VSM yang telah dilakukan kepada penelitian selanjutnya. Penelitian ini bertujuan untuk menganalisis dan mengeksplor lebih dalam terkait aplikasi VSM di industri. Penelitian ini menggunakan metode Systematic Literature Review. Literatur yang diidentifikasi meliputi 50 artikel terpilih berdasarkan seleksi. Artikel yang terkumpul berdasarkan 45 artikel Indonesia dan 5 artikel Internasional, dengan rentang publikasi dari tahun 2010 sampai 2020. Penerapan VSM yang ditemukan, didominasi oleh industri otomotif. Manfaat penerapan VSM dari keseluruhan literatur yang ditemukan meliputi eliminsi dan reduksi pemborosan, efisiensi waktu dan biaya proses, peningkatan kualitas dan peningkatan roduktivitas industri. Namun terdapat beberapa literatur terkait VSM yang hanya berfokus pada satu tujuan, sehingga belum mendapat manfaat secara menyeluruh
The van der Waals cohesive force between two carbon nanotubes
Authors: Hamasaki Hiromu , Hirahara Kaori 
Published: February 2023

Abstract
The van der Waals cohesive forces acting at a single contact between two carbon nanotubes were experimentally investigated. An isolated nanotube was brought in contact with another one under observation by transmission electron microscopy. The cohesive forces of contacted nanotubes were obtained as the separation forces of the contact, which were estimated from the deflection and Young’s modulus of nanotubes. As a result, the cohesive forces at cross-contacts ranged from 1.7 to 8.5 nN and increased with the increase in the diameter of nanotubes. The closed cap of the nanotube indicated a nine times larger cohesive force than that of the sidewall.
أثر استخدام الحاسوب التعليمي في تدريس مادة التربية الفنية لدى تلامذة الصف الخامس
Authors: أ.د. يوسف فالح الساعدي  , مصطفى عبد اللطيف العاني  
Published: February 2023

اعتمد الباحثان تقنية Power Point التي هي أحد تقنيات الحاسوب التعليمي لتصميم مادة تعليمية في عناصر وأسس العمل الفني يتم استخدامها بطريقة العرض لغرض تنمية التعبير الفني لدى تلامذة المرحلة الابتدائية.
لتحقيق هدف البحث وضع الباحثان فرضيتين صفريتين للاختبار المعرفي والمهاري.
تكون مجتمع البحث من تلامذة المرحلة الابتدائية (الخامس الابتدائي/ بعمر 10-11 سنة) بلغ عددهم (80) تلميذاً وتلميذة تم اختيار عينة عشوائية منهم بلغت (40) تلميذاً وتلميذة تم توزيعهم إلى مجموعتين أحدهما تجريبية، والأخرى ضابطة بواقع (20) تلميذاً وتلميذة في المجموعة الواحدة.
تم تصميم برنامج حاسوب على وفق تقنية Power Point في مادة عناصر وأسس العمل الفني، فضلاً عن تصميم نوعين من الاختبارات أحدهما معرفي والآخر مهاري يقاس بواسطة استمارة تقويم الأداء المهاري، عرضت الأدوات على مجموعة من الخبراء للتحقق من معامل الصدق والثبات.
Competencia traductora: análisis polisémico del verbo (dar)
Authors: Hayder Mustaf Abdullah  , Ibtihaj Abbas Ahmad  
Published: February 2023

El presente trabajo quiere aportar su granito de arena con una propuesta metodológica estructurada que pueda ayudar a cumplir las metas y los objetivos propuestos en los planes de estudio, basándose en los problemas de formación detectados a través de la investigación en el aula.
El objeto de este trabajo es determinar, qué competencia traductora deberán alcanzar nuestros estudiantes y qué enseñar, es decir, qué es la traducción, cómo se lleva a cabo el proceso de traducción.Y un interés pedagógico, puesto que es gratificante como docente verificar de qué modo se puede ayudar al alumno a mejorar sus aptitudes. Hemos elegido como muestra unos estudiantes del Departamento de la Lengua Española-Universidad de Bagdad. Y hemos hecho un cuestionario de trece frases con el verbo ((dar)) para evaluar la traducción de los alumnos, del español al árabe durante la carrera de licenciado.
The Function of Code Mixing and Code Switching Uttered by Cinta Laura at Curhat Bang Denny Sumargo Youtube Channel
Authors: Reni Fetri 
Published: February 2023

Code-mixing and code-switching can effectively deal with the complex communicative demands that arise when participants have varied levels of linguistic ability. This paper aimed to examine the functions of code-mixing and code switching uttered by Cinta Laura Kiehl in Bang Denny Sumargo Interview Show on August 18th 2021 entitled “Terjebak Toxic Relationship'' (In A Toxic Relationship). The design of this study used a qualitative descriptive method. Data were gathered from the interview in written data. An explanatory sample was used to analyze the collected data.Cinta Laura is a bilingual person who has the ability to use two languages with the same good manner. It means that there is not more dominant between one language to another.Furthermore, the most dominant function of code-mixing was incompetence and the most dominant function of code-switching was covering the ability to speak a specific language. Study results are expected to contribute to students and lecturers of English and researchers engaging in sociolinguistic research to explore further the purpose of using code-mixing and code-switching in conversation.
Moving Target Detection via Multi-IRS-Aided OFDM Radar
Authors: Esmaeilbeig Zahra , Eamaz Arian , Mishra Kumar Vijay , Soltanalian Mojtaba 
Published: February 2023

<p>An intelligent reflecting surface (IRS) consists of passive reflective elements capable of altering impinging waveforms. The IRS-aided radar systems have recently been shown to improve detection and estimation performance by exploiting the target information collected via non-line-of-sight paths. However, the waveform design problem for an IRS-aided radar has remained relatively unexplored. In this paper, we consider a multi-IRS-aided orthogonal frequency-division multiplexing (OFDM) radar and study the theoretically achievable accuracy of target detection. In addition, we jointly design the OFDM signal and IRS phase-shifts to optimize the target detection performance via an alternating optimization approach. To this end, we formulate the IRS phase-shift design problem as a unimodular bi-quadratic program which is tackled by a computationally cost-effective approach of power-method-like iterations. Numerical experiments illustrate that our proposed joint design of IRS phase-shifts and OFDM code improves the detection performance in comparison with conventional OFDM radar. </p>