bluuebunny/crossref_metadata_2025_split huggingface dataset:
“In the Dark Places, Getting Burned”: Portrayals of Street Culture in Taiwan Cinema Today
Authors: Wicks James 
Published: October 2021

Abstract
Street culture is represented in two mid-2010 Taiwan films, The Kids (Xiaohai, 2015) and Thanatos, Drunk (Zui sheng meng shi 2015), in such stunning and beautiful ways that this essay sets out to etch each of them not only into the annals of Taiwan’s most memorable urban films ever made, but also position them as essential texts within the emergent field of street culture more broadly. Both movies depict physical and ideological boundaries that separate urban spaces from Taiwanese culture at large, and reveal the extent to which their young protagonists are perceived as “abnormal” even as they use street literacy in sophisticated ways to interact with formal actors (such as school teachers and the police) and informal actors (such as hooligans and petty criminals). These two films arguably present the best vantage point to understand the peripheral status of Taiwan’s urban young people who do not conform to hegemonic norms.
All-optical modulation based on MoS2-Plasmonic nanoslit hybrid structures
Authors: Sun Feiying , Nie Changbin , Wei Xingzhan , Mao Hu , Zhang Yupeng , Wang Guo Ping 
Published: October 2021

Abstract
Two-dimensional (2D) materials with excellent optical properties and complementary metal-oxide-semiconductor (CMOS) compatibility have promising application prospects for developing highly efficient, small-scale all-optical modulators. However, due to the weak nonlinear light-material interaction, high power density and large contact area are usually required, resulting in low light modulation efficiency. In addition, the use of such large-band-gap materials limits the modulation wavelength. In this study, we propose an all-optical modulator integrated Si waveguide and single-layer MoS2 with a plasmonic nanoslit, wherein modulation and signal light beams are converted into plasmon through nanoslit confinement and together are strongly coupled to 2D MoS2. This enables MoS2 to absorb signal light with photon energies less than the bandgap, thereby achieving high-efficiency amplitude modulation at 1550 nm. As a result, the modulation efficiency of the device is up to 0.41 dB μm−1, and the effective size is only 9.7 µm. Compared with other 2D material-based all-optical modulators, this fabricated device exhibits excellent light modulation efficiency with a micron-level size, which is potential in small-scale optical modulators and chip-integration applications. Moreover, the MoS2-plasmonic nanoslit modulator also provides an opportunity for TMDs in the application of infrared optoelectronics.
Conflict and Authority: William of Saint-Thierry and Peter Abelard as Readers of Origen
Authors: Cvetković Carmen Angela 
Published: October 2021

Abstract
This study compares how two prominent twelfth-century Latin authors and theological opponents, namely the monastic author William of Saint-Thierry (c. 1080–1148) and the school master Peter Abelard (1079–1142), variously understood the authority of the controversial yet influential Greek author Origen (c. 184–253) in their works. Modern scholars who study the reception of Origen in the twelfth-century Latin West have, to this point, spoken of an Origenian revival in this period, concluding that Origen was especially popular in the cloister, among Cistercian monks, such as Bernard of Clairvaux and his followers, like William of Saint-Thierry, based on the assumption that as monks they found his writings more relevant. This study seeks to challenge this scholarly narrative by focusing on two authors who are perceived as typifying two different strands of theology, one of a contemplative character developed in the cloister (William) and one making use of dialectics and developed in the emerging schools (Abelard). By demonstrating that the schoolmaster Abelard drew on Origen to a greater degree and in a more transparent manner than his monastic opponent, this study will show that Origen’s popularity in the cloisters was not, as such, a clear point of distinction between them and schools in the way that has usually been claimed by modern scholarship.
Results of AAS-measurements of atmospheric deposition of copper and lead in the snow cover of Almaty agglomeration
Authors: Madibekov Аzamat , Ismukhanova Laura , Mussakulkyzy Ainur , Kulbekova Roza , Zhadi Askhat 
Published: October 2021

Abstract
The article presents the results of the study conducted on the territory of the Almaty agglomeration (AA) in the first half of 2019. During the expeditionary studies, sampling was carried out at 30 permanent points established taking into account the degree of anthropogenic load and sources of technogenic pollution. The content of trace elements (TE) in the snow was determined by a flame atomic absorption spectrometric method using an AA-7000 spectrophotometer with a hollow cathode lamp and with a nozzle burner operating on an acetylene-air mixture. The paper considers the amount of content of copper and lead in the snow, as well as the nature of their distribution over the study area. Calculations were carried out on the number of depositions of the TE in question per unit area over the territory of the agglomeration, with the allocation of zones experiencing the highest technogenic load.
Development in nanomembrane-based filtration of emerging contaminants
Authors: Tiruneh Adugna Amare 
Published: October 2021

Abstract
Recently, the concentration of emerging contaminants is increasing in drinking water sources, industrial wastewater, and reclaimed water. It is not possible to remove the emerging contaminants using conventional methods, and the interest to use nanomembrane-based filtration is getting attention. A nanomembrane-based filtration can be manipulated without the use of any special equipment. Different research findings reported better removal of emerging contaminants has been achieved using nanomembrane-based filtration. Moreover, new developments have been examined and implemented at different levels and are expected to continue. Therefore, this chapter provides a brief overview of recent developments on nanomembrane-based filtration processes in the removal of emerging contaminants from drinking water sources, industrial wastewater, and reclaimed water.
Obstructive sleep apnea is common in patients with high-impact chronic pain – an exploratory study from an interdisciplinary pain center
Authors: Larsen Dennis Boye , Bendix Laila , Abeler Karin , Petersen Kristian Kjær , Sprehn Michael , Bruun Karin Due , Blichfeldt-Eckhardt Morten Rune , Vaegter Henrik Bjarke 
Published: October 2021

Abstract

Objectives
Sleep disturbances are increasingly recognized as a major part of chronic pain pathology. Obstructive sleep apnea (OSA) is a common occurrence in patients with chronic pain attending specialized pain clinics, yet its prevalence remains unclear. Using screening tools such as the Berlin and STOP-BANG questionnaires may aid in early identification of OSA and improve clinical care. This study i) examined the frequency of OSA based on objective sleep monitoring in patients with high-impact chronic pain, ii) explored potential differences in self-reported pain and sleep characteristics between patients with and without OSA, and iii) tested the agreement between OSA classification based on objective assessment and two OSA screening questionnaires.

Methods
A consecutive cohort of 90 patients (71 women and 19 men; mean age: 47.1 ± 11.0 years) referred for interdisciplinary pain treatment, underwent one night of sleep monitoring using portable respiratory polygraphy (RP), and suspected OSA was confirmed with polysomnography (PSG). Self-reported data on clinical pain (severity, pain drawings and health-related quality of life), sleep characteristics (sleep quality insomnia, sleepiness), and risk of OSA (Berlin and STOP-BANG questionnaires) were collected the day before RP assessment.

Results
Forty-six (51.1%) patients were classified with OSA according to RP and verified with PSG. Twenty-eight patients (31.1%) had moderate or severe OSA (apnea-hypopnea index [AHI] >15). Patients with OSA reported lower sleep quality compared with patients without OSA. Scores on pain severity, disability, quality of life, insomnia and sleepiness were comparable between patients with and without OSA. Sensitivity and specificity were 78.6 and 45.2% respectively for the Berlin questionnaire, and 71.4 and 58.1% respectively for the STOP-BANG questionnaire. The agreement for both questionnaires with objective assessment was poor-to-fair. Both questionnaires had acceptable negative predictive values but low positive predictive values reducing the clinical utility to identify patients with low OSA-risk in this sample.

Conclusions
The current study demonstrates a high prevalence of OSA in patients with high-impact chronic pain referred to specialized pain treatment, however the clinical pain profiles were similar in patients with and without OSA. The Berlin and STOP-BANG questionnaires have poor specificity and low-to-fair agreement with RP/PSG questioning their clinical utility in identifying OSA in this sample.
Mixed initial-boundary value problems describing motions of Maxwell fluids with linear dependence of viscosity on the pressure
Authors: Fetecau Constantin , Vieru Dumitru , Rauf Abdul , Qureshi Tahir Mushtaq 
Published: October 2021

Abstract
Some mixed initial-boundary value problems are analytically studied. They correspond to unsteady motions of the incompressible upper-convected Maxwell (IUCM) fluids with linear dependence of viscosity on the pressure between infinite horizontal parallel plates. The fluid motion is generated by the upper plate that applies time-dependent shear stresses to the fluid. Exact solutions are established for the dimensionless velocity and nontrivial shear stress fields using a suitable change of the spatial variable and the Laplace transform technique. They are presented as sum of the steady-state and transient components and are used to determine the required time to reach the permanent state. Comparisons between exact and numerical solutions indicate an excellent agreement. Analytical solutions for the unsteady motion of the same fluids induced by an exponential shear stress on the boundary are obtained as limiting cases of the general solutions. Moreover, the steady-state solutions corresponding to the ordinary IUCM fluids performing the initial motions are provided by means of asymptotic approximations of standard Bessel functions. Finally, spatial variation of starting solutions and the influence of physical parameters on the fluid motion are graphically underlined and discussed.
Effect of Ultrasonic Assisted on The Degree of Deacetylation of Chitosan Extracted from Portunus Pelagicus
Authors: Buanasari Buanasari , Sugiyo Warlan , Rustaman Heri 
Published: October 2021

The technology for extracting chitin from shell and other materials needs to be continuously improved, including its conversion to chitosan. Chitosan is a biocompatible polymer, biodegradable, non-toxic, water-soluble at pH below 6.5, and it has protonated amino groups. The benefits of chitosan in industry, food and medicine make it necessary to fully study an efficient chitosan synthesis method and the results can be applied on an industrial scale. This study examined the effect of ultrasonic-assisted in increasing the degree of deacetylation of chitosan produced from Portunus pelagicus shell waste. The production process of chitosan goes through the stages of deproteination, demineralization and deacetylation. All these steps are ultrasound assisted processes with a frequency of 40 kHz through a digital ultrasonic cleaner. Ultrasonic-assisted chitin and chitosan were examined using FTIR spectrometry. The results showed that the ultrasonic method was able to increase the deacetylation degree of chitin with a value of 68.45±0.11% compared to 62.52±0.08% without ultrasonic. Application of ultrasonic assisted deacetylation gave a deacetylation degree of 85.35 ± 0.20%, higher than without ultrasonic 80.24 ± 0.19%. Physically, ultrasonic-assisted chitosan is smoother and brighter in color. The ultrasonic-assisted chitosan manufacturing method could increase the deacetylation degree and produce high grade chitosan.
Extreme hyponatraemia due to primary polydipsia and quetiapine-induced SIAD
Authors: Mc Donald Darran , Mc Donnell Tara , Crowley Rachel Katherine , Brosnan Elizabeth 
Published: October 2021

Summary
Hyponatraemia is the most common electrolyte disturbance in hospitalised patients and is associated with numerous adverse outcomes. Patients with schizophrenia are particularly susceptible to hyponatraemia, in part due to the close association between this condition and primary polydipsia. We report the case of a 57-year-old woman with schizophrenia and primary polydipsia who was receiving inpatient psychiatric care. She became increasingly confused, had multiple episodes of vomiting, and collapsed 1 week after being commenced on quetiapine 300 mg. On examination, she was hypertensive and her Glasgow coma scale was nine. She had a fixed gaze palsy and a rigid, flexed posture. Investigations revealed extreme hyponatraemia with a serum sodium of 97 mmol/L. A CT brain demonstrated diffused cerebral oedema with sulcal and ventricular effacement. A urine sodium and serum osmolality were consistent with SIAD, which was stimulated by the introduction of quetiapine. The antidiuretic effect of vasopressin limited the kidney’s ability to excrete free water in response to the patients' excessive water intake, resulting in extreme, dilutional hyponatraemia. The patient was treated with two 100 mL boluses of hypertonic 3% saline but deteriorated further and required intubation. She had a complicated ICU course but went on to make a full neurological recovery. This is one of the lowest sodium levels attributed to primary polydipsia or second-generation antipsychotics reported in the literature.

Learning points

The combination of primary polydipsia and SIAD can lead to a life-threatening, extreme hyponatraemia.

SIAD is an uncommon side effect of second-generation anti-psychotics.

Serum sodium should be monitored in patients with primary polydipsia when commencing or adjusting psychotropic medications.

Symptomatic hyponatraemia is a medical emergency that requires treatment with boluses of hypertonic 3% saline.

A serum sodium of less than 105 mmol/L is associated with an increased risk of osmotic demyelination syndrome, therefore the correction should not exceed 8 mmol/L over 24 h.
Development of active packaging films based on quaternary ammonium chitosan, polyvinyl alcohol and litchi (Litchi chinensis Sonn.) pericarp extract
Authors: Liu Juge , Yao Xiyu , Yun Dawei , Zhang Man , Qian Chunlu , Liu Jun 
Published: October 2021

Litchi (Litchi chinensis Sonn.) pericarp contains abundant polyphenols that are suitable materials for developing active packaging films. In this study, 1 wt%, 3 wt% and 5 wt% of litchi pericarp extract (LPE) was added into quaternary ammonium chitosan (QAC) and polyvinyl alcohol (PVA) matrix to develop active packaging films. The structural, physical and functional properties of QAC-PVA (QP) films were compared with LPE (QP-LPE films) and without LPE (QP films). Results showed QP film had a heterogenous cross-section whereas QP-LPE films displayed rough and uneven cross-sections. After adding LPE, the N–H, O–H, C – H and C=O stretching bands of QP films shifted due to the formation of intermolecular interactions between LPE and film matrix. LPE made the colorless QP film turned brown. QP-LPE films presented lower ultraviolet–visible light transmittance than QP film. After adding LPE, film thickness increased from 0.091 to 0.103 mm, film water vapor permeability increased from 14.98 × 10−11 to 17.21 × 10−11 g m−1 s−1 Pa−1, film oxygen permeability increased from 0.16 to 0.22 cm3 mm m−2 day−1 atm−1, film tensile strength increased from 14.10 to 17.41 MPa, and film elongation at break decreased from 36.94% to 25.13%. QP-LPE films quickly released polyphenols in distilled water within 4 h and displayed potent antioxidant activity. The antimicrobial ratio of the film against Escherichia coli, Salmonella typhimurium, Staphylococcus aureus and Listeria monocytogenes was elevated from 50.40−68.04% to 58.93−91.38% after adding LPE. Results suggested QP-LPE films could be utilized as antioxidant and antimicrobial packaging materials in food industry.
Word-embedding Based Text Vectorization Using Clustering
Authors: Yuferev Vitaly I. , Razin Nikolai A. 
Published: October 2021

It is known that in the tasks of natural language processing, the representation of texts by vectors of fixed length using word-embedding models makes sense in cases where the vectorized texts are short.The longer the texts being compared, the worse the approach works. This situation is due to the fact that when using word-embedding models, information is lost when converting the vector representations of the words that make up the text into a vector representation of the entire text, which usually has the same dimension as the vector of a single word.This paper proposes an alternative way for using pre-trained word-embedding models for text vectorization. The essence of the proposed method consists in combining semantically similar elements of the dictionary of the existing text corpus by clustering their (dictionary elements) embeddings, as a result of which a new dictionary is formed with a size smaller than the original one, each element of which corresponds to one cluster. The original corpus of texts is reformulated in terms of this new dictionary, after which vectorization is performed on the reformulated texts using one of the dictionary approaches (TF-IDF was used in the work). The resulting vector representation of the text can be additionally enriched using the vectors of words of the original dictionary obtained by decreasing the dimension of their embeddings for each cluster.A series of experiments to determine the optimal parameters of the method is described in the paper, the proposed approach is compared with other methods of text vectorization for the text ranking problem – averaging word embeddings with TF-IDF weighting and without weighting, as well as vectorization based on TF-IDF coefficients.
Interrelation of venous and osteoarticular pathology in patients with Giacomini's vein
Authors: Yarovenko G. V. , Zhdanova A. I. 
Published: October 2021

Objective: To establish a possible relationship between the Giacomini vein and osteoarticular pathology of the lower extremities in chronic venous diseases (CVD).Materials and methods. In 115 examined patients (out of 321), we identified the Giacomini vein (92 women, 23 men). The average age of men was 44.82 ± 1.62 years; women – 45.36 ± 3.31 years. All patients were divided into 3 groups by anatomical randomization. The first group was without pathology, the second group of patients had only CVD, and the third group included patients with CVD and osteoarticular pathology. The criteria for inclusion in the groups were: the presence of Giacomini vein in patients, chronic venous disease and osteoarticular pathology on one or both lower extremities. Exclusion criteria: age of patients less than 18 years, the presence of CVD C5-C6 according to the CEAP classification, post-traumatic changes in the osteoarticular system, post-thrombotic transformation of the veins of the lower extremities. Using triplex angioscanning, the anatomical features of the structure of the venous system of the lower extremities were assessed. The study of the condition of the foot was carried out using the Friedland method.Results. Group I with an absolute norm of the venous and osteoarticular systems included 30 people (26 %). The second group consisted of 45 patients (39.22 %) with CVD C0-C4 according to CEAP, and the third group consisted of 40 patients (34.78 %) who, in addition to venous, osteoarticular pathology. Chronic venous diseases in patients of groups II and III were distributed as follows: C0 – 25.6 %; C1 – 16.4 %; C2 – 49.4 %; C3 – 4.3 %; C4 – 4.3 % on the CEAP scale. Among the osteoarticular pathology, the most numerous group consisted of changes in the configuration of the foot, non-traumatic deformities – 32 (27.81 %) cases. To confirm the relationship between venous and osteoarticular pathology, we used the Pearson criterion. We found a significant correlation in the presence of nontraumatic deformities of the foot in the group of patients with CVD (Pearson's criterion 0.749642; p < 0.22). A strong correlation was established between the age of patients and changes in the venous and osteoarticular systems of the lower extremities (Pearson's criterion 0.7677696; p < 0.22), which confirms the relationship between the development of nontraumatic changes in the foot and CVD in patients with Giacomini vein with age.Conclusion. It was found that the presence of an altered Giacomini vein leads to an aggravation of venous stasis in the lower extremities, which in turn increases the likelihood of developing venous pathology. Chronic diseases of the veins of the lower extremities contribute to dystrophic changes in soft tissues, most pronounced in the distal part of the extremity and, as a consequence, predispose to the development of osteoarticular pathology.
Hypercoagulable Disorders in Orthopaedics: Etiology, Considerations, and Management
Authors: Romano David , Boyle Maxwell , Isla Alexander E. , Teasdall Robert J. , Srinath Arjun , Aneja Arun 
Published: October 2021

» Hypercoagulable disorders (HCDs) can be inherited or acquired. An HCD of either etiology increases the chance of venous thromboembolic events (VTEs).» Patients with an HCD often have the condition discovered only after surgical complications.» We recommend that patients with a concern for or a known HCD be referred to the appropriate hematological specialist for workup and treatment.» Tourniquet use in the orthopaedic patient with an HCD is understudied and controversial. We recommend that tourniquets be avoided in the surgical management of patients with an HCD, if possible. When tourniquets are applied to patients with unknown HCD status, close follow-up and vigilant postoperative examinations should be undertaken.