bluuebunny/crossref_metadata_2025_split huggingface dataset:
Caracterización de la vocería oficial en situaciones de crisis humanitaria
Authors: Maximiliano García Diego 
Published: January 2022

Objetivo: La vocería oficial de los gobiernos nacionales ha sido uno de los principales canales de comunicación durante la crisis por la pandemia de COVID-19. En el marco del proyecto de investigación, el objetivo del autor es analizar y caracterizar las comunicaciones de los gobiernos de Argentina y de España al momento de anunciar: a) los primeros casos detectados de COVID-19, b) los anuncios de cuarentena y c) los informes cotidianos de avance de la pandemia en cada país.
Diseño y enfoque: La selección de los casos de Argentina y España responde a los ámbitos de investigación del autor: por un lado, forma parte del equipo de investigación antes mencionado, que tiene su sede en la Universidad Salesiana de Argentina, por otro lado, está realizando sus estudios de doctorado en la Universidad Complutense de Madrid, en donde está estudiando aspectos vinculados con la comunicación de crisis. Así, la elección de ambos países resulta relevante para ambos propósitos de investigación.En este caso, entonces, se toman elementos de la sociolingüística para analizar y comparar las tres instancias de la vocería, a fin de detectar similitudes y diferencias en las estrategias llevadas a cabo por cada administración. El corpus está compuesto por registros en video publicados en los canales de cada gobierno en YouTube y sus respectivas transcripciones. A eso se suma, en algunos casos puntuales, el registro publicado por medios de comunicación de cada país.
Resultados: Luego de este análisis se llegan a definir características comunes para describir el macro-género “vocería oficial en situaciones de crisis humanitaria”, compuesto por los géneros “anuncio del primer caso”, “anuncios presidenciales de cuarentenas” e “informe diario”. Este macro-género, más allá de la pandemia, podría resultar útil como esquema para otras situaciones críticas que requieran comunicaciones gubernamentales en un período relativamente extenso de tiempo.
Geomorphologic Change in Nagavali River Basin: Geospatial Approach
Authors: Mishra Siba Prasad , Patel Ashish , Mishra Abhisek , Kumar Chandan 
Published: January 2022

The Nagavali river basin (NRB), along east coast of India investigated for its land use and land cover changes (LULCC) in the golden spike period of Anthropocene Epoch. Attempts made to assess the vicissitudes, causes, and consequences of natural resources, and soil/water resources of the NRB in last three decades as significant changes in hydro-climatic variables occurred. The interstate basin is well developed in lower reaches (north Andhra Pradesh) whereas upper stretches, South Odisha is less organized.
GIS and remote sensing are efficient tools for an ideal study of LULCC of the area. Present work evaluates the dynamics of LULCC of NRB. LANDSAT-5, LANDSAT-8, of 1990, 2000, 2010 and 2020, respectively, were digitally classified for land use land cover mapping. The changing aspects of LULCC critically analyzed for three span, 1990–2000, 2000–2010 and 2010–2020. Through Normalized Difference Vegetation Index (NDVI) of the NRB examined carefully to assess the recent LULCC pattern.
Major changes are sue to exchanges of areas are in between forest and built-up land followed by water body. The transformations are from forest to human habitation; especially built-up area that constitutes major percentage of the total landscape. The study shows that emphasis is necessary on more water consolidation projects in the upper Nagavali Basin considering the long-term LULC trend analysis.
Prevention of the Development of Chronic Diseases in the Era of the COVID-19 Pandemic: A Systematic Review
Authors: Stepanenko Elena Andreevna , Isaeva Liana Aslanbekovna , Sokolova Alena Igorevna , Vinogradova Irina Vladimirovna , Labuznov Alexander Vladimirovich , Ignatyeva Olga Valeryevna 
Published: January 2022

The article discusses the features of the prevention of chronic diseases in the era of the COVID-19 pandemic. It is known that patients suffering from various chronic diseases have weakened immunity, and this forces doctors to attribute such patients to the risk group, whose participants are most susceptible to the severe course of coronavirus disease.
In light of all the above, the main task of medical workers today is to prevent the development of chronic diseases as such, and therefore the prevention of chronic diseases in general is a priority for medicine today. An attempt to preserve the health of the nation and prevent the mortality rate from increasing is the main task of doctors, secondary and junior medical personnel. That is why preventive work among the population, especially the older age group, should be carried out actively and systematically today.
Developmental Coordination Disorder, Impact of Fine Motor Skills on Handwriting and Academic Performance in School Going Children: A Research Protocol
Authors: Morghade Shwetambari , Qureshi Mohammed Irshad , Kovela Rakesh Krishna 
Published: January 2022

Introduction: Developmental Coordination Disorder (DCD) is a neurodevelopmental disease that inhibits muscle coordination that affects everyday life tasks and academic achievement. Children with DCD are often characterized as "clumsy" and "uncoordinated" and often lead to performance problems that most often create (TD) children can easily execute. Generally, treatments for DCD are not expected to succeed and the disease has no treatment. Therapies, on the other hand, will include skills, solutions, and accommodations that make it simpler for children with DCD to execute the motor activities required in everyday life and school settings. Some studies emphasize that child’s developmental status plays an important role in academic performance, but there is limited evidence which focuses on fine motor performance in children suspected of DCD, and its effect on their handwriting and academic performance.
Methodology: This observational cross-sectional study will be conducted at several schools around Wardha, with 1511 school-aged children of both genders ranging in age from 8 to 14 years participating.
Discussion: Some studies stress the importance of a child's developmental status in academic achievement, however, there is minimal data that focus on fine motor skills in children suspected of having DCD and its impact on handwriting and academic performance.
Conclusion: This study will help us in determining the prevalence of developmental coordination disorder and the relationship between handwriting and academic performance in these children.
Phytochemical Screening and In-vitro Free Radical Scavenging Activity of Unani Formulation Habb-e-Asgand
Authors: Ahemad Ansari Imtiyaz Ahmed Tufail , Aejazuddin Qazi Majaz Ahamad , Khan G. J. 
Published: January 2022

Aim: In the present work we aimed to perform phytochemical Screening and In-vitro free radical scavenging activity of Unani formulation Habb-e-asgand.
Study Design: The present work was designed to determine the total antioxidant capacity (TAC), Ferrous reducing antioxidant capacity assay (FRAC), DPPH radical scavenging assay, hydroxyl radical scavenging activity, and nitric oxide scavenging assay.
Place and Duration of the Study: The present work has been carried out at Ali-allana College of Pharmacy, Akkalkuwa, from February-2020 to November-2020.
Methodology: Habb-e-asgand (HEA), a Unani polyherbal drug used in arthritis, gout, and joint pain, is a blend of many herbal medicinal plants. Scientific attempts to test and validate its effectiveness are scarce. The selected Unani formulation was evaluated for DPPH radical scavenging activity, hydroxyl radical scavenging activity, and nitric oxide scavenging assay. The given formulation also evaluated the total antioxidant capacity and the reducing antioxidant capacity of ferrous metals.
Results: It was found that DPPH radical scavenging activity of HEA and BHT at a concentration of 100 μg/ml was 95±0.74 and 59±0.94 μg/ml. Hydroxyl radical scavenging activity of HEA, at the concentration of 100μg/ml, was 55±0.64, whereas at the same concentration catechin was 63±0.84 μg/ml. The IC50 value for nitric acid scavenging activity was found to be 49.60±1.57 for HEA, and 186.34 ± 3.28 µg/ml for ascorbic acid. The result obtained from TAC and FRAC activity demonstrates that HEA possessed the highest TAC and FRAC values in comparison to standards catechin and ascorbic acid.
Conclusion: From the above results it was concluded that HEA has a potent antioxidant activity. HEA showed moderate to high TAC and FRAC in dose-dependent manner compared to standards catechin and ascorbic acid. HEA shows dose-dependent DPPH and hydroxyl radical scavenging activity. Nitric oxide generation was observed after the incubation of solutions of sodium nitroprusside in PBS at 25°C for 150 min. HEA effectively reduced the generation of nitric oxide.
Spinal Cord Injuries in Emergency Medicine
Authors: Sonbul Hisham Mohammed , Aljohani Razan Mohammad N. , Alqefari Abdullah Sulaiman , Alasfoor Zahra Ahmed , Abualsaud Noor Ayman Adel , Alsrori Zahra Mohammed , Almokri Razan Mohammad S. , Alfawzan Hamoud Mohammed , Alayshan Meshari Ibrahim A. , Alshammari Malak Hamed A. , Gharib Sultan Mahmoud S. , Alzahrani Talal Mohammed , Bahattab Rawan Mohammed O. 
Published: January 2022

Spinal cord injury is a serious medical disorder that frequently leads in significant morbidity and permanent impairment. Direct damage to the spinal cord or compression owing to broken vertebrae or masses such as epidural hematomas or abscesses are the most common causes of spinal cord injury. When examining a blunt trauma victim, medical professionals are taught to presume the patient has a spinal column damage unless it is proven otherwise. The early examination of a patient with a suspected cervical spinal injury in the emergency department (ED) is no different than that of any other trauma patient. The ABCs, or airway, breathing, and circulation, procedures are being taken into consideration. In acute spinal cord damage, hypotension can be hemorrhagic or neurogenic. Because of the high prevalence of concomitant injuries and vital sign confusion in acute spinal cord injury, a thorough search for hidden sources of bleeding is required. Surgical removal of bone fragments, foreign objects, herniated discs, or broken vertebrae that appear to be compressing the spine is frequently required. In order to avoid future discomfort or deformity, surgery may be required to stabilize the spine. In this review we’ll be looking at spinal cord injury, it’s diagnosis and treatment.
Antagonistic Activity of Bacteriocins Produced by Lactobacillus Isolates against Multidrug Resistant Pathogens
Authors: Bashir Asma , Ali Kashif 
Published: January 2022

Background: Multi drug-resistance pose a great threat to public health and are responsible for various life-threatening ailments. There is a crucial need to control the outbreaks by finding alternatives to the conventional drugs available. Over the last few years, the usage of probiotics, including Lactobacillus spp. and their bacteriocins has gained much attention to ward off various diseases.
Methods: This study was focused on characterizing bacteriocins extracted from Lactobacillus spp. and assessing their antagonistic effect against multi-drug resistant bacteria. Fifteen Lactobacillus spp. were isolated and identified from Pakistani dairy and fermented products (raw milk, cheese, butter milk, pickle and yoghurt). All the isolates were preliminarily screened by the antagonism method of agar well diffusion method, and the bacteriocins were isolated by ammonium sulphate method. Afterwards, to evaluate the release of bacteriocin in liquid medium, the Cell-Free Supernatant Fluid (CFSF) of the best producer strains were tested by agar well diffusion assay. To assess the thermostability of the bacteriocins, they were subjected to temperatures of 40ᴼC, 60ᴼC, 80ᴼC and 100ᴼC.
Results: The study allowed the selection of five bacteriocin producing strains Lactobacillus acidophilus KAL1, Lactobacillus casei KAL3, Lactobacillus plantarum KAL5, Lactobacillus reuteri KAL6 and Lactobacillus spp. delbrukei KAL7, endowed with the strongest and broadest inhibitory ability against both Gram-positive (Methicillin Resistant Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa) bacteria. Bacteriocins isolated were significantly thermostable with activity at 80ᴼC (30, 20 min) respectively. Moreover, all the bacteriocins were considerably stable at a range of pH (4–8) but all the activity was eliminated against proteolytic enzyme Proteinase K.
Conclusion: From this study, it was concluded that bacteriocin extracts from five isolated Lactobacillus spp. can be considered a preferable candidate against multi-drug resistant pathogens. These partially purified bacteriocins should be further processed to attain purified product that could be useful for further studies for the control of pathogens, food spoilage and preservation purposes.
High‐Voltage Aqueous Mg‐Ion Batteries Enabled by Solvation Structure Reorganization
Authors: Fu Qiang , Wu Xiaoyu , Luo Xianlin , Indris Sylvio , Sarapulova Angelina , Bauer Marina , Wang Zhengqi , Knapp Michael , Ehrenberg Helmut , Wei Yingjin , Dsoke Sonia 
Published: January 2022

AbstractHerein, an eco‐friendly and high safety aqueous Mg‐ion electrolyte (AME) with a wide electrochemical stability window (ESW) ≈3.7 V, containing polyethylene glycol (PEG) and low‐concentration salt (0.8 m Mg(TFSI)2), is proposed by solvation structure reorganization of AME. The PEG agent significantly alters the Mg2+ solvation and hydrogen bonds network of AMEs and forms the direct coordination of Mg2+ and TFSI‐, thus enhancing the physicochemical and electrochemical properties of electrolytes. As an exemplary material, V2O5 nanowires are tested in this new AME and exhibit initial high discharge/charge capacity of 359/326 mAh g‐1 and high capacity retention of 80% after 100 cycles. The high crystalline α‐V2O5 shows two 2‐phase transition processes with the formation of ε‐Mg0.6V2O5 and Mg‐rich MgxV2O5 (x ≈1.0) during the first discharge. Mg‐rich MgxV2O5 (x ≈1.0) phase formed through electrochemical Mg‐ion intercalation at room temperature is for the first time observed via XRD. Meanwhile, the cathode electrolyte interphase (CEI) in aqueous Mg‐ion batteries is revealed for the first time. MgF2 originating from the decomposition of TFSI‐ is identified as the dominant component. This work offers a new approach for designing high‐safety, low‐cost, eco‐friendly, and large ESW electrolytes for practical and novel aqueous multivalent batteries.
Cobalt(II)‐Hexaazatriphenylene Hexacarbonitrile Coordination Compounds Based Cathode Materials with High Capacity and Long Cycle Stability
Authors: Wang Yifan , Poldorn Preeyaporn , Wongnongwa Yutthana , Jungsuttiwong Siriporn , Chen Chong , Yu Le , Wang Zhuyi , Shi Liyi , Zhao Yin , Yuan Shuai 
Published: January 2022

AbstractOrganic cathode materials are plagued by their low cycle stability and poor electronic conductivity, even though they have attracted increasing attention in the context of lithium‐ion batteries (LIBs). Herein, a coordination polymer cobalt‐hexaazatriphenylene hexacarbonitrile (Co(HAT‐CN)) is prepared via a facile solvothermal method, which is composed of the redox‐active HAT‐CN linker and the Co(II) ion center. The fabricated material shows excellent structural stability and high conductivity. Moreover, graphene oxide (GO) is introduced as a substrate, and in‐situ loading of Co(HAT‐CN) on its surface shows enhanced cycling stability. For Co(HAT‐CN)/GO, a high specific capacity of 204 mAh g–1 can be retained even after 200 cycles at a current density of 40 mA g–1 in a voltage window of 1.2–3.9 V. Ex situ and in situ analyses are applied to probe the reversibility of the pyrazine redox‐active center during the cycling process and the lithium storage process. Density functional theory calculations reveal that the high conductivity of Co(HAT‐CN) should be ascribed to the narrow LUMO‐HOMO gap (0.61 eV), and strong binding of lithiated molecules.
Electrode Engineering in Halide Perovskite Electronics: Plenty of Room at the Interfaces
Authors: Lin Chun‐Ho , Hu Long , Guan Xinwei , Kim Jiyun , Huang Chien‐Yu , Huang Jing‐Kai , Singh Simrjit , Wu Tom 
Published: January 2022

AbstractContact engineering is a prerequisite for achieving desirable functionality and performance of semiconductor electronics, which is particularly critical for organic–inorganic hybrid halide perovskites due to their ionic nature and highly reactive interfaces. Although the interfaces between perovskites and charge‐transporting layers have attracted lots of attention due to the photovoltaic and light‐emitting diode applications, achieving reliable perovskite/electrode contacts for electronic devices, such as transistors and memories, remains as a bottleneck. Herein, a critical review on the elusive nature of perovskite/electrode interfaces with a focus on the interfacial electrochemistry effects is presented. The basic guidelines of electrode selection are given for establishing non‐polarized interfaces and optimal energy level alignment for perovskite materials. Furthermore, state‐of‐the‐art strategies on interface‐related electrode engineering are reviewed and discussed, which aim at achieving ohmic transport and eliminating hysteresis in perovskite devices. The role and multiple functionalities of self‐assembled monolayers that offer a unique approach toward improving perovskite/electrode contacts are also discussed. The insights on electrode engineering pave the way to advancing stable and reliable perovskite devices in diverse electronic applications.
MOF‐Derived Porous Dodecahedron rGO‐Co3O4 for Robust Pulse Generation
Authors: Li Xiaohui , An Mingqi , Li Gang , Han Yueheng , Guo Penglai , Chen Enci , Hu Jiyi , Song Zhuoying , Lu Hongbing , Lu Jiangbo 
Published: January 2022

AbstractAs a member of the porous crystalline material family, metal organic framework (MOF) materials have been widely used in the fields of photodetection, photovoltaic cells, nonlinear optical devices, supercapacitors, and biological imaging. However, few reports about robust pulsed laser based on MOF‐derived nanomaterials especially the one with unique structure have been reported till now. In this paper, porous dodecahedron rGO‐Co3O4 is synthesized by calcining the MOF template and systematically analyzed. Interestingly, the rGO‐Co3O4 is successfully prepared as a saturable absorber (SA) by using the optical deposition method and the modulation depth of the rGO‐Co3O4 SA is 8.38%. Through different dispersion management, robust pulses with 1.5 µm dissipative soliton (DS) in the frequency domain and square wave pulse (SWP) in the time domain can be obtained in the erbium‐doped fiber laser based on rGO‐Co3O4 SA. The 3‐dB bandwidth and pulse duration of the DS are 6.81 nm and 62.01 ps, respectively. The pulse tuning range of the SWP is 1.24 ns ≈ 19.14 ns. It is worth mentioning that the threshold of the SWP is 53.72 mW, and the mode‐locked laser can be self‐started at the pump power of 72.04 mW. The experimental results show that the porous dodecahedral rGO‐Co3O4 material derived from MOF can be used as an excellent nonlinear optical modulator, providing a new choice for material processing.
Battery‐Free and Wireless Technologies for Cardiovascular Implantable Medical Devices
Authors: Zhang Jungang , Das Rupam , Zhao Jinwei , Mirzai Nosrat , Mercer John , Heidari Hadi 
Published: January 2022

AbstractCardiovascular disease continues to be one of the dominant causes of global mortality. One effective treatment is to utilize cardiovascular implantable devices (cIMDs) with multi‐functional cell sensing and monitoring features that have the potential to manipulate cardiovascular hyperplasia disorders as well as provide therapy. However, batteries with a fixed capacity entail high‐risk surgeries for battery‐replacement, which causes health hazards and imposes significant costs to patients. This review accesses comprehensive power solutions for cIMDs, from conventional batteries to state‐of‐the‐art energy harvesters and wireless power transfer (WPT) schemes. In particular, WPT has great potential to eliminate the percutaneous wires and overcome frequent battery removal. Here, the fundamentals, power transfer efficiency, antenna design and miniaturization, and operating frequencies in various WPT schemes are presented. Moreover, the power loss attenuation and bio‐safety standard (specific absorption rate) for implants are also considered in WPT design envelope. In addition, wireless data transmission of implantable devices from external to internal milieu (and vice versa) along with different modulation and demodulation techniques are investigated. The last advanced power solutions for cIMDs in in‐vivo and in vitro research are illustrated throughout. Finally, specifications and future potential of WPT systems in cIMDs are highlighted.
Combining Vapor Phase Polymerization and Screen Printing for Printed Electronics on Flexible Substrates
Authors: Brooke Robert , Wijeratne Kosala , Hübscher Kathrin , Belaineh Dagmawi , Andersson Ersman Peter 
Published: January 2022

AbstractLarge area manufacturing of printed electronic components on ~A4‐sized substrates is demonstrated by the combination of screen printing and vapor phase polymerization (VPP) into poly(3,4‐ethylenedioxythiophene) (PEDOT). The oxidant layer required for the polymerization process is screen printed, and the resulting conductive polymer patterns are manufactured at high resolution (100 µm). Successful processing of several common oxidant species is demonstrated, and the thickness can be adjusted by altering the polymerization time. By comparing the polymer films of this work to a commercial PEDOT:PSS (PEDOT doped with poly(styrene sulfonate)) screen printing ink shows improved surface roughness (26 vs 69 nm), higher conductivity (500 vs 100 S cm–1) and better resolution (100 vs 200 µm). Organic electrochemical transistors, in which the transistor channel is polymerized into PEDOT through VPP, are also demonstrated to further emphasize on the applicability of this manufacturing approach. The resulting transistor devices are not only functional, they also show remarkable switching behavior with respect to ON current levels (–70 mA at –1 V), ON/OFF ratios (>105), switching times (tens of ms) and transconductance values (>100 mS) in standalone transistor devices, in addition to a high amplification factor (>30) upon integration into a screen printed inverter circuit.
Perfluorocarbon Nanoemulsions Enhance Therapeutic siRNA Delivery in the Treatment of Pulmonary Fibrosis
Authors: Ding Ling , Tang Siyuan , Tang Weimin , Mosley Deanna D. , Yu Ao , Sil Diptesh , Romanova Svetlana , Bailey Kristina L. , Knoell Daren L. , Wyatt Todd A. , Oupický David 
Published: January 2022

AbstractLocal pulmonary administration of therapeutic siRNA represents a promising approach to the treatment of lung fibrosis, which is currently hampered by inefficient delivery. Development of perfluorooctylbromide (PFOB) nanoemulsions as a way of improving the efficiency of pulmonary polycation‐based delivery of siRNA is reported. The results show that the polycation/siRNA/PFOB nanoemulsions are capable of efficiently silencing the expression of STAT3 and inhibiting chemokine receptor CXCR4—two validated targets in pulmonary fibrosis. Both in vitro and in vivo results demonstrate that the nanoemulsions improve mucus penetration and facilitate effective cellular delivery of siRNA. Pulmonary treatment of mice with bleomycin‐induced pulmonary fibrosis shows strong inhibition of the progression of the disease and significant prolongation of animal survival. Overall, the study points to a promising local treatment strategy of pulmonary fibrosis.