bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mechanical characterization of randomly oriented short Sansevieria Trifasciata natural fibre composites
Authors: Fantin Irudaya Raj  , Appadurai  , Lurthu Pushparaj  , Chithambara Thanu  
Published: July 2023

Abstract
The present work investigates the mechanical characteristics of randomly oriented short Sansevieria Trifasciata Fibre Polyester (STFP) composites. The STFP composites are fabricated using compression moulding methods with varying fibre weight percentages (5 %–50 %) and fibre lengths (5 mm–50 mm). It has been observed that the impact, flexural, and tensile strength of STFPs improve as the length of the fibre increases, up to a maximum of 40 mm. After that, these properties start to decrease as the length of the fibre further increases. Further, the analysis revealed that STFPs exhibited an increase in properties when the fibre weight percentage was less than 40 %, followed by a decrease in properties as the fibre percentage increased beyond that point. The impact strength of STFP is around 8.2 J/cm2. Similarly, the STFP has a flexural modulus and strength of about 3.4 GPa and 82.6 MPa, respectively. Lastly, the tensile strength of STFP is around 78.26 MPa, the elongation at break is between 6.25 % and 9.36 %, and the Young’s modulus is 11.8 GPa. The matrix and fibre interaction were examined by Scanning Electron Microscopy (SEM). Furthermore, Thermogravimetric (TGA) and Differential Scanning Calorimeter (DSC) analyses are carried out. From these analyses, the thermal stability of STFP is 200 °C and its activation energy is 65.48 kJ/mol. After a thorough comparison with other well-known natural fibres, the proposed properties of STFP demonstrate its superiority as a practical and effective natural fibre composite.
Fostering Excellent Research by the Austrian Micro Data Center (AMDC)
Authors: Fuchs Regina , Göllner Tobias , Hartmann Simon , Thomas Tobias 
Published: July 2023

Abstract
Access to high quality microdata is a precondition for the empirical investigation of many interrelationships in the economic and social sciences. Therefore, well-functioning research data infrastructure is a cornerstone of a successful science location. While other countries in Europe, such as Denmark and the Netherlands, have had microdata centres at their respective National Statistical Offices for quite some time, microdata access for research purposes in Austria was very limited for a long time. Established in 2022, the Austrian Micro Data Center (AMDC) at Statistics Austria enables researchers of accredited research institutions to work with pseudonymized microdata on individuals and firms. The available microdata includes not just microdata of Statistics Austria but also registry data of the Austrian federal government. The main novelty is that microdata can be linked deterministically to each other via unique pseudonymized identifiers among data sets of Statistics Austria, administrative registers, and also to microdata brought in by the researchers themselves. The AMDC is operated by Statistics Austria and its services are open to research institutions worldwide.
Link handling for the atmospheric turbulence using LSTM neural networks in free space optical (FSO) communication
Authors: Lapsiwala Pranav B. , Vasava Priteshkumar B. 
Published: July 2023

Abstract
Free-space optical (FSO) communication is an emerging technology that uses light waves to transmit data, providing a faster and more efficient alternative to traditional wired communication. However, FSO communication is susceptible to atmospheric turbulence caused by factors such as rain, snow, and fog. To overcome this challenge, this study employs artificial neural network (ANN) and long short-term memory (LSTM) models to analyze the impact of atmospheric turbulence on FSO communication. The results indicate that higher wavelengths experience less attenuation than lower wavelengths in the presence of fog. The use of ANN and LSTM models to analyze the attenuation of various wavelengths in the presence of fog has shown that higher wavelengths experience less attenuation than lower wavelengths. Additionally, the LSTM model outperforms the ANN model in handling atmospheric turbulence, with an accuracy of 64.68 % compared to 63.98 %. These findings highlight the need for adaptive networks that can quickly adjust to traffic situations while being cost-effective. As the fiber optics industry continues to expand and evolve, there is potential for further developments in optical communications that prioritize speed, efficiency, and flexibility. As technology advances, the pursuit of faster and more reliable communication will continue to drive innovation in this field.
High performance of photonics crystals Demux with an integrated channel drop filter based on annular periodic ring cavity
Authors: Larioui Fateh , Lebbal Mohamed Redha , Boukebeche Mouncef , Zabouri Amira , Bouchemat Mohamed 
Published: July 2023

Abstract
In this work, we are interested in the design of a basic filter structure based on an annular ring cavity where we study its characteristics and its performance in terms of transmission and selectivity of the signal. The basic structure is a 2D photonic crystal (PC) with holes in the substrate which are more suitable for different PC manufacturing processes. Based on the optimization of the filter structure results, we created a high performance structure and improved a 4 channels demultiplexer (DEMUX) with an optical parameters which are the transmission efficiency, the quality factor and the crosstalk with average values of 97.25, 3171 and −26.58 dB, respectively, it had a significant role in optical communication networks. The compact size of the proposed DEMUX is 211.7 μm2 which is suitable for the integrated optics. To determine the photonic band gap (PBG) of our proposed structure, we used the plane wave expansion (PWE) method and the finite difference time domain (FDTD) method used to study normalized transmission.
The crystal structure of [1-(4-(trifluoromethyl)phenyl)-3,4-dihydroquinolin-2(1H)-one], C16H12F3NO
Authors: Pu Xuewei , Meng Fanjie , Zhang Shaoliang 
Published: July 2023

Abstract
C16H12F3NO, orthorhombic, P212121 (no. 19), a = 6.9928(6) Å, b = 8.9764(8) Å, c = 21.216(2) Å, V = 1331.7(2) Å3, Z = 2, Rgt
(F) = 0.0583, wRref
(F
2) = 0.1552, T = 298 K.
The crystal structure of nitroterephthalic acid, C8H5NO6
Authors: Bourletidis How Jeraldine Maire , Lemmerer Andreas , Smith Mark G. 
Published: July 2023

Abstract
C8H5NO6, monoclinic, C2/c (no.15), a = 12.8112(9) Å, b = 11.7614(8) Å, c = 11.1954(8) Å, β = 100.726(3)°, V = 1657.4(2) Å3, Z = 8, Rgt
(F) = 0.042, wRref
(F
2) = 0.1247, T = 173 K.
Optimizing bending strength of laminated bamboo using confined bamboo with softwoods
Authors: Cruz Alfonso , Takeuchi Caori 
Published: July 2023

Abstract
The objective of the study was to improve the stiffness and bending strength of laminated bamboo through confinement with softwood. A total of 144 beams were tested, divided into 6 groups of 24 specimens each. The tests were conducted on specimens of laminated bamboo, wood, and composite sections with different levels of confined bamboo laminate (20, 40, 60, and 80%). The results indicated that the composite exhibited optimal behavior when the ratio of bamboo to wood was between 46 and 54%. Furthermore, the composite demonstrated a bending modulus of elasticity that was 16.6% higher and a modulus of rupture that was 18.3% higher than the values predicted by the mixing rule. A mathematical model was developed to predict the design mechanical properties based on composite thickness. This model was validated through 18 additional bending tests. This new material is an environmentally sustainable alternative that has the potential to be used as beams in buildings, providing improved mechanical performance, reduced weight, and lower manufacturing cost compared to bamboo laminates.
Investigation of aggregation behavior and surface properties of cationic surface-active ionic liquids and sodium carboxymethylcellulose mixed systems
Authors: Ahsan Safiya , Dhanagar Arun , Shaheen Arifa 
Published: July 2023

Abstract
The impact of different concentrations of sodium carboxymethyl cellulose (NaCMC) on the micellization process in cationic, ester-functionalized, ethyl-substituted imidazolium-based surface-active ionic liquids (SAILs) ([C
n
Eeim]Br where, n = 12, 14, 16) were investigated using specific conductivity and surface tension measurements at 298 K. The study focused on determining the critical micelle concentration (CMC) of the three pure SAILs and their mixtures with NaCMC to evaluate various thermodynamic and interfacial parameters. The results showed that the CMC values decreased significantly with increasing hydrophobicity of the SAILs, while the CMC increased with a gradual increase in the NaCMC mole fraction in the SAIL–NaCMC mixed systems. It was observed that the excess free energy of micellization (

∆
G

e
x

m

${{\increment}G}_{ex}^{m}$

) and the minimum free energy of surface at equilibrium (

∆
G

min
s

${{\increment}G}_{\mathrm{min}}^{s}$

) exhibited an opposite behaviour, indicating that the formed mixed micelles were stable while the formed surface was unstable. The results of this study are useful for evaluating the properties of SAIL–NaCMC mixed systems to improve and better understand their applications in the food, medical and cosmetic industries.
Gitar Tunggal Lampung: Enculturation and Ethnopedagogy in Advancing Formal Music Education
Authors: Hidayatullah Riyan 
Published: July 2023

Formal music education often uses systematic teaching methods, a planned curriculum, leveling, organization, and standardized learning stages. From a pedagogical perspective, learning music provides a more imaginative, improvisatory learning structure besides all these standard rules. By capturing the social practice of music in the community, music scholars can enrich their academic experience and ideas about designing informal music learning in the classroom. The gitar tunggal players from Lampung may serve as ideas for those learning music formally. While they lack musical and academic literacy, they also provide useful self-learning concepts. Over the past four years, data for this study were gathered using ethnomusicological methods. Online databases were used in addition to the primary data collected through fieldwork. When designing curricula, music scholars might include the ideas of enculturation and Ethno pedagogy. A useful suggestion for enhancing formal music education is to base instruction on local culture and learn it from vernacular musicians in Lampung.
Current endometriosis care and opportunities for improvement
Authors: Pickett Charlotte , Foster Warren G , Agarwal Sanjay K 
Published: July 2023

Endometriosis is a chronic disease associated with debilitating pain that affects many people assigned female at birth, from menarche through menopause, not just causing pain and infertility but also negatively impacting quality of life, participation in daily activities, productivity, and income. It is associated with increased incidence of obstetric and neonatal complications, anxiety, other chronic diseases, and substantial healthcare costs. Despite the profound negative impact of endometriosis on quality of life, current treatment options remain suboptimal and many patients express dissatisfaction with current care. The prevailing acute-care, single-provider model in which the provider works in relative isolation and thus with limited diagnostic and therapeutic strategies readily available proves inadequate for treating endometriosis. Patients would benefit from earlier diagnosis and referral to a center capable of providing a comprehensive and multimodal management plan that utilizes a chronic care model. Often this can only be achieved through multidisciplinary teams of providers with expertise in endometriosis. The authors acknowledge that many low- and middle-income countries do not have the resources to support such centers but could still benefit from any breakthroughs in treatment they bring about. Researchers need to agree on standardized core outcome measures, relevant to patients with endometriosis and the healthcare system as a whole. Only through increased societal and healthcare provider education and recognition of endometriosis as a chronic disease can we achieve better treatment outcomes.

Lay summary
Endometriosis is a disease that affects about one out of every women. It occurs when tissue like that which is normally located inside the uterus is present outside the uterus. The body’s reaction to this tissue causes inflammation and pain, usually so severe that it disrupts daily activities. Our current medical system does not serve these patients well. Patients with endometriosis often must see many different doctors over many years before learning of their disease and getting treatment. We need to increase awareness of endometriosis and think of it as a chronic disease like diabetes or heart disease. We can improve care by creating centers where experienced teams work together to treat patients and study treatment impacts on quality of life. It is time to adopt a new model for caring for patients with endometriosis.
Integrating artificial intelligence and sustainable technologies in strategic renewable energy and Power-to-X projects: A review of global best practices, risks and future prospects
Authors: Navarra Diego 
Published: July 2023

AbstractThe objective of this paper is to review the academic literature and identify best practices on the integration of artificial intelligence and sustainable technologies in strategic renewable energy and Power-to-X projects globally. We reflect upon the way in which exemplary case studies can be used to foster a common shared view among different policy makers to highlight new ways through which energy efficiency and systemic improvements in the energy sector may be achieved while curbing carbon emissions and addressing climate change. The main risks, challenges and mitigations for integrating artificial intelligence and sustainable technologies in energy systems are also educed from both the academic literature as well as interviews with experts. Our findings indicate that while the integration of artificial intelligence and sustainable technologies can support energy efficiency and systemic improvements in the energy sector, there are several risks that were not previously identified in the literature. Critical areas of future development for academic research as well as opportunities for professional practice are presented.
Energy efficiency in healthcare institutions
Authors: Alotaiby Rana , Krenyácz Éva 
Published: July 2023

AbstractThe Environmental Protection Agency classifies healthcare as one of the leading energy-consuming industries. Extensive energy is needed around the clock in healthcare institutions for lighting, ventilation, and operating medical equipment. However, there is a growing concern over the sustainability of energy utilization by healthcare institutions worldwide. This narrative review thus seeks to examine energy efficiency and utilization in healthcare institutions and energy management and conservation techniques and make recommendations for future optimal usage. The paper notes that healthcare institutions use different quantities of energy from diverse sources, including hydropower, biomass, solar energy, and wind power. However, energy consumption varies from one institution to another, with the number of beds and intensity of healthcare operations, with an average of 0.27 MWh m−2. Moreover, this review also identified various techniques and measures to enhance energy efficiency, such as the variant refrigerant flow technology and the combination of renewable energy sources with diesel generators to reduce the cost of electricity. Overall, healthcare institutions need energy management systems such as automated energy monitoring technologies, to check the systems' efficiency. The same techniques can also help Middle Eastern healthcare institutions with efficient energy utilization. Ultimately, the literature review aims to introduce an approach that focuses on reducing site-level consumption of energy while increasing the quality of the energy used and hence, helping reduce energy costs while conserving the environment.
Effects of a More Selective Arteriovenous Fistula Strategy on Vascular Access Outcomes
Authors: Allon Michael , Al-Balas Alian , Young Carlton J. , Cutter Gary R. , Lee Timmy 
Published: July 2023

Significance Statement
The optimal choice of vascular access for patients undergoing hemodialysis—arteriovenous fistula (AVF) or arteriovenous graft (AVG)—remains controversial. In a pragmatic observational study of 692 patients, the authors found that among patients who initiated hemodialysis with a central vein catheter (CVC), a strategy that maximized AVF placement resulted in a higher frequency of access procedures and greater access management costs for patients who initially received an AVF than an AVG. A more selective policy that avoided AVF placement if an AVF was predicted to be at high risk of failure resulted in a lower frequency of access procedures and access costs in patients receiving an AVF versus an AVG. These findings suggest that clinicians should be more selective in placing AVFs because this approach improves vascular access outcomes.

Background
The optimal choice of initial vascular access—arteriovenous fistula (AVF) or graft (AVG)—remains controversial, particularly in patients initiating hemodialysis with a central venous catheter (CVC).

Methods
In a pragmatic observational study of patients who initiated hemodialysis with a CVC and subsequently received an AVF or AVG, we compared a less selective vascular access strategy of maximizing AVF creation (period 1; 408 patients in 2004 through 2012) with a more selective policy of avoiding AVF creation if failure was likely (period 2; 284 patients in 2013 through 2019). Prespecified end points included frequency of vascular access procedures, access management costs, and duration of catheter dependence. We also compared access outcomes in all patients with an initial AVF or AVG in the two periods.

Results
An initial AVG placement was significantly more common in period 2 (41%) versus period 1 (28%). Frequency of all access procedures per 100 patient-years was significantly higher in patients with an initial AVF than an AVG in period 1 and lower in period 2. Median annual access management costs were significantly higher among patients with AVF ($10,642) versus patients with AVG ($6810) in period 1 but significantly lower in period 2 ($5481 versus $8253, respectively). Years of catheter dependence per 100 patient-years was three-fold higher in patients with AVF versus patients with AVG in period 1 (23.3 versus 8.1, respectively), but only 30% higher in period 2 (20.8 versus 16.0, respectively). When all patients were aggregated, the median annual access management cost was significantly lower in period 2 ($6757) than in period 1 ($9781).

Conclusions
A more selective approach to AVF placement reduces frequency of vascular access procedures and cost of access management.
Untersuchungen der korngrößenspezifischen Wirksamkeit von Niederschlagswasserbehandlungsanlagen mit einem Partikelzähler
Authors: Gruening Helmut , Schmitz Thorsten 
Published: July 2023

Abfiltrierbare Stoffe (AFS) werden als Indikatorparameter für die Verunreinigung von Oberflächenabflüssen und zur Wirksamkeitsbetrachtung von Regenwasserbehandlungsanlagen verwendet. Das Arbeitsblatt DWA-A 102 (DWA/BWK, 2020) empfiehlt den Feinanteil der Abfiltrierbaren Stoffe (AFS63) zur Bewertung der Verunreinigung von Niederschlagswasser und der durch Einleitung hervorgerufene Gewässerbelastung. Als AFS werden sämtliche Sink-, Schweb- und Schwimmstoffe bezeichnet, die ein Filter mit einer Porengröße von 0,45 µm zurückhält. Der Feinanteil AFS63 fasst die Abfiltrierbaren Stoffe der Größenordnung 0,45 µm bis 63 µm zusammen. Die Einflussgrößen und Bedingungen bei der Bestimmung des Parameters AFS63 sind jedoch komplex. Das beginnt bei der Entnahme einer repräsentativen Probe und setzt sich bis zur Bestimmung des Parameters fort. Während die Bestimmung der AFS in Normen geregelt ist, wird die verbindliche Bestimmung von AFS63 derzeit diskutiert. Vor dem Hintergrund, dass mit dem Parameter AFS63 die Wirksamkeit von Behandlungsanlagen nachgewiesen wird, ist eine korrekte Ermittlung zur Bilanzierung der Verunreinigung von Zu- und Abflüssen von besonderer Bedeutung. Als sinnvolle Ergänzung zur bisherigen Bestimmungsmethode hat sich eine vergleichsweise einfache und repräsentative Bestimmung mit einem Partikelzähler herausgestellt.
Soft tissue sarcomas of the hand and foot: characteristics of progression and main surgical approaches
Authors: Gribkova E. I. , Musaev E. R. 
Published: July 2023

Soft tissue sarcomas of the hand and foot comprise a rare subgroup of mesenchymal tumors with more favorable oncological prognosis. For this type of tumors, several options of surgical treatment exist depending on histological subtype, size and local tumor advancement. Additionally, due to significant functional load on the distal parts of the limbs, surgical techniques for treatment of these patients have specific characteristics. However, publications on progression characteristics and prognosis of soft tissue sarcomas of the hand and foot are lacking.This review describes soft tissue sarcomas of the hand and foot and analyzes surgical techniques for treatment of patients with this type of tumor.
Features of routing, diagnosis and combined treatment of pathological fractures of long tubular bones of tumor etiology
Authors: Safin I. R. , Rodionova A. Yu. , Rukavishnikov D. V. , Khasanov R. Sh. , Yaroslavlev A. A. , Safin R. N. 
Published: July 2023

Introduction. In the structure of fractures of long tubular bones, pathological fractures account for about 1 %, and 2/3 of all cases are pathological fractures associated with bone metastases. Primary bone tumors are complicated by the development of a pathological fracture in 1– 10 % of cases, bone metastases in 8–30 % of cases. With a pathological fracture, as the primary manifestation of the tumor process, as a rule, patients come to the attention of orthopedic traumatologists providing emergency care. In the practice of oncologists, there are often patients with bone tumors who have performed deliberately non-radical surgical interventions associated with insufficient oncological alertness of traumatologists.Aim. To study and present the results of combined treatment of patients with bone tumors complicated by a pathological fracture.Materials and methods. The results of treatment and observation of 159 patients with tumors of long tubular bones complicated by a pathological fracture or the threat of its development, who received combined or surgical treatment and were observed in the polyclinic of the Republican Oncological Dispensary from 2008 to 2020, were analyzed.Results. A pathological fracture that has taken place, in the absence of somatic contraindications, is not a contraindication to neoadjuvant treatment, which allows performing organ-preserving surgical treatment with optimal local and systemic control. However, with verified bone metastases, when segmental bone resections are not shown, and the diagnosis of myeloma (solitary plasmocytoma) is established, it is permissible to perform surgery in a trauma hospital, after consulting an oncologist.Conclusion. The combined approach in the treatment of malignant bone tumors complicated by a pathological fracture makes it possible to perform a functional-saving, organ-preserving surgical intervention, significantly reducing the risk of tumor recurrence and systemic progression.