bluuebunny/crossref_metadata_2025_split huggingface dataset:
Length of preoperative hospital stay is the dominating risk factor for surgical site infection in neurosurgery: A cohort data-driven analysis
Authors: Cediel Emilio Garzón , Boerwinkle Varina Louise , Ramon Juan Fernando , Arias Diana , De la Hoz-Valle Jose Antonio , Mercado Jose Dario , Cohen Darwin , Niño Maria Claudia 
Published: March 2022

Background:
The number of days of preoperative hospital stay (PHS) is a modifiable variable that has shown contradictory surgical site infection (SSI) risk factor results in neurosurgery. We sought to pinpoint the day of PHS length related with a marked increase of risk of SSI.

Methods:
From a tertiary teaching hospital, January 2015–December 2017, prospectively collected nonpercutaneous neurosurgery procedures with standard antibiotic prophylaxis and 1-year follow-up were evaluated. SSI risk factors were assessed through multiple logistic regression models with different thresholds of PHS.

Results:
A total of 1012 procedures were included in the study. Incidence of SSI was 4.4%. The median PHS was higher in those with SSI than in those without (1 day, interquartile range [IQR]: 7 vs. 0 days, IQR: 1, respectively, P = 0.002). By the amount of six days of PHS, this exposure risk past the threshold of significance for impact on wound infection (OR 2.8; CI 1.23–6.39, P = 0.014). Operative time past 4 h (OR 2.11; CI 1.12-3.98; P = 0.021), and in some models, previous surgery at same admission were also identified by multivariate analysis as increasing postoperative SSI risk.

Conclusion:
The gradual increase of the SSI OR associated with longer PHS days was the highest risk factor of SSI in our cohort of patients. Studies directed to reduce this complication should consider the PHS.
Cauda equina syndrome after L5-S1 posterior decompression surgery showing a “convexity sign” caused by engorgement of the ventral epidural venous plexus: A case series
Authors: Takayama Motohiro , Maki Yoshinori , Kawasaki Toshinari 
Published: March 2022

Background:
Cauda equina syndrome (CES) following posterior lumbar decompression is rare. Here, we present four postoperative cases of L5S1 surgery resulting in CES attributed to engorged ventral epidural veins that decreased spontaneously in three cases, while the fourth warranted a laminoplasty.

Case Description:
Four patients underwent posterior lumbar decompressions at the L5-S1 level, but developed postoperative symptoms/signs of CES. Interestingly, in all four cases, cauda equina compression was attributed to engorgement of the ventral epidural venous plexus documented on magnetic resonance images (MRI) by the “convexity sign.” Postoperatively, three patients’ CES compression decreased spontaneously, but one required a laminoplasty.

Conclusion:
Postoperative CES occurred in four patients undergoing L5-S1 lumbar surgery. This deficit was attributed to marked engorgement of the ventral epidural plexus (i.e., yielding the “convexity sign” on MRI) that resolved spontaneously in three patients, but warranted a laminoplasty in the fourth.
Sacral dural arteriovenous fistula of the filum terminale coexisting with partially thrombosed filum vein: A case report and literature review
Authors: Iampreechakul Prasert , Wangtanaphat Korrapakc , Angsusing Chonlada , Wattanasen Yodkhwan , Lertbutsayanukul Punjama , Thammachantha Samasuk , Siriwimonmas Somkiet 
Published: March 2022

Background:
Filum terminale arteriovenous fistulas (FTAVFs) are rare and usually classified as intradural ventral AVFs or Type IVa perimedullary fistulas, located on the pia surface along the course of filum terminale internum (FTI). We report an extremely rare case of sacral dural arteriovenous fistula of the FT. We also review the occurrence of FTAVFs in the sacral region.

Case Description:
A 64-year-old man presented with progressive weakness of the lower extremities for 3 months and bowel/bladder dysfunction following long history of back pain radiating to both legs. Magnetic resonance imaging of the lumbosacral and thoracic spine showed spinal cord congestion, extending from the conus medullaris to the level of T3, and partial thrombosis within the abnormal tortuous and dilated flow void, running from the sacral area to conus medullaris. Further findings were compression fracture of L2 vertebra, Grade I degenerative spondylolisthesis at the level of L2-3, and L3-4, and spinal stenosis at L2-3, L3-4, and L4-5. Spinal angiography, maximum intensity projection reformatted image of angiographic computerized tomography, and three-dimensional reconstructed image clearly demonstrated dural AVF of the FT at the level of S2 supplied by bilateral lateral sacral and middle sacral arteries with cranial drainage to perimedullary vein through the enlarged vein of the filum. The patient was indirectly treated by transection of the filum terminale and the draining vein at the level of L5 rostral to the fistula.

Conclusion:
Sacral DAVFs of the FT are extremely rare. In our case, the formation of fistula may cause by venous hypertension secondary to partial thrombosis within the filum vein, probably resulting from long-standing spinal canal stenosis. Sacral FTAVFs may be found on the pia surface of the terminal FTI, dural component at the area of dural sac termination, or dural extension covering the filum terminale externum.
STUDY OF THE STRUCTURAL FUNCTION OF INTERNAL ROTATIONS IN MOLECULES MONOFLUORINEALKANES AND HIS RADICALS
Authors: Котомкин Алексей Викторович , Белов Александр Николаевич , Орлов Юрий Димитриевич 
Published: March 2022

Рассчитаны и аппроксимированы рядами Фурье 28 структурных функций внутреннего вращения вокруг С-С связей в молекулах FCH(CH)CH и в их радикалах FC●H(CH)CH, где 1≤ n ≤4. Рассчитаны торсионные энергетические уровни.
28 structural functions of the internal rotations around the С-С bonds in molecules 1-mono fluorine alkanes FCH(CH)CH and his radicals FC●H(CH)CH, where 1<n <4, were obtained and approximated by Fourier series. Torsion energy levels were calculated.
ELECTRONIC CHARACTERISTICS OF PYRROLES
Authors: Русакова Наталья Петровна , Курочкин Георгий Александрович , Туровцев Владимир Владимирович , Орлов Михаил Юрьевич , Орлов Юрий Димитриевич 
Published: March 2022

С помощью функционала B3LYP получено распределение электронной плотности пиррола и четырех его соединений: тримера и трех димеров с разным положением атомов азота в кольцах. Вычислены заряды, относительная энергия и объемы групп по соотношениям «квантовой теории атомов в молекулах» (QTAIM). Рассмотрено изменение интегральных электронных характеристик углерода и метиновой группы пиррольных колец в зависимости от положения аминогруппы.
The distribution of the electron density of pyrrole and four of its compounds is obtained: three dimers with different positions of nitrogen atoms and a trimer in the DFT. The comparison of charges, relative energies and volumes of groups in the postulates of the «quantum theory of atoms in molecules» (QTAIM) is carried out. The change in the integral electronic characteristics of carbon and the methine group of pyrrole rings depending on the position of the amino group is considered.
KINETICS OF GLUCOSE HYDROGENOLYSIS IN THE PRESENCE OF A MAGNETICALLY RECOVERABLE POLYMERIC CATALYST
Authors: Манаенков Олег Викторович , Косивцов Юрий Юрьевич , Кислица Ольга Витальевна , Раткевич Екатерина Алексеевна , Матвеева Валентина Геннадьевна 
Published: March 2022

В данной работе приводятся результаты исследования кинетики реакции гидрогенолиза глюкозы до этилен- и пропиленгликоля - как части общего процесса каталитической трансформации целлюлозы в гликоли в присутствии Ru-содержащих гетерогенных катализаторов. В качестве последнего в работе был использован разработанный ранее катализатор на полимерной основе 3 % Ru-FeO/СПС, обладающий магнитными свойствами. В ходе исследования получено формальное описание кинетики гидрогенолиза глюкозы, предложена математическая модель реакции гидрогенолиза глюкозы до гликолей в присутствии синтезированного катализатора, произведена оценка параметров математической модели.
This paper presents the results of studying the kinetics of the hydrogenolysis reaction of glucose to ethylene and propylene glycol as part of the overall catalytic transformation of cellulose into glycols in the presence of Ru-containing heterogeneous catalysts. As the latter, we used a previously developed polymer-based catalyst 3% Ru-FeO/HPS, which has magnetic properties. In the course of the study, a formal description of the kinetics of glucose hydrogenolysis was obtained, a mathematical model of the reaction of glucose hydrogenolysis to glycols in the presence of a synthesized catalyst was proposed, and the parameters of the mathematical model were estimated.
TO THE QUESTION ABOUT THE IDEOLOGY OF THE RUSSIAN POLITICAL COUNCIL
Authors: Стрелков Иван Павлович 
Published: March 2022

В статье предпринята попытка анализа идейной основы деятельности Русского политического совещания (РПС) в Париже. Автор выделяет ряд базовых сюжетов, вокруг которых строились политические концепции РПС. Среди них - вопрос о путях государственного и национального строительства в России после победы белого движения, проблемы преодоления распада страны, сущности революции и большевизма, места России в послевоенной Европе. На основе материалов РПС изучено, какой смысл вкладывали его участники в понятия «Россия», «русский народ», «сепаратизм», «большевизм», «германизм». Автор приходит к выводам об эклектичности происхождения этих концептов в идеологии РПС, указывает на эволюцию некоторых из них. Автор заключает, что особое восприятие членами совещания некоторых понятий, например, большевизма, мешало взаимопониманию с Парижской мирной конференцией.
The article attempts to analyze the ideological basis of the activities of the Russian Political Council (RPC) in Paris. The author identifies a number of basic plots around which the political concepts of the RPC were built. Among them - the question of the ways of state and national building in Russia after the victory of the white movement, the problem of overcoming the disintegration of the country, the essence of the revolution and Bolshevism, the place of Russia in post-war Europe. Based on the materials of the RPC, it was studied what meaning was put by its participants in such concepts as «Russia», «Russian people», «separatism», «Bolshevism», «Germanism». The author comes to conclusions about the eclecticity of the origin of these concepts in the RPC ideology, points out the evolution of some of them. The author concludes that the special perception of certain concepts by the members of the conference, for example, Bolshevism, hindered mutual understanding with the Paris Peace Conference.
ON THE HISTORY OF THE DISCOVERY OF NOVGOROD CADASTER BOOKS FOR HISTORICAL SCIENCE
Authors: Фролов Алексей Анатольевич 
Published: March 2022

В статье исследована история пребывания в МАКИД / МГАМИД в первой половине - середине XIX в. коллекции древнейших русских писцовых книг. Сделан ряд наблюдений об истории создания и дополнения архивной Описи 1806 г., которая оставалась рабочей в ЦГАДА вплоть до 1970-х гг. Выявлена роль Н.М. Карамзина в атрибуции архивного конволюта, под обложкой которого скрывались фрагменты трех древнейших писцовых книг Деревской, Шелонской и Обонежской пятин Новгородской земли. Из «Истории государства Российского» о книгах узнал К.А. Неволин, чья монография 1853 г. послужила важным импульсом для публикации Археографической комиссией с 1858 г. источников в серии «Новгородские писцовые книги». Впервые в историографии уделено внимание факту пребывания древнейших книг Деревской и Водской пятин в период с 1841 по 1857 гг. в пользовании у В.А. Поленова, директора Департамента внутренних сношений МИД и управляющего Государственным и Санкт-Петербургским Главными архивами.
The article examines the history of staying of the oldest Russian cadaster books in the Moscow Main Archive of the Ministry of Foreign Affairs in the first half - middle of the 19 century. A number of observations were made about the history of the creation and expansion of the archival Inventory of 1806, which kept to be operating in the Central State Archive of Ancient Documents until the 1970s. The role of N. M. Karamzin was revealed that he played in the attribution of the archival convolute which included fragments of three cadaster books of the Novgorod land. A brief description of the cadaster books given in the «History of the Russian State» played an important role in attracting attention to this category of sources of the scientific community. K.A. Nevolin met this description and used cadaster books for his writing. Nevolin's monograph of 1853 served as an important impetus for the publication in the series «Novgorod Cadaster Books», started by the Archeographic Commission in 1858. For the first time in historiography attention is paid to the fact of the absence of some oldest books in the archive between 1841 and 1857. They were engaged by V.A. Polenov, director of the Department of Internal Affairs of the Ministry of Foreign Affairs and manager of the State and St. Petersburg Main Archives.
WOMEN'S STORY TODAY: SOURCE STUDIES, HISTORIOGRAPHY, NEW METHODOLOGICAL APPROACHES
Authors: Белова Анна Валерьевна 
Published: March 2022

Сообщается об основных направлениях и итогах XIV Международной научной конференции Российской ассоциации исследователей женской истории (РАИЖИ), проходившей в 2021 г. в столице Республики Молдова в гибридном формате. Показано, что в фокусе исследовательских дискуссий оказались источниковедческие, историографические и методологические аспекты женской истории, имеющие существенное значение в контексте развития современной исторической науки. Отмечено, что специальное внимание было уделено вопросам особенностей женских эгодокументов, автогинографии, опыту обобщения достижений женских и гендерных исследований как научного направления, историографии женской истории нового и новейшего времени, женщинам в СССР и соцлагере, гендерным аспектам изучения инвалидности и старости в российском гуманитарном знании.
The report deals with the main directions and results of the XIV International Scientific Conference of the Russian Association of Researchers of Women's History (RAIZHI), held in 2021 in the capital of the Republic of Moldova in a mixed format. It is shown that the focus of research discussions was on source study, historiographic and methodological aspects of women's history, which are of significant importance in the context of the development of modern historical science. It was noted that special attention was paid to the issues of peculiarities of women's ego documents, autogynography, the experience of summarizing the achievements of women's and gender studies as a scientific direction, historiography of women's history of modern and recent times, women in the USSR and the socialist camp, gender aspects of studying disability and old age in the Russian humanitarian knowledge.
Las reglas de interpretación del negocio jurídico aplicadas a la cláusula arbitral como mecanismo de distinción entre una cláusula suficiente o patológica
Authors: Villacreses Valencia Carlos 
Published: March 2022

La naturaleza convencional del arbitraje permite a las partes abstraerse de la justicia ordinaria y someter una eventual disputa a este método alternativo de resolución de controversias. El convenio arbitral ha de ser formulado de forma suficiente, de modo que las partes expresen su inequívoca voluntad de someterse al sistema arbitral. Sin embargo, es común observar la insuficiencia de dicha cláusula, ya sea por limitaciones lingüísticas o errores en la técnica de redacción empleada que vuelven necesaria la intervención del juzgador para delimitar el alcance del texto que adolece de una patología.
Para ello, el ordenamiento jurídico prevé reglas de interpretación del negocio jurídico y el contrato, contenidas a partir del artículo 1576 del Código Civil. En el presente trabajo se examinará la naturaleza negocial del arbitraje, la importancia de la voluntad dentro del convenio arbitral, la diferencia entre la cláusula suficiente y patológica junto a un análisis de las reglas de interpretación del contrato y su correcta aplicación dentro de la problemática descrita en el párrafo primero.
Breve aproximación a la ciberdelincuencia desde una perspectiva criminológica
Authors: Punín Pablo 
Published: March 2022

En el presente artículo se hace una breve aproximación a lo que son la ciberdelincuencia y el ciberdelincuente. También se muestra una clasificación de los ciberdelitos, para permitir identificar de mejor manera las características de este tipo de criminalidad. Así mismo, se analizan cuáles son las teorías criminológicas que pueden ser adoptadas para tratar de explicar la ciberdelincuencia y en qué forma se puede presentar el desplazamiento en estos delitos. Por último, se indican algunas de las formas principales de combatir este tipo de criminalidad y la situación de Ecuador en la materia, para conocer si los esfuerzos han sido suficientes para reducir el problema.
La finalidad de este artículo es brindar al lector información necesaria para comprender lo que implica la ciberdelincuencia y, a partir de ahí, que pueda profundizar en el estudio de alguno de los temas que de ella se desprenden.
MANAJEMEN TRANSPORTASI :FAKTOR-FAKTOR PEMILIHAN MODA TERHADAP KINERJA ANGKUTAN MELALUI KUALITAS PELAYANAN LRT (LIGHT RAIL TRANSIT) PADA MASYARAKAT KOTA PALEMBANG
Authors: Putra Alhadi Yan 
Published: March 2022

ABSTRAK Tujuan penelitian untuk mengetahui berpengaruh langsung dan tidak langsung faktor-faktor pemilihan jasa transfortasi terhadap kinerja pelayanan melalui kualitas pelayanan LRT (Light Rail Transit) sebagai variabel intervening pada masyarakat kota Palembang.Desain penelitian ini yaitu untuk mengantisipasi berbagai perkembangan transportasi pada masyarakat kota palembang, diperlukan pengembangan transportasi lain (transmusi) dalam kota Palembang diperlukan juga pengembangan moda transportasi LRT (Light Rail Transit) mempunyai keunggulan diantaranya daya angkut untuk menarik minat penguna jasa angkutan, hemat energi dan ramah lingkungan, dengan perbedaan pelayanan tersebut menyebabkan beberapa poin antara lain mengenai penetapan tarif, penentuan kuota jumlah transportasi serta keamanan penumpang dalam perjalanan sampai tempat tujuan. Permasalahan dalam penelitian ini tingginya mobilitas kendaraan pribadi dan umum di dalam kota menyebabkan banyak permasalahan pengguna jalan raya lalulintas pada jam-jam tertentu tingkat kepadatan penggunan moda. Transportasi umum berbasis rel menjadi salah satu pilihan untuk mengatasi permasalahan kemacetan pada masyarakat kota Palembang. Kemacetan menjadi ciri khusus daerah perkotaan sedang berkembang. Moda transportasi LRT (Light Rail Transit) dipilih sebagai moda transit dalam pengembangan transportasi berbasis rel.Tahapan metode penelitian yaitu populasi dan sampel responden yang menggunakan jasa angkut ummu LRT (Light Rail Transit) pada masyarakat kota Palembang. Metode teknik sampling menggunakan accendental, teknik analisa data pengujian instrumen penelitian yaitu uji asumsi dasar, analisa data menggunakan analisis jalur (Path Analyze) dengan program SmartPLS. Responden yang digunakan dalam penelitian ini yaitu masyarakat kota Palembang yang menggunakan angkutan LRT ((Light Rail Transit) dalam bentuk data primerTemuan penelitian bahwa faktor-faktor pemilihan moda tidak berpengaruh langsung terhadap kinerja angkutan umum sedangkan kualitas pelayanan berpengaruh langsung terhadap kualitas pelayanan LRT (Light Rail Transit) akan tetapi melalui kualitas pelayanan LRT (Light Rail Transit) mampu mediasi antara variabel faktor-faktor pemilihan moda terhadap kinerja angkutan umum LRT (Light Rail Transit) bahwa variabel kualitas pelayanan merupakan variabel intervening/mediasiKeterbatasan penelitian dalam penelitian ini masalah yang diteliti memiliki ruang lingkup hanya pengunan jasa angkut LRT (Light Rail Transit) pada masyarakat kota saja dan fokus pada variabel yang akan diteliti. Originality/value yaitu kebaruan artikel ini fokus pada bahwa kualitas pelayanan LRT (Light Rail Transit) mampu mediasi antara variabel faktor-faktor pemilihan moda terhadap kinerja angkutan umum LRT (Light Rail Transit)
Ketika cinta hadir: Pengaruh Brand Love terhadap EWOM dan Loyalitas Merek
Authors: Fitrianto Eko Mohammad , Nailis Welly , Karim Suhartini 
Published: March 2022

Tujuan penelitian – Penelitian ini bertujuan untuk menguji pengaruh brand love terhadap EWOM dan Loyalitas merek. Konteks subjek pada penelitian ini adalah para pengguna smartphone yang telah menggunakan merek yang sama selama paling tidak dua tahun.Desain/Metodologi/Pendekatan – Metode yang digunakan pada penelitian ini adalah metode survey dengan 100 orang responden yang eligible berpartisipasi melalui survey online. Temuan – Hasil menunjukan bahwa brand love berpengaruh positif pada EWOM (?=0.467, t=4.829) dan Loyalitas merek (?=0.579, t=6190) Keterbatasan penelitian – Penelitian ini baru membahas satu kategori produk yaitu smartphone dengan berbagai merek, sehingga belum dapat fokus untuk menguji pada satu buah merek. Penelitian selanjutnya disarankan menggunakan komunitas sebuah merek, dimana jumlah anggota yang terdaftar diketahui.Originality/value – Penelititian ini menguji bagaimana pengaruh dari brand love terhadap EWOM dan loyalitas merek pada konteks pengguna smartphone.Keywords: Brand love, EWOM, Loyalitas merek
Pengaruh Kepemimpinan dan Kompetensi Project Manager terhadap Kepuasan Kerja dan Efektivitas Organisasi pada Divisi Konstruksi I PT Adhi Karya (Persero)Tbk
Authors: Riskawati Riskawati 
Published: March 2022

ABSTRAK Tujuan penelitian – Penelitian ini bertujuan untuk menguji pengaruh kepemimpinan dan kompetensi project manager terhadap kepuasan kerja dan efektivitas organisasi pada Divisi Konstruksi I PT Adhi Karya (Persero) Tbk. Desain/Metodologi/Pendekatan – Populasi penelitian ini adalah 209 orang karyawan Divisi Konstruksi I PT Adhi Karya (Persero) Tbk pada tahun 2021. Sampel penelitian menggunakan rumus Slovin, adalah 138 responden dengan menggunakan teknik probability sampling. Penelitian ini menggunakan analisis jalur dengan menggunakan program SPSS 25. Temuan – Hasil penelitian secara statistik membuktikan bahwa kepemimpinan dan kompetensi project manager berpengaruh positif dan signifikan terhadap kepuasan kerja dan efektivitas organisasi. Kepemimpinan dan kompetensi project manager melalui kepuasan kerja sebagai variabel intervening berpengaruh positif dan signifikan terhadap efektivitas organisasi. Kepuasan kerja sebagai variabel intervening berpengaruh positif dan signifikan terhadap efektivitas organisasi. Keterbatasan penelitian – Penelitian ini hanya menganalisis variabel kepemimpinan dan kompetensi project manager terhadap kepuasan kerja dan efektivitas organisasi. Penelitian selanjutnya hendaknya menambah variabel-variabel lain diluar penelitian ini dalam upaya menambah khasnah ilmu pengetahuan dalam bidang Sumber Daya Manusia. Originality/value – Penelitian ini menggunakan variabel dependen berupa kompetensi project manager dan variabel independen berupa efektivitas organisasi yang berbeda dengan penelitian lainnya, yaitu fenomena kepemimpinan terhadap kinerja SDM Konstruksi. Keywords : Kepemimpinan, Kompetensi, Kepuasan Kerja, Efektifitas Organisasi