bluuebunny/crossref_metadata_2025_split huggingface dataset:
Methylene Blue Adsorption onto Neem Leave/Chitosan Aggregates: Isotherm, Kinetics and Thermodynamics Studies
Authors: Asokogene Francis Oluwadayo , Zaini Muhammad Abbas Ahmad , Idris Muhammad Misau , Abdulsalam Surajudeen , Usman El-Nafaty Aliyu 
Published: October 2019

Abstract
The work was aimed at evaluating the adsorptive properties of neem leave/chitosan aggregates for methylene blue removal. The adsorbent was screened to form coarse (CCANL, 600 µm), medium (MCANL, 300 µm) and fine (FCANL, 150 µm) neem leave/chitosan particles. The samples were characterized for pH, water binding capacity (WBC), surface chemistry by Fourier transform infrared spectroscopy, surface morphology by scanning electron microscope and textural properties by Brunauer-Emmett-Teller method. CCANL, MCANL and FCANL possessed specific surface area of 255, 258 and 242 m2/g, respectively. The effects of initial concentration, adsorbent dosage, contact time, pH and temperature were studied. CCANL, MCANL and FCANL demonstrated adsorption capacity of 102, 92.5 and 105 mg/g, respectively, in which ionic interaction and mesopore filling were the possible adsorption mechanisms. The equilibrium data were well fitted by Redlich-Peterson model, suggesting a monolayer adsorption onto a heterogeneous surface of adsorbent. The kinetics data were best described by pseudo-second-order and intraparticle diffusion models, for which the film diffusion, intraparticle diffusion and surface adsorption could co-exist as the controlling steps in adsorption. Adsorption of methylene blue onto chitosan composites was spontaneous, endothermic and demonstrated increased randomness at solid-solution interface.
Perspectives on deterministic control of quantum point defects by scanned probes
Authors: Lee Donghun , Gupta Jay A. 
Published: October 2019

Abstract
Control over individual point defects in solid-state systems is becoming increasingly important, not only for current semiconductor industries but also for next generation quantum information science and technologies. To realize the potential of these defects for scalable and high-performance quantum applications, precise placement of defects and defect clusters at the nanoscale is required, along with improved control over the nanoscale local environment to minimize decoherence. These requirements are met using scanned probe microscopy in silicon and III-V semiconductors, which suggests the extension to hosts for quantum point defects such as diamond, silicon carbide, and hexagonal boron nitride is feasible. Here we provide a perspective on the principal challenges toward this end, and new opportunities afforded by the integration of scanned probes with optical and magnetic resonance techniques.
The psychology of “swiping”: A cluster analysis of the mobile dating app Tinder
Authors: Rochat Lucien , Bianchi-Demicheli Francesco , Aboujaoude Elias , Khazaal Yasser 
Published: October 2019

Background and aims
The use of the smartphone dating application Tinder is increasingly popular and has received much media attention. However, no empirical study to date has investigated the psychological characteristics driving its adaptive or problematic use. The aim of this study is to determine whether reliable subtypes of users can be identified via a cluster analysis approach.

Methods
A total of 1,159 Tinder users were recruited. Survey questions investigated user characteristics, including: motives for app use, sexual desire, attachment styles, impulsivity traits, self-esteem, problematic use, depressive mood, and patterns of use.

Results
Four reliable clusters were identified: two with low levels of problematic use (“regulated” and “regulated with low sexual desire”), one with an intermediate level of problematic use (“unregulated-avoidants”), and one with a high level of problematic use (“unregulated-highly motivated”). The clusters differed on gender, marital status, depressive mood, and use patterns.

Conclusion
The findings provide insight into the dynamic relationships among key use-related factors and shed light on the mechanisms underlying the self-regulation difficulties that appear to characterize problematic Tinder use.
“It’s Not Your Everyday Classroom”
Authors: Byrd Kymberly 
Published: October 2019

A school-based enterprise (SBE) is an entrepreneurial operation managed and operated by students in a school setting. School-based enterprises reinforce classroom instruction through practice-based learning and can enhance creativity, innovation, problem-solving, critical thinking, and other skills. In addition to creating a more engaging, enriching learning environment, SBE bridges the gap between classroom instruction and the world of work and can benefit students, schools, and communities. This paper utilized the systems view of school climate framework to assess differences in perceptions of school climate between students participating in SBE and students not participating in SBE at a high school in the Mississippi River Delta Region. The qualitative analysis of five focus groups with 36 students examined differences in relationships, values, and beliefs and findings indicated that SBE can produce more meaningful, enriching learning experiences than students not participating in SBE. This research adds to the sparse empirical analyses of SBE and suggests directions for future inquiry.
Mizzou Missteps
Authors: McGuire Lauren Elizabeth 
Published: October 2019

By denying that issues of bias and mistreatment exist and then confronting such issues with disdain, some White Americans enable injustice and abet systems of oppression. Black students at the University of Missouri in fall 2015 had seen this narrative ring true several times. The resulting events, including protests, a hunger strike, and several administrator resignations, cast light on the experience of black students at Mizzou through nationwide media coverage.
This case study examines three opportunities turned missteps of administrators that exacerbated an already charged, contentious environment: the president’s refusal to acknowledge protestors at a homecoming parade, a too-little-too-late meeting with stakeholders, and the impacts of the football team’s involvement. In a country whose everyday population growth is 90 percent non-white, a greater awareness of the racial inclusion work needed on college campuses today is necessary. I hope my narrative heightens this awareness.
Survival Analysis for Patients with ALK Rearrangement-Positive Non-Small Cell Lung Cancer and a Poor Performance Status Treated with Alectinib: Updated Results of Lung Oncology Group in Kyushu 1401
Authors: Iwama Eiji , Goto Yasushi , Murakami Haruyasu , Tsumura Shinsuke , Sakashita Hiroyuki , Mori Yoshiaki , Nakagaki Noriaki , Fujita Yuka , Seike Masahiro , Bessho Akihiro , Ono Manabu , Nishitsuji Masaru , Akamatsu Hiroaki , Morinaga Ryotaro , Akagi Takanori , Shimose Takayuki , Tokunaga Shoji , Yamamoto Nobuyuki , Nakanishi Yoichi , Sugio Kenji , Okamoto Isamu 
Published: October 2019

Abstract

Lessons Learned
Alectinib confers a pronounced survival benefit in patients with ALK rearrangement-positive non-small cell lung cancer and a poor performance status. Survival benefit of alectinib for patients with a poor performance status was consistent regardless of the presence of central nervous system metastases.

Background
We previously reported a marked objective response rate (ORR) and safety for alectinib treatment in patients with ALK rearrangement-positive non-small cell lung cancer (NSCLC) and a poor performance status (PS) in the Lung Oncology Group in Kyushu (LOGiK) 1401 study. It remained unclear, however, whether alectinib might also confer a long-term survival benefit in such patients.

Methods
Eighteen patients with ALK rearrangement-positive advanced NSCLC and a PS of 2, 3, or 4 (n = 12, 5, and 1, respectively) were enrolled in LOGiK1401 between September 2014 and December 2015 and received alectinib. We have now updated the survival data for the study.

Results
The median follow-up time for all patients was 27.3 months. The median progression-free survival (PFS) was 16.2 months (95% confidence interval [CI], 7.1–30.8 months), and the median survival time (MST) and the 3-year overall survival rate were 30.3 months (95% CI, 11.5 months to not reached) and 43.8% (95% CI, 20.8–64.7%), respectively. This survival benefit was similarly manifest in patients with a PS of 2 (MST, 20.5 months) and those with a PS of ≥3 (MST, not reached). PFS did not differ between patients with or without central nervous system (CNS) metastases at baseline (median of 17.5 and 16.2 months, respectively, p = .886).

Conclusion
Alectinib showed a pronounced survival benefit for patients with ALK rearrangement-positive NSCLC and a poor PS regardless of the presence of CNS metastases, a patient population for which chemotherapy is not indicated.
Short communication: Detection of selected agricultural pesticides in river and tap water in Letsitele, Lomati and Vals–Renoster catchments, South Africa
Authors: Machete M , Shadung JM 
Published: October 2019

This paper presents the levels of detection of selected agricultural pesticides in river and tap water in the Letsitele, Lomati and Vals–Renoster catchments, South Africa. Agriculture plays a major role in the development of communities through job creation and poverty eradication. However, exposure to agricultural pesticides can result in serious human health and environmental effects. This study, therefore, identified critical areas where specific pesticides might result in high environmental and human health risks. Three water catchment areas, namely, Letsitele, Lomati and Vals–Renoster, were identified for raw and tap water analysis. The results confirmed the presence of selected agricultural pesticides: atrazine, terbuthylazine, imidacloprid, metolachlor, simazine and alachlor. Although low concentrations of most of these pesticides were detected, pesticides such as atrazine, alachlor and simazine are known for endocrine disruption. A critical finding of this study is the detection of these pesticides in tap water (drinking water) of a primary school in the Lomati catchment. This reveals a high exposure potential for human health. It is thus recommended that further research be conducted to determine the potential health risks associated with these pesticides among vulnerable communities, through epidemiological studies.
Helvella leucomelaena (Pers.) Nannf.’ın Antimikrobiyal ve Antioksidan Etkisi
Authors: İNCİ Şule , KADIOĞLU DALKILIÇ Lütfiye , DALKILIÇ Semih , KIRBAĞ Sevda 
Published: October 2019

Mantarlar
içerdikleri aktif bileşenler sayesinde besleyici bir gıda olarak
tüketilmelerinin yanı sıra tıbbi ve tedavi edici özelliklerinden dolayı uzun
yıllardır halk tarafından kullanılmaktadırlar. Mantarların immünolojik ve
antikanser özelliklerinin yanı sıra antioksidan, antihipertensif, kolesterol
düşürücü, karaciğer koruyucu, antifibriotik, antiinflamasyon, antidiyabetik,
antiviral ve antimikrobiyal etkileri olduğu bilinmektedir. Yenilebilir olan
mantarlardan Helvella leucomelaena (Pers.) Nannf. Ascomycota’ nın
Helvellaceae’ye ait bir mantar türüdür.

Bu çalışmada H. leucomelaena’nın
metanol, etanol ve hekzan gibi çözücülerden elde edilen ekstraklarının farklı
konsantrasyonları kullanılarak antimikrobiyal ve antioksidan aktivitesinin
belirlenmesi amaçlanmıştır. Antimikrobiyal aktivitesi disk difüzyon metoduna
göre tespit edilmiştir. Çalışma için Staphylococcus aureus ATCC25923,
Klebsiella pneumoniae ATCC700603, Escherichia coli ATCC25322 ve Bacillus
megaterium DSM32 gibi bakteriler, fungus
olarak Candida albicans FMC17
mikroorganizmaları kullanılmıştır. Antioksidan aktivitesi ise 2,2-difenil-1-pikrilhidrazil
(DPPH) yöntemine göre radikal süpürücü
kapasite tespit edilmiştir. Sonuçta H. leucomelaena en yüksek inhibisyon zonunu C. albicans’a karşı (16 mm) 750 µg konsantrasyonda
etanol ekstresinde gösterdiği tespit edilmiştir. DPPH radikalini süpürücü
etkisi ise artan konsantrasyonlara bağlı olarak arttığı gözlemlenmiştir.
Teleseismic Scattered‐Wave Imaging Using a Large‐N Array in the Albuquerque Basin, New Mexico
Authors: Finlay Tori S. , Worthington Lindsay L. , Schmandt Brandon , Ranasinghe Nishath R. , Bilek Susan L. , Aster Richard C. 
Published: October 2019

AbstractThe advent of low‐cost continuously recording cable‐free autonomous seismographs, commonly referred to as nodes, enables dense spatiotemporal sampling of seismic wavefields. We create virtual source reflection profiles using P waves from five teleseismic events recorded by the Sevilleta node array experiment in the southern Albuquerque basin. The basin geology records a structurally complex history, including multiple Phanerozoic orogenies, Rio Grande rift extension, and ongoing uplift from a midcrustal magma body. The Sevilleta experiment densified the long term, regionally sparse seismograph network with 801 single channel vertical‐component 10 Hz geophone nodes deployed at ∼300  m spacing for 14 days in February 2015. Results show sediment‐basement reflections at &lt;5  km depth and numerous sub‐basin structures. Comparisons to legacy crustal‐scale reflection images from the Consortium for Continental Reflection Profiling show agreement with structural geometries in the rift basin and upper crust. Comparisons of the teleseismic virtual reflection profiles to synthetic tests using 2D finite‐difference elastic wave propagation show strong P‐to‐Rayleigh scattering from steep basin edges. These high‐amplitude conversions dominate the record sections near the western rift margin and originate at the Loma Pelada fault, which acts as the primary contact between rift‐bounding basement‐cored fault blocks and rift basin sediments. At near offsets, these signals may interfere with interpretation of upper crustal structure, but their relatively slow moveout compared to teleseismic P‐wave multiples provides clear temporal separation from sediment‐basement reflections across most of the array. The high‐signal‐to‐noise ratio of these converted Rayleigh‐wave signals suggests that they may be useful for constraining short‐period (∼1  Hz) dispersion with strong sensitivity in the uppermost ∼1  km of the rift basin sediments.
Arterial Embolization in Large Uterine Fibroids : A 4-Year Single Center Experience
Authors: Çakır Volkan , Ballı Ömür 
Published: October 2019

Purpose: Current knowledge concerning the use of uterine artery embolization (UAE) in large uterine fibroids is limited with the majority of studies being limited to case reports. The present retrospective study aimed to investigate the impact of UAE on symptoms and tumor size in symptomatic women with at least one large uterine fibroid.
Methods: 39 patients undergoing UAE for symptomatic large uterine fibroids (>5cm) were consecutively enrolled in this study. All patients underwent a detailed physical examination and contrast-enhanced pelvic MRI at 3, 6 and 12 months after the procedure.
Results: Compared to baseline values (7.8 ± 2.4 cm), the mean diameter of the fibroids significantly reduced at 3rd (5.5 ± 1.7 cm), 6th (4.2 ± 1.3 cm) and 12th (3.1 ± 0.6 cm) months follow-up (p<0.005 for each compared to baseline) implying a 60 % reduction in tumor size at 12 months compared to baseline measurements. At the end of the 12 months follow-up, complete necrosis of the fibroid was achieved in 88%, complete symptom resolution was achieved in 92%, and >50 % reduction in fibroid diameter was acquired in 87 % of the participants.
Conclusion: Uterine artery embolization provides 60 % reduction in fibroid volume and a 92 % improvement in fibroid-related symptoms in patients with large fibroids at the end of 12 months follow-up.
Влияние внутрискважинного компенсатора на падение напряжения в элементах электротехнического комплекса добывающей скважины
Authors: Копырин Владимир Анатольевич , Смирнов Олег Владимирович , Портнягин Алексей Леонидович , Хамитов Рустам Нуриманович 
Published: October 2019

Актуальность исследования обусловлена необходимостью определения требуемого напряжения на выходе питающего трансформатора с учетом компенсации реактивной мощности внутри скважины, с целью предотвращения аварийных ситуаций в процессе эксплуатации установок электроцентробежных насосов. Цель исследования: оценить изменение величины падения напряжения в токопроводящих элементах электротехнического комплекса установки электроцентробежного насоса для добычи нефти при использовании внутрискважинного компенсатора реактивной мощности. Объект исследования: электротехнический комплекс установок электроцентробежных насосов для добычи нефти. Методы. При разработке математической модели электротехнического комплекса погружной установки для добычи нефти использованы положения теоретических основ электротехники, корректные допущения при составлении математических моделей и компьютерное моделирование в программном пакете символьной математики Wolfram Mathematica. Результаты. Разработана схема замещения и математическая модель электротехнического комплекса установки электроцентробежных насосов с внутрискважинным компенсатором реактивной мощности. С помощью качественной векторной диаграммы напряжений и токов в ветвях и узлах схемы замещения показано распределение величин падений напряжений на элементах комплекса. Анализ векторной диаграммы показал, что внутрискважинный компенсатор уменьшает продольную и поперечную составляющие падения напряжения, что положительно влияет на режим работы установки для добычи нефти. Получены поверхности требуемого напряжения на выходе питающего трансформатора в зависимости от мощности погружного электродвигателя для различных длин и сечений кабельной линии. Установлено, что использование внутрискважинного компенсатора позволяет уменьшить падение напряжения в токопроводящих элементах электротехнического комплекса установки для добычи нефти до 50 В.
KLASİK TÜRK ŞİİRİNDE İZLERİ GÖRÜLEN YILAN EFSUNU (ARBAĞ)
Authors: SAMANCI Metin 
Published: October 2019

Yılan ve
sihir klasik şiir geleneğinde sıkça kullanılan kelimelerdir. Yılan, sevgilinin
saçından dünya hayatına kadar bir çok kavram için, sihir ise sevgilinin
gözleri, şiir vb. kavramlar için teşbih unsuru olarak kullanılmıştır. Yılan
sihirle beraber geçtiğinde sihirbazların göz boyama ile ipleri yılan şeklinde
gösterdikleri Hz. Musa ve sihirbazlar kıssasına telmihte bulunulur. Fakat yılan
ve efsunun bir arada geçtiği bazı beyitlerde kamların yılanları deliğinden
çıkarmak veyahut yılan ısırıklarını tedavi etmek amacıyla uyguladıkları,
Çağataycada arbağ adı verilen ve Orta Asya’dan Anadolu’ya kadar taşınan yılan
efsunundan söz edilir.

Bu yazıda yılan efsunu hakkında
bilgi verilmiş, ardından tespit edilen ilgili beyitler bu bilgiler etrafında
değerlendirilmiştir.
Aprendiendo a investigar en la Educación Superior: elaboración de preguntas científicas y su tratamiento metodológico
Authors: Viejo Almanzor Carmen , Ortega Ruiz Rosario 
Published: October 2019

Uno de los retos más importantes en el contexto de la Educación Superior actual es el fomento de competencias en el alumnado. Concretamente, en los estudios de postgrado, se hace necesario formar a los y las estudiantes para que sean capaces de enfrentar tareas de carácter científico, prestando especial atención a las competencias de alto nivel cognitivo, presentes en tareas de revisión de textos científicos y análisis crítico de argumentaciones, diseño de la investigación, análisis estadístico de datos, inferencia de conclusiones y elaboración de informes de investigación, así como el manejo informático. Este proyecto ha tenido la finalidad de implementar una metodología activa que promueva la transferencia del conocimiento adquirido por el alumnado en cada una de las materias específicas del título, a la aplicación práctica y desarrollo competencial necesario para la elaboración del Trabajo Final de Máster (TFM). Los resultados del proyecto mostraron un aumento progresivo de las competencias del alumnado egresado en el máster a medida que el curso avanzaba, si bien no todas las competencias siguieron un mismo patrón en su evolución; mientras que algunas tuvieron un rápido desarrollo durante los primeros meses de formación, sufriendo luego cierto estancamiento, otras evolucionaron de forma más lenta. Estos resultados apuntan a la importancia de la puesta en marcha de planes de trabajo centrados en el desarrollo competencial de los alumnos y alumnas.
A New Risk Model Based on the Machine Learning Approach for Prediction of Mortality in the Respiratory Intensive Care Unit
Authors: Yan Peng , Huang Siwan , Chen Tiange , Li Xiang , Mo Guoxin , Wu Huan , Xu Jianqiao , Xie Guotong , Xie Lixin 
Published: October 2019

Abstract
Background and objectives : Intensive care unit (ICU) resources are inadequate for the large population in China, so it is essential for physicians to evaluate the condition of patients at admission. In this study, our objective was to construct a machine learning risk prediction model for mortality in respiratory intensive care units (RICUs). Methods: This study involved 817 patients who made 1,063 visits and who were admitted to the RICU from January 1, 2012, to December 31, 2017. Potential predictors such as demographic information, laboratory results, vital signs and clinical characteristics were considered. Among the 1,063 visits, the RICU mortality rate was 13.5%. We constructed eXtreme Gradient Boosting (XGBoost) models and compared predictive performances with random forest models, logistic regression models and clinical scores such as Acute Physiology and Chronic Health Evaluation II (APACHE II) and the sequential organ failure assessment (SOFA) system. Results : For this dataset, XGBoost models achieved the best performance with the area under the receiver operating characteristics curve (AUROC) of 0.923 (95% CI: 0.889 – 0.957) in the test set, which was significantly greater than APACHE II (0.811, 95% CI: 0.778 – 0.844) and SOFA (0.805, 95% CI: 0.770 – 0.840). The Hosmer-Lemeshow statistic was 12.667 with a P-value of 0.124, which indicated a good calibration of our predictive model in the test set. The final model contained variables that were previously known to be associated with mortality, but it also included some features absent from the clinical scores. The mean N-terminal pro-B-type natriuretic peptide (NT-proBNP) of survivors was significantly lower than that of the non-survival group (2066.43 pg/mL vs. 8232.81 pg/mL; p<0.001). Conclusions : Our results showed that the XGBoost model could be a suitable model for predicting RICU mortality with easy-to-collect variables at admission and help intensivists improve clinical decision-making for RICU patients. We found that NT-proBNP can be a good indicator of poor prognosis.