bluuebunny/crossref_metadata_2025_split huggingface dataset:
Deep sternal wound infection and pectoralis major muscle flap reconstruction: A single-center 20-year retrospective study
Authors: Chen Chen , Gao Yu , Zhao Demei , Ma Zhouji , Su Yunyan , Mo Ran 
Published: July 2022

BackgroundOne of the most drastic complications of median sternal incision is deep sternal wound infection (DSWI), as it can lead to prolonged hospitalization, increased expected costs, re-entry into the ICU and even reoperation. Since the pectoralis major muscle flap (PMMF) technique was proposed in the 1980s, it has been widely used for sternal reconstruction after debridement. Although numerous studies on DSWI have been conducted over the years, the literature on DSWI in Chinese population remains limited. The purpose of this study was to investigate the clinical characteristics of DSWI in patients and the clinical effect of the PMMF at our institution.MethodsThis study retrospectively analyzed all 14,250 consecutive patients who underwent cardiac surgery in the Department of Cardiothoracic Surgery of Drum Tower Hospital from 2001 to 2020. Ultimately, 134 patients were diagnosed with DSWI.,31 of whom had recently undergone radical debridement and transposition of the PMMF in the cardiothoracic surgery or burns and plastic surgery departments because of DSWIs, while the remaining patients had undergone conservative treatment or other methods of dressing debridement.ResultsIn total, 9,824 patients were enrolled in the study between 2001 and 2020, of whom 134 met the DSWI criteria and 9690 served as controls. Body mass index (OR = 1.08; P = 0.02; 95% CI, 1.01∼1.16) and repeat sternotomy (OR = 5.93; P &lt; 0.01; 95% CI, 2.88∼12.25) were important risk factors for DSWI. Of the 134 patients with DSWI, 31 underwent the PMMF technique, and the remaining 103 served as controls. There were significant differences in coronary artery bypass grafting (CABG) (P &lt; 0.01), valve replacement (P = 0.04) and repeat sternotomy (P &lt; 0.01) between the case group and the control group. The postoperative extubation time (P &lt; 0.001), ICU time (P &lt; 0.001), total hospitalization time (P &lt; 0.001) and postoperative hospitalization time (P &lt; 0.001) in the PMMF group were significantly lower than those in the control group. The results of multivariate regression analysis showed that PMMF surgery was an important protective factor for the postoperative survival of DSWI patients (OR = 0.12; P = 0.04; 95% CI, 0.01∼0.90).ConclusionsStaphylococcus aureus was the most common bacteria causing DSWI, which was associated with BMI and reoperation, and can be validly treated with PMMF.
Intraoperative incision irrigation with high-volume saline reduces surgical site infection for abdominal infections
Authors: Wang Jin , Lv Wen , Xu Shihai , Yang Chao , Du Bo , Zhong Yuanbo , Shi Fei , Shan Aijun 
Published: July 2022

PurposeSurgical site infection (SSI) remains one of the most common postoperative complications for patients with abdominal infections. This study aimed at investigating the effectiveness of high-volume normal saline (NS) irrigation in preventing postoperative SSI for patients with abdominal infections.MethodsIn this retrospective before-after clinical study, patients who underwent emergency laparotomy due to abdominal infections between Jan 2015 and Dec 2021 were included consecutively. A cohort of 207 patients with NS irrigation was compared to historical controls. A propensity score matching (PSM) with a 1:1 ratio was performed to reduce potential bias. The primary outcome was the 30-day SSI rate.ResultsIrrigation (n = 207) and control (n = 207) matched patients were statistically identical on baseline characteristics, perioperative, and intraoperative parameters. Irrigation patients had lower overall SSI rates (10.6% vs. 26.1%, p &lt; 0.001), mainly due to reduction in superficial (4.3% vs. 17.9%) and deep (1.4% vs. 3.9%) SSIs, rather than space/organ SSIs (4.8% vs. 4.3%). Irrigation patients also had lower rates of incision seroma (4.8% vs. 11.6%, p = 0.012), shorter duration of antibiotics use (5.2 ± 1.7 d vs. 7.2 ± 2.0 d, p &lt; 0.001), and unplanned readmission (1.0% vs. 8.7%, p &lt; 0.001). Length of hospital stay showed a declining trend with irrigation intervention, while no significant difference was observed. Moreoever, logistic regression revealed that NS irrigationwas an independent protector against SSI (OR 0.309; 95% CI, 0.207–0.462; p &lt; 0.001).ConclusionIntraoperative incision irrigation with high-volume NS is associated with a lower rate of SSI for patients with abdominal infections.
Gender discrimination in surgical oncology: An in-house appraisal
Authors: Pandrowala Saneya , Patkar Shraddha , Nair Deepa , Maheshwari Amita , Pramesh C. S. , Puri Ajay 
Published: July 2022

IntroductionGender discrimination (GD) though rarely blatant, may present indirectly within a surgical department in the form of subtle inequities, differing standards, and bias. GD encompasses a wide spectrum including academic development, surgical opportunities and sexual harassment.MethodsWe conducted an online survey to analyse the perceived incidence of GD in the surgical oncology department at a tertiary care cancer centre in India. The questionnaire consisted of 15 questions and was mailed to the entire department including trainees and faculty. Anonymity was maintained while collecting the data only of the participants' gender and whether they were faculty or trainee. Collated responses were analysed using proportions.ResultsThe questionnaire was sent out to 200 recipients of whom 56% (112/200) responded via an online survey. Respondents included 84% of faculty (42/50) and 46.6% of trainees (70/150). GD was perceived by 28% of female trainees (7/25) as compared to 6.6% of male trainees (3/45), whereas amongst faculty, GD was perceived by 26.6% of female faculty (4/15) compared to 14.8% of male faculty (3/27). Approximately 13% of our trainees and 12% of our faculty mentioned that GD affected their professional performance or mental well-being. GD was experienced in terms of work experience and opportunities by a majority of trainees (13%) and faculty (9.5%). There was a significant lack of awareness about recourse to an institutional grievance committee by trainees (47%) compared to faculty (14%). About 7% of trainees and 12% of faculty acknowledged that they may have been responsible for intentional/unintentional GD.ConclusionGender discrimination can present in subtle or overt fashion in surgical departments and requires active sustained efforts to allow both genders to feel equally empowered. Establishing a system to objectively evaluate gender equity while avoiding stereotyping for certain roles can help minimize GD.
OBTAINING BINDER COMPOSITIONS OF OPTIMAL COMPOSITIONS BASED ON PORTLAND CEMENT AND CERAMIC BRICK WASTE
Authors: Makhortov D. , Zagorodnyuk L. , Sumskoy D. , Al Mamouri Saad 
Published: July 2022

When developing composite binders of a certain functional purpose, it is necessary to rationally select raw materials, taking into account their chemical, mineral and granulometric composition. The use of mechanical activation with the choice of the most suitable grinding unit affects the creation of binder compositions, the functional additives used have a significant impact on the properties of composite binders.
The article presents the results of obtaining binder compositions of optimal composition based on Portland cement and broken ceramic bricks. Experimental studies of the granulometric composition have been carried out, the results of tests of binder compositions of the compositions: cement – broken ceramic bricks prepared in a mill are given. Compositions of binder compositions with a wide range of use of ceramic cullet waste – brick production waste have been developed and installed.
Using the method of electron microscopy, the features of the microstructure of chips of cement stones synthesized on the basis of Portland cement and various content of mineral filler – ceramic brick slaughter waste, mechanically activated in a vibration mill, were studied. It is noted that the open pores of cement stone chips, synthesized binders, are densely overgrown with various neoplasms of various sizes.
It has been established that the microstructure of hydrated binder compositions is marked by a dense structure due to the use of powdered brick cullet, which compact the structure of the composite, and it is also noted that grains of calcium hydrosilicates grow on the mineral particles of the filler, compacting the overall structure of the composite.
Facettes des SIG (Éditorial)
Authors: Cheylan Jean-Paul , Miellet Philippe , Waniez Philippe 
Published: July 2022

Pour la première fois en France les SIG «donnent à voir leur production » . Outils de représentation, de gestion, de traitement et de visualisation des données géographiques, ce ne sont que des outils. Leur production débouche aujourd''hui sur des images, et ceux qui la conduisent la soumettent donc, dans ce numéro spécial, à l’appréciation de la communauté qui porte intérêt à la représentation et à l’analyse de l’espace. Le terme lui-même, Système d’Information Géographique (SIG) connaît diverses acceptions, parfois abusives. Sans doute faut-il les voir comme des enveloppes successives, une première série de facettes… Le parti pris de ce numéro est de présenter des travaux en cours, produisant des résultats graphiques ; il laisse dans l’ombre une large part des recherches méthodologiques... qui donneront à voir dans quelques années. Il privilégie, à titre d’exemple, quelques applications de gestion dans des collectivités, mais insiste sur des travaux de recherche et développement, quelles que soient les thématiques abordées. Ainsi faisons-nous l’hypothèse que, au-delà des différences thématiques, les problèmes de traitement de l''information géographique trouvent des solutions dans des domaines voisins. Ce numéro forme, de fait, un état de l’art partiel des pratiques actuelles. Ce n’est pas un palmarès mais une tentative faite pour montrer la diversité, mais également l’unité des approches.
Jean-Paul Cheylan, Philippe Miellet et Philippe Waniez
P
MENINGKATKAN HASIL BELAJAR PESERTA DIDIK PADA MATERI KLASIFIKASI MAKHLUK HIDUP MENGGUNAKAN MODEL PEMBELAJARAN KOOPERATIF TIPE STAD
Authors: Hasan Rayko 
Published: July 2022

Penelitian ini dengan tujuan untuk memperoleh gambaran tentang penggunaan model pembelajaran kooperatif tipe STAD dalam meningkatkan hasil belajar peserta didik pada materi klasifikasi makhluk hidup. Subjek penelitian adalah kelas VII dengan jumlah peserta didik 28 orang, dilaksanakan di SMP Negeri 1 Telaga Tahun pelajaran 2017/2018 semester 2 (genap). Variabel penelitian terdiri atas variabel input yaitu guru dan peserta didik, variabel proses adalah model pembelajaran kooperatif STAD dan variabel output adalah hasil belajar peserta didik. Tahapan persiapan meliputi meminta izin Kepala Sekolah, mengadakan wawancara dengan pihak-pihak terkait, membuat perangkat pembelajaran, pelaksanaan tindakan dan evaluasi. Pengambilan data siklus I dilakukan bersama-bersama oleh peneliti dan guru pengamat. Kegiatan guru maupun kegiatan peserta didik selama proses pembelajaran berlangsung dipantau dan dinilai dengan menggunakan lembar observasi pada siklus I dan siklus II. Hasil pengamatan kegiatan guru pada siklus I yang berkategori baik adalah 46,15% dan berkategori cukup 53,84 %. Hasil pengamatan kegiatan peserta didik pada siklus I yang berkategori baik adalah 40% dan berkategori cukup 60%. Hasil belajar peserta didik pada siklus I yang dinyatakan tuntas mencapai 60,71% dan yang belum tuntas 39,28%, sedangkan daya serap peserta didik mencapai 70,10%.
Ein On-Demand- und Level 4-Kleinbus auf dem Testfeld Autonomes Fahren BW – Erkenntnisse aus der begleitenden Haushaltsbefragung zu EVA-Shuttle
Authors: Barthelmes Lukas , Wilkes Gabriel , Kagerbauer Martin , Vortisch Peter 
Published: July 2022

In Karlsruhe wurde 2021 mit dem EVA-Shuttle ein autonomer Kleinbus angeboten, welcher technologische Fortschritte im Vergleich zu vergleichbaren Projekten vorwies. Im Rahmen einer Haushaltsbefragung zeigte sich, dass EinwohnerInnen dem Angebot aufgeschlossen gegenüberstanden. Die NutzerInnen weisen ein multimodaleres Verkehrsverhalten als Nicht-NutzerInnen auf. Schwierigkeiten zeigten sich in der Reisegeschwindigkeit, Verfügbarkeit und der Komplexität der Nutzung. Personen können sich die Nutzung auch in Zukunft vorstellen.
MULTIPLE ACCESS SCHEMES FOR 5G AND NEXT GENERATIONS COMMUNICATION SYSTEMS
Authors: БАКУЛИН М.Г. , БЕН Р.Т.Б.К. , КРЕЙНДЕЛИН В.Б. , МИРОНОВ Ю.Б. , ПАНКРАТОВ Д.Ю. , СМИРНОВ А.Э. 
Published: July 2022

Сделан обзор двух основных групп технологий неортогонального множественного доступа NOMA (Non-Orthogonal Multiple Access): с разделением по структуре сигнала и с разделением по мощности PD-NOMA (Power Domain NOMA). Показано, что методы PD-NOMA позволяют организовать многостанционный доступ за счет различных уровней мощности сигналов пользователей в зависимости от условий в канале передачи. Также описаны основные виды приемников NOMA, в частности приемник с последовательным подавлением помех. Рассмотрены основные примеры систем NOMAс разделением по структуре сигнала, к которым относятся системы NOMA с кодовым разделением, а также и некоторые другие разновидности NOMA: технологии множественного доступа с разреженными кодовыми последовательностями, с разделением по шаблонам, с перемежением и др. Также обсуждаются ключевые особенности технологии NOMA для сетей связи пятого и последующих поколений.
This article provides an overview of two main technologies of NOMA (Non-Orthogonal Multiple Access): code division NOMA and Power-Division NOMA (pD-NOMA). It is shown that the PD-NOMA allow organizing multiple access due to different power levels of user signals depending on the conditions in the transmission channel. The main types of NOMA receivers are also described, in particular, a receiver with successive interference cancellation. The main examples of NOMA signal structure division systems include NOMA code division systems are given, as well as some other varieties of NOMA: SCMA (Sparse Code Multiple Access), PDMA (Pattern Division Multiple Access), IDMA (Interleave-Division Multiple-Access), etc. In addition, the article discusses the key features of NOMA for communication networks of the fifth and subsequent generations.
Produksi Asam Poliglutamat Melalui Fermentasi Menggunakan Bacillus substilis Dengan Variasi Konsentrasi Asam Sitrat
Authors: Aqsha Citra Noer , Ramdhani Deni , Nurcahya Dini , Yulistya Ningrum Ratna , Harliyansyah Riski , Keryanti  
Published: July 2022

ABSTRAK
Pada penelitian ini dilakukan produksi asam poliglutamat dari asam L-glutamat dengan fermentasi menggunakan mikroorganisme Bacillus subtilis. Tujuan dari penelitian ini yaitu untuk menentukan variasi konsentrasi asam sitrat optimum dalam media fermentasi yang dapat menghasilkan asam poliglutamat dengan jumlah paling banyak. Konsentrasi asam sitrat dalam media fermentasi divariasikan pada rentang 20–50 g/L. Analisis hasil fermentasi meliputi perhitungan berat kering sel, berat asam poliglutamat, dan nilai yield. Isolasi asam poliglutamat dilakukan melalui tahapan sentrifugasi, pengendapan dengan metanol, dialisis dan liofilisasi. Hasil penelitian menunjukkan bahwa variasi terbaik dalam memproduksi asam poliglutamat dari asam L-glutamat yaitu pada konsentrasi asam sitrat 20 g/L dengan hasil asam poliglutamat sebesar 12 mg dan yield 0,6%.
ABSTRACT
In this study, the production of polyglutamic acid from L-glutamic acid was carried out by fermentation using the microorganism Bacillus subtilis. The purpose of this study was to find variations in the concentration of citric acid in the fermentation media that can produce high amount of polyglutamic acid. The concentration of citric acid in the fermentation medium was varied in the range of 20–50 g/L. The fermentation broth was analyzed for the calculation of cell dry weight, polyglutamic acid weight, and yield. Isolation of polyglutamic acid was carried out through centrifugation, precipitation with methanol, dialysis and lyophilization. The results showed that the best variation of citric acid in producing polyglutamic acid was 20 g/L citric acid by producing polyglutamic acid from L-glutamic acid of 0.012 g and yield of 0.6%.
Pengaruh Resiko Pasar, Resiko Operasional, Resiko Likuiditas dan Kecukupan Modal terhadap Profitabilitas
Authors: Sidik Solihin , Hendriyani Rina Maria 
Published: July 2022

This study aims to determine the effect of partial and simultaneous market risk, operational risk, liquidity risk and capital adequacy on profitability. The data analysis technique used is multiple linear regression analysis. The results of the study concluded that partially Market Risk has a significant positive influence on Profitability, Operational Risk has a significant negative effect on Profitability, Liquidity Risk has a significant positive effect on Profitability and Capital Adequacy has an insignificant positive effect on Profitability while simultaneously Operational Risk, Risk Market, Liquidity Risk and Capital Adequacy have a significant positive effect on Profitability.

Keywords: Market Risk, Operations, Liquidity, Capital Adequacy and Profitability
ANALISIS TINGKAT KETANGGUHAN BENCANA KELURAHAN KASTELA KOTA TERNATE (STUDI KASUS PANDEMI COVID 19)
Authors: Marwan Marwan 
Published: July 2022

The purpose of this study is to determine the readiness of the government in Kastela Village in dealing with any potential disasters that occur. This research was conducted with a qualitative approach, namely an approach model that is carried out to answer a phenomenon that occurs in the community by constructing it and then trying to trace the root of the problem based on the facts found. The results of the study revealed that, 1) The level of disaster resilience of Kastela Village is still very low so it has not yet entered the primary category. This is because almost all the aspects measured have not been met; 2) One very important aspect is that the legislation is assessed by respondents and it is even perceived that nothing has been done on all items measured so that it is given a value of 0. Whereas in this aspect it is considered as one of the bases for carrying out other aspects; 3) Other aspects are also categorized as very low, even some aspects are also explicitly given a score of 0, meaning that the government at the Kastela Village level has not done anything yet; 4) The level of resilience of the Kastela Village which has not been good has an impact on the handling of Covid 19. problems in the field. Even now, in the second year of this pandemic, it has not been able to run well. As in the vaccination program that has not run according to the government's target.
Hubungan Kesejahteraan Psikologis dengan Kesepian pada Mahasiswa yang Merantau di Yogyakarta
Authors: Pramitha Raissa , Dwi Astuti Yulianti 
Published: July 2022

Latar belakang: Mahasiswa adalah peserta didik yang menjalani pendidikan di sebuah universitas atau perguruan tinggi.
Tujuan penelitian: Penelitian ini bertujuan untuk mengetahui hubungan antara kesejahteraan psikologis dan kesepian.
Metode penelitian: Metode analisis data yang digunakan dalam penelitian ini adalah analisis korelasi, yaitu untuk mengetahui hubungan kesejahteraan psikologis dengan kesepian pada mahasiswa yang merantau di Yogyakarta. Analisis data dilakukan menggunakan program SPSS version 22 for Windows.
Hasil penelitian: Terdapat hubungan negatif antara kesejahteraan psikologis dengan kesepian pada mahasiswa yang merantau di Yogyakarta. (r = -0.655 dan p < 0.05) sehingga hipotesis yang diajukan dalam penelitian ini diterima.
Kesimpulan: Hipotesis yang diajukan oleh peneliti tentang adanya hubungan yang negatif antara kesejahteraan psikologis dan kesepian pada mahasiswa yang merantau diterima. Hal ini menunjukkan bahwa orang-orang memiliki kesejahteraan psikologis yang baik akan terhindar dari perasaan kesepian dibandingkan dengan orang-orang yang memiliki kesejahteraan psikologis yang rendah.
Manajemen Pengawasan Terhadap Guru Pendidikan Agama Islam dalam Meningkatkan Mutu Pembelajaran Siswa
Authors: Setiawati Iis 
Published: July 2022

Latar belakang: Supervisi dalam proses pendidikan merupakan kegiatan untuk meningkatkan prestasi belajar dan mutu sekolah. Namun di lapangan, pengawas masih memiliki kelemahan pada kompetensi supervisi akademik, evaluasi pendidikan, dan bidang penelitian. Salah satu dampaknya adalah kinerja guru pada KKG PAI kurang profesional dan prestasi belajar siswa tidak maksimal. Oleh karena itu diperlukan manajemen pengawasan untuk meningkatkan kualitas pembelajaran siswa pada mata pelajaran Pendidikan Agama Islam.
Tujuan penelitian: Penelitian ini bertujuan untuk mengetahui perencanaan, pelaksanaan, evaluasi, kendala dan solusi dari pengawas terhadap guru PAI dalam meningkatkan mutu belajar siswa, untuk mengetahui bagaimana manajemen perencanaan, pelaksanaan, evaluasi dan kendala serta solusi dalam meningkatkan mutu pembelajaran PAI.
Metode penelitian: Metode penelitian yang digunakan adalah deskriptif kualitatif dengan pengumpulan data melalui observasi, wawancara dan dokumentasi.
Hasil penelitian Hasil dari penelitian ini adalah pengelolaan supervisi Pendidikan Agama Islam dilaksanakan melalui perencanaan yang terdiri dari perencanaan program supervisi, pembinaan dan pengembangan profesionalitas guru yang berjalan sesuai dengan SNP PAI. Pelaksanaan supervisi meliputi input, proses dan output. Evaluasi supervisi dilakukan dengan menilai pelaksanaan SNP PAI dan hasil pelaksanaan program supervisi, efektivitas pembelajaran dan kegiatan pelatihan penggunaan metode pembelajaran.
Kesimpulan: Penelitian ini dapat disimpulkan bahwa manajemen pengawas dalam meningkatkan mutu pembelajaran siswa di Kelompok Kerja Guru Pendidikan Agama Islam Kabupaten Bandung Barat berhasil ditandai dari perencanaan, pelaksanaan dan evaluasi yang dilakukan serta hasil yang diinginkan tercapai dengan meningkatnya prestasi peserta didik.