bluuebunny/crossref_metadata_2025_split huggingface dataset:
INCREASING THE EFFICIENCY OF USING WOOD BIOMASS BY PROVIDING SPECIAL PROPERTIES
Authors: Zyryanov Mikhail A. , Medvedev Sergey O. , Kukushkin Alexey A. , Ponomarev Ilya S. , Gavrilova Natalya A. , Volkova Darya S. , Root Evgeny V. 
Published: March 2024

Background. The search for ways to use logging waste is a distinct scientific direction, due to the large number of their permanent formation. The importance of such studies is associated with the need to reduce the loss of valuable wood raw materials in the form of logging waste. One of the possible ways of using waste from logging industries is the production of wood chips using a mobile complex of machines with its further recycling into a wood-fiber semi-finished product. Wood-fiber semi-finished product is, as it is known nowadays, one of the environmentally friendly types of insulation and finishing materials. A significant limitation in the use of wood fiber in various types of production is low fire and bio-resistance. As a consequence, imparting specific properties to a wood-fiber semi-finished product in the form of fire and bio-resistance is an acute problem of the modern wood processing industry.
Purpose. Synthesis of 4-azofunctionalized pyrazoles with perfluoroalkyl substituent by cyclocondensation of polyfluorinated beta-diketones to confer special properties to the wood-fiber semi-finished product.
Materials and methods. The 1H, 13C NMR and 1H-13C HSQC spectra were registered at the Krasnoyarsk Regional Center for Collective Use of the FITC KNC SB RAS on a Bruker Avance III Fourier spectrometer with a frequency of 600 MHz equipped with sensitive helium probes with a diameter of 5 mm and 1.7 mm. TMS is used as an internal standard. Chromato-mass spectra were obtained using ISQ 7610 Single Quadrupole GC-MS and Shimadzu LC/MS-2020 instruments. Methyl alcohol was used as the mobile phase. IR spectra were recorded on the FT-801 (FT-801) SIMEX IR Fourier spectrometer with a spectral range from 450 to 5700 cm-1. UV spectra were recorded on a HELIOS OMEGA spectrophotometer equipped with a tungsten-halogen lamp in quartz cuvettes with a diameter of 1 cm at a concentration of 1·10-4 mol/l for 200-400 nm and a concentration of 1·10-2 mol/l for 400-800 nm in ethanol. Melting temperatures were determined in open capillaries on a PTP device (TU 25-11-1144-76).
Results. 3 new compounds were synthesized: 3(5)-(thiophene-2-yl)-4-nitroso-5(3)-(trifluoromethyl)-1H-pyrazole, 3(5)-phenyl-4-nitroso-5(3)-(trifluoromethyl)-1H-pyrazole and 3(5)-(naphthalene-2-yl)-4-nitroso-5(3)-(trifluoromethyl)-1H-pyrazole.
Conclusion. Thus, 3(5)-(thiophene-2-yl)-4-nitroso-5(3)-(trifluoromethyl)-1H-pyrazole, 3(5)-phenyl-4-nitroso-5(3)-(trifluoromethyl)-1H-pyrazole and 3(5)-(naphthalene-2-yl)-4-nitroso-5(3)-(trifluoromethyl)-1H-pyrazole. Complex separable mixtures of substances containing pyrazoline, β-diketone and target nitrosopyrazoles were formed by a single-reactor method. The two-stage method of production proposed by us increases the purity and yield of the target products.
HEALTH PRESERVATION OF SUBJECTS AS THE BASIS AND GOAL OF THE MANAGEMENT ACTIVITIES OF THE COMMANDERS OF THE RUSSIAN NATIONAL GUARD TROOPS (EXPERIMENTAL STUDY)
Authors: Timochkin Anton S. , Utyuganov Aleksey A. , Bolshakova Valentina M. 
Published: March 2024

Background. The work of the commanders of units of the National Guard Troops, aimed at protecting the health of their subordinates, acts as one of the most important components of the management activities of the commanders of the National Guard Troops of the Russian Federation. The results of the effectiveness of the work of the commanders of units for the protection of the health of subordinates of the Faculty of Special Forces of the Novosibirsk Military Institute of the VNG of the Russian Federation were studied and summarized. The focus on the health protection of subordinates lies in the fact that this is primarily associated with the performance of labor-intensive and specific functions by subordinates, and their performance in daily life of a wide range of tasks, as well as an increase in the service and combat load. The list of tasks assigned to the troops of the National Guard of the Russian Federation is determined by its diversity, and requires adequate management of subordinates at all its levels. The variety of tasks performed by servicemen (employees) implies possible deviations in professional behavior, as well as a weakening of physical abilities that they cannot always cope with on their own, which is why a serviceman, as a subject of health conservation, requires a special approach and study.
Materials and methods. The questionnaire method was used as a method of collecting empirical data. In total, 90 commanders of units of different levels of the Faculty of Special Forces of the Novosibirsk Military Institute named after General of the Army I.K. Yakovlev of the National Guard Troops.
Results. The study showed the leading role of unit commanders in the work of saving and maintaining the health of subordinates in the framework of managerial activities. It is assumed that the formed managerial competencies of commanders directly affect the level of safety and health promotion of subordinate military personnel.
Conclusion. The existing system of health saving in the troops of the National Guard of the Russian Federation has specifics and determines the features of the formation of health-saving behavior of military personnel, reflecting the requirements of the military organization and characterized by a system of values, norms and attitudes. The conclusion is made about the presence of objective problems in the knowledge of the theoretical aspects by the commanders of subdivisions (mainly junior command level) of the legal framework of labor protection.
Distortions Caused by Lending Fee Retention
Authors: Johnson Travis L. , Weitzner Gregory 
Published: March 2024

Some mutual funds retain a fraction of securities lending income by employing in-house lending agents. In a model with heterogeneous investors and endogenous delegation to mutual funds, we show that a subset of funds optimally engages in lending fee retention and as a result, overweights high lending fee stocks that endogenously underperform. We find empirical evidence consistent with our model’s predictions; active mutual funds we identify as fee retainers invest more in high-fee stocks and underperform relative to both nonretaining and nonlending funds. We also show that fee retention helps explain the negative relation between lending fees and future fee-inclusive stock returns. This paper was accepted by Lukas Schmid, finance. Supplemental Material: The online appendix and data files are available at https://doi.org/10.1287/mnsc.2021.01390 .
Cardiotoxicity induced by capecitabine and oxaliplatin in gastric cancer treatment: a rare case of cardiac arrest and cardiogenic shock
Authors: Gondal Muhammad Umer Riaz , Lemoine John , Segal Jared , Kiyani Zainab , Bilal Muhammad Ibraiz , Ansari Fawwad , McCauley Brian 
Published: March 2024

Introduction: Combination-based adjuvant chemotherapy utilising capecitabine and oxaliplatin is widely used in gastric cancer treatment. Rare but severe cardiac events such as prolonged QT, cardiac arrest and cardiogenic shock can result from their use. Case description: A 45-year-old female with gastric adenocarcinoma was started on capecitabine-oxaliplatin chemotherapy one week before presenting to the emergency department with weakness. Blood pressure was 78/56 mmHg, heart rate 140 bpm and oxygen saturation 85%. She became unresponsive with pulseless ventricular fibrillation; CPR was initiated with immediate intubation. She received two shocks with a return of spontaneous circulation. Laboratory tests revealed serum potassium (3.1 mmol/l), magnesium (1.1 mg/dl) and troponin (0.46 ng/ml). An EKG revealed sinus tachycardia with a prolonged QT interval (556 ms). The combined effects of capecitabine, oxaliplatin and electrolyte abnormalities likely contributed to the QT prolongation. An echocardiogram demonstrated an ejection fraction of 10%–15%. An emergent right-heart catheterisation showed right atrial pressure of 10 mmHg and pulmonary artery pressure of 30/18 mmHg; cardiac output and index were not recorded. An intra-aortic balloon pump was placed, and she was admitted to the ICU for cardiogenic shock requiring norepinephrine, vasopressin and dobutamine. A repeat echocardiogram showed a significantly improved ejection fraction of 65%, and she was discharged. Discussion: Capecitabine and oxaliplatin cardiotoxicity is an exceedingly rare occurrence, with both drugs reported to cause QT prolongation. Conclusion: Healthcare providers must recognise the QT prolongation effects of capecitabine and oxaliplatin, leading to life-threatening cardiac arrhythmias.
Efficacy and safety of minimally invasive laparoscopic surgery under general anesthesia for ovarian cancer
Authors: Qin Xian , Chen Chen , Liu Yang , Hua Xian-Hong , Li Jia-Yi , Liang Meng-Jie , Wu Fang 
Published: March 2024

BACKGROUND
Ovarian cancer is one of the most common malignant tumors in female reproductive system in the world, and the choice of its treatment is very important for the survival rate and prognosis of patients. Traditional open surgery is the main treatment for ovarian cancer, but it has the disadvantages of big trauma and slow recovery. With the continuous development of minimally invasive technology, minimally invasive laparoscopic surgery under general anesthesia has been gradually applied to the treatment of ovarian cancer because of its advantages of less trauma and quick recovery. However, the efficacy and safety of minimally invasive laparoscopic surgery under general anesthesia in the treatment of ovarian cancer are still controversial.
AIM
To explore the efficacy and safety of general anesthesia minimally invasive surgery in the treatment of ovarian cancer.
METHODS
The clinical data of 90 patients with early ovarian cancer in our hospital were analyzed retrospectively. According to the different surgical treatment methods, patients were divided into study group and control group (45 cases in each group). The study group received minimally invasive laparoscopic surgery under general anesthesia for ovarian cancer, while the control group received traditional open surgery for ovarian cancer. The European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30), clinical efficacy and safety of the two groups were compared.
RESULTS
The intraoperative blood loss, length of hospital stay, postoperative gas evacuation time, and postoperative EORTC QLQ-C30 score of the study group were significantly better than those of the control group (P < 0.05). The incidence of postoperative complications in the study group was significantly lower than in the control group (P < 0.05). The two groups had no significant differences in the preoperative adrenocorticotropic hormone (ACTH), androstenedione (AD), cortisol (Cor), cluster of differentiation 3 positive (CD3+), and cluster of differentiation 4 positive (CD4+) indexes (P > 0.05). In contrast, postoperatively, the study group's ACTH, AD, and Cor indexes were lower, and the CD3+ and CD4+ indexes were higher than those in the control group (P < 0.05).
CONCLUSION
Minimally invasive laparoscopic surgery under general anesthesia in patients with early ovarian cancer can significantly improve the efficacy and safety, improve the short-term prognosis and quality of life of patients, and is worth popularizing.
Unexplained fetal tachycardia: A case report
Authors: Wang Hui , Duan Run-Zi , Bai Xin-Jiu , Zhang Bing-Ting , Wang Jie , Song Wen-Xia 
Published: March 2024

BACKGROUND
This study aimed to explore the possible etiology and treatment of severe fetal tachycardia in the absence of organic disease and provide a reference for clinical management of severe fetal tachycardia.
CASE SUMMARY
A 29-year-old pregnant woman, with a gravidity 1 parity 0, presented with a fetal heart rate (FHR) of 243 beats per minute during a routine antenatal examination at 31 + 2 wk of gestation. Before termination of pregnancy at 38 wk of gestation, the FHR repeatedly showed serious abnormalities, lasting more than 30 min. However, the pregnant woman and the fetus had no clinical symptoms, and repeated examination revealed no organic lesions. The mother and the baby were regularly followed up.
CONCLUSION
This was a case of severe fetal tachycardia with no organic lesions and management based on clinical experience.
Direct generation of a 635 nm red random laser based on praseodymium (Pr)-doped ZBLAN fiber
Authors: Dong Zhipeng , Yao Yongjia , He Mingyue , Yang Xinyun , Jia Wencheng , Wang Hang , Luo Zhengqian 
Published: March 2024

Visible random fiber lasers have garnered significant attention due to their unique emission properties and potential applications in various fields. We first, to the best of our knowledge, demonstrated a compact all-fiber structure, red wavelength, and random fiber laser (RFL) based on a double-clad Pr-doped ZBLAN fiber. The simple half-open cavity consists of a high-reflectivity fiber pigtail mirror and the Pr-doped ZBLAN fiber. The Pr-doped ZBLAN fiber not only served as a gain medium but also offered random backward scattering. We investigated the effects of different lengths on output power and slope efficiency of the RFL. For 21 m Pr-doped fiber, the RFL emitted a maximum output power of 208.50 mW with a slope efficiency of 11.09%. For 15 m Pr-doped fiber, the maximum power decreased to 120.18 mW with the slope efficiency of 7.27%. We are also numerically simulating the output power versus the pump power at different fiber lengths based on power steady-state light propagation equations. This novel RFL has the potential for broad applications in fields such as display technology, spectroscopy, biomedical imaging, and optical sensing due to its unique properties and simple all-fiber structure.
Designing, development and validation of an app to reduce the response time of the emergency medical services
Authors: Gabella Júlia Loverde , Gualda Iago Amado Peres , Altoé Isadora Laguila , Beltrame Matheus Henrique Arruda , da Silva Pedro Henrique Aguillar , Costa Dalton Breno , Paggi Fernando César Grossi , Filho Sérgio Sanches Fabres , Massago Miyoko , de Paulo Luiz Gustavo , Bitencourt Marcos Rogério , Joiner Anjni Patel , Vissoci João Ricardo Nickenig , de Andrade Luciano 
Published: March 2024

Introduction
Delays in prehospital care attributable to the call-taking process can often be traced back to miscommunication, including uncertainty around the call location. Geolocation applications have the potential to streamline the call-taking process by accurately identifying the caller’s location.

Objective
To develop and validate an application to geolocate emergency calls and compare the response time of calls made via the application with those of conventional calls made to the Brazilian Medical Emergency System (Serviço de Atendimento Médico de Urgência—SAMU).

Methods
This study was conducted in two stages. First, a geolocating application for SAMU emergency calls (CHAMU192) was developed using a mixed methods approach based on design thinking and subsequently validated using the System Usability Scale (SUS). In the second stage, sending time of the geolocation information of the app was compared with the time taken to process information through conventional calls. For this, a hypothetical case control study was conducted with SAMU in the Maringá, Paraná, Brazil. A control group of 350 audio recordings of emergency calls from 2019 was compared to a set of test calls made through the CHAMU192 app. The CHAMU192 group consisted of 201 test calls in Maringá. In test calls, the location was obtained by GPS and sent to the SAMU communication system. Comparative analysis between groups was performed using the Mann-Whitney test.

Results
CHAMU192 had a SUS score of 90, corresponding to a “best imaginable” usability rating. The control group had a median response time of 35.67 seconds (26.00–48.12). The response time of the CHAMU192 group was 0.20 (0.15–0.24).

Conclusion
The use of the CHAMU192 app by emergency medical services could significantly reduce response time. The results demonstrate the potential of app improving the quality and patient outcomes related to the prehospital emergency care services.
Effect of community-based newborn care implementation strategies on access to and effective coverage of possible serious bacterial infection (PSBI) treatment for sick young infants during COVID-19 pandemic
Authors: Tiruneh Gizachew Tadele , Fesseha Nebreed , Emaway Dessalew , Betemariam Wuleta , Nigatu Tsinuel Girma , Magge Hema , Hirschhorn Lisa Ruth 
Published: March 2024

Background
In Ethiopia, neonatal mortality is persistently high. The country has been implementing community-based treatment of possible serious bacterial infection (PSBI) in young infants when referral to a hospital is not feasible since 2012. However, access to and quality of PSBI services remained low and were worsened by COVID-19. From November 2020 to June 2022, we conducted implementation research to mitigate the impact of COVID-19 and improve PSBI management implementation uptake and delivery in two woredas in Ethiopia.

Methods
In April-May 2021, guided by implementation research frameworks, we conducted formative research to understand the PSBI management implementation challenges, including those due to the COVID-19 pandemic. Through a participatory process engaging stakeholders, we designed adaptive implementation strategies to bridge identified gaps using mechanism mapping to achieve implementation outcomes. Strategies included training and coaching, supportive supervision and mentorship, technical support units, improved supply of essential commodities, and community awareness creation about PSBI and COVID-19. We conducted cross-sectional household surveys in the two woredas before (April 2021) and after the implementation of strategies (June 2022) to measure changes in targeted outcomes.

Results
We interviewed 4,262 and 4,082 women who gave live birth 2–14 months before data collection and identified 374 and 264 PSBI cases in April 2021 and June 2022, respectively. The prevalence of PSBI significantly decreased (p-value = 0.018) from 8.7% in April 2021 to 6.4% while the mothers’ care-seeking behavior from medical care for their sick newborns increased significantly from 56% to 91% (p-value <0.01). Effective coverage of severely ill young infants that took appropriate antibiotics significantly improved from 33% [95% CI: 25.5–40.7] to 62% [95% CI: 51.0–71.6]. Despite improvements in the uptake of PSBI treatment, persisting challenges at the facility and systems levels impeded optimal PSBI service delivery and uptake, including perceived low quality of service, lack of community trust, and shortage of supplies.

Conclusion
The participatory design and implementation of adaptive COVID-19 strategies effectively improved the uptake and delivery of PSBI treatment. Support systems were critical for frontline health workers to deliver PSBI services and create a resilient community health system to provide quality PSBI care during the pandemic. Additional strategies are needed to address persistent gaps, including improvement in client-provider interactions, supply of essential drugs, and increased social mobilization strategies targeting families and communities to further increase uptake.
Codeine and promethazine: Exploratory study on “lean” or “sizzurp” using national survey data and an online forum
Authors: Ware Orrin D. , Garcia-Romeu Albert , Zamarripa C. Austin , Hughes Tamera , Wager Leeza , Spindle Tory 
Published: March 2024

Background
The concoction known as "lean" containing codeine and promethazine, holds a prominent cultural presence and is often referenced in mass media platforms (e.g., music and social media). Surprisingly, there’s a scarcity of national data characterizing the use of lean. Therefore, the current study investigated the use of lean using national survey data and online forum participant input, and focused on identifying concurrent substance use, exploring co-administration with other substances (e.g., alcohol, cannabis), and determining lean-related experiences.

Methods
We analyzed data from the National Survey on Drug Use and Health (NSDUH) spanning 2007–2019, identifying persons who used lean (weighted N = 42,275). Additionally, we conducted a Reddit-based study to gather insights about lean consumtion (N = 192).

Results
The NSDUH data indicated that lean use was most prevalent among teenagers and young adults (ages 13–21), accounting for 66% of the sample. This trend was more pronounced in male respondents (75%) compared to females. Additionally, the use was predominantly observed among Black/African American (29%), Hispanic (28%), and White (33%) populations, with these groups also reporting higher levels of concurrent alcohol and cannabis use. Similarly, findings from Reddit showed that individuals who used lean were predominantly male (67%) and exhibited elevated concurrent rates of alcohol (83%) and cannabis (46%) use in the past 30 days. Moreover, approximately 66% of respondents met criteria for severe lean use disorder, and 37% acknowledged driving under its influence.

Conclusion
The NSDUH data found that mostly young adult males reported consuming lean in the past twelve months, though the racial/ethnic breakdown of persons who used lean was diverse. The Reddit data found that most individuals in the sample met the criteria for a substance use disorder pertaining to their lean consumption. These findings underscore the clinical significance and necessity for further controlled research on lean.