bluuebunny/crossref_metadata_2025 huggingface dataset:
The Relationship of Characteristics Individual and Personal Hygiene with Symptoms of Dermatitis Contact on Scavengers
Authors: Rosdiana Rosdiana , Ekowati Januariana Neni , Sarah Fatia
Published: December 2023

Skin disease is a condition that affects the body's surface and has a number of causes. The most prevalent infectious illnesses that afflict people of all ages are skin conditions. The majority of skin infection treatments take a while to start working. The goal of this study was to ascertain how scavengers at the Medan City Waste Landfill's personal hygiene habits and contact dermatitis symptoms related to one another. Approach: This study uses a cross-sectional analytic survey design as its methodology. The population of this study consisted of 72 respondents who served as research samples. They were all scavengers in Environment VII of the Waterfall Village. The chi-square statistical test was utilized in the univariate and bivariate analyses. The Findings: Scavengers' symptoms of contact dermatitis were related to age (p = 0.019), education (p = 0.021), length of labor (p = 0.007), and personal hygiene (p = 0.000). The study's findings suggest that scavengers in the Medan City Waste Landfill may have contact dermatitis symptoms in relation to their age, education, length of employment, and personal hygiene. It is planned that TPA Falls would offer health education about skin conditions, including dermatitis, so that scavengers may avoid contracting these illnesses by practicing good personal hygiene after work, including as cleaning their hands, feet, and taking a shower.
Students Perception on Lecture’s Implementation of Learning Teaching Midwifery
Authors: Lestari Dwi , Tarigan Sibero Jitasari , Yuniati Yuniati
Published: December 2023

Implementation of learning teaching with test results of askeb I in DIII midwifery. The study design used in this research WA’s analytic survey with cross sectional approach. The population in this study were all second level students of fourth semester at the Academy of Obstetrics totaling 40 students, with a sampling technique using the total population is the entire population sampled as many as 40 students at the Academy of Midwifery. From the research results with a confidence level of 95% with the title student’s perception on lecture’s implementation of learning teaching with  test results of askeb I obtained from 40 respondents there were 16 students who assumes the implementation of good learning as many as 16 respondents (40.0%), assumes the implementation of learning that is enough as many as 13 respondents (32.5%) and less assuming implementation of learning as  much as 11 respondents (27.5%) with a statistical test of chi-square p value = 0.012 <? = 0.05 means there is relationship of students perception on lecture’s implementation of learning teaching with  test results of askeb I in DIII midwifery. In this study, researchers concluded that there is relationship of student’s perception on lecture’s implementation of learning teaching with test results of askeb I in DIII midwifery. Advice from researchers to the respondents in order to further improve the quality of learning that is better for the future.
An Overview of Patient Safety Culture with the Ahrq Model at RSUD Dr. R.M. Djoelham City of Binjai
Authors: Susanti Eva , Efendy Ismail , Maryanti Endang
Published: December 2023

In 2020, access to proper sanitation at the Krueng Sabee Health Center, latrine ownership is 36.36%, this number still has not reached the target of healthy latrine coverage, namely 100%, of the 11 villages in the working area of ??the Krueng Sabee Health Center, the number of villages with healthy latrine access is known, namely 4 villages (36.36%) and 7 villages (63.64%) do not yet have access to healthy latrines. Combination research method (mixed methods research) sampling technique Accidental sampling 95 samples using quantitative methods and 9 informants using qualitative methods. Quantitative data was analyzed univariate, bivariate and multivariate through logistic regression tests. Qualitative data through data reduction, presentation and drawing conclusions. Quantitative research results: Logistic regression test results: education level OR= 3,452, income level OR= 80,695, knowledge OR= 4,717, attitude OR= 43,982 and social culture OR= 0.647, income level is the dominant independent variable that influences family latrine ownership with the OR value = 80,695. The results of the qualitative analysis show that the majority of families do not have toilets, due to low income levels. Conclusion: level of education, attitudes, social culture towards ownership. Interview results play an active role in providing information, counseling and explaining the importance of family latrine ownership. Village officials who facilitate support for latrine ownership allocate data on assistance for latrine construction in limited quantities. It is recommended that the Health Service evaluate and integrate related programs in increasing latrine coverage in its working areas.
The Effect of Implementing Patient Safety on the Quality of Service in the Inpatient Room of Kindergarten Hospital. II Putri Hijau Medan in 2021
Authors: Nadapdap Marshall Jeremia , Fitriani Arifah Devi
Published: December 2023

Quality service quality with a guarantee of high patient safety produces a good hospital image in the eyes of patients as hospital consumers. The aim of the research was to determine the effect of implementing patient safety on the quality of service in the Inpatient Room at Kindergarten Hospital. II Putri Hijau Medan.Analytical survey research design with a cross sectional approach. The population of all inpatients was 270 people and the accidental sampling sample was 73 people. Primary data collection methods, secondary and tertiary data. The data analysis used is the binary logistic regression test.The results of the study showed that identifying patients had a sig-p value of 0.004 < 0.05, communication sig-p 1,000 > 0.05, drug safety sig-p 0.029 < 0.05, risk of wrong location, wrong patient and surgery sig-p 0.598 > 0.05, risk of infection sig-p 0.010 < 0.05 and risk of patient falls sig-p 0.025 < 0.05.The conclusion in this study is that there is an influence of patient identification, drug safety, risk of infection and risk of patient falls on the quality of service, while communication and the risk of wrong location, wrong patient and surgery have no influence on the quality of service. It is hoped that the results of this research can become a reference for the Tk Hospital. II Putri Hijau Medan to better understand the importance of patient safety management in accordance with Ministry of Health regulations in order to maximize the quality of health services achieved.
Relationship between Pulmonary TB Patient Behavior and Family Support with Treatment Adherence at the RSU Pulmonary Polyclinic
Authors: Nadapdap Faskanita Maristella , Syahputra Chairul
Published: December 2023

Tuberculosis (TB) is a global health problem with an estimated 10.4 million new TB cases worldwide. Based on an initial survey of 10 TB patients, it was found that 6 patients were not compliant with treatment, while 4 other patients were compliant with treatment. The aim of this research was to determine the behavioral factors of pulmonary TB patients with patient treatment compliance at the RSU Pulmonary Polyclinic. Mother Thamrin Medan. The research design used in this research is an analytical survey with a cross sectional approach. The population in this study was all 58 patients and the samples were taken by a total sampling method of 58 people. Data collection methods are primary data, secondary and tertiary data. The data analysis used is the binary logistic regression test. The results showed that age had a sig-p value of 0.646> 0.05, education sig-p 0.032< 0.05, employment sig-p 1.0> 0.05, knowledge sig-p 0.012< 0.05, attitude sig-p 0.036 < 0.05, sig-p action 0.003< 0.05 and family support sig-p 0.048< 0.05.The conclusion in this study is that there is an influence of education, knowledge, attitudes, actions and family support on patient treatment compliance, while age and employment have no influence on patient treatment compliance at the RSU Pulmonary Polyclinic. Bunda Thamrin Medan. It is hoped that the results of this research can be used as information material for research sites by monitoring and teaching patients to recognize common complaints and symptoms of TB disease and encouraging patients to immediately report their condition to health workers.
The Relationship Between Eating Patterns With Anemia Status In Adolescent Girls At Mtsn 1 Deli Serdang
Authors: Mahdiah  , Alvisyahrani Tazkia , Friscillia Sonya
Published: December 2023

Anemia is a condition where the number of red blood cells or hemoglobin (Hb) levels in the blood is lower than normal according to age and gender. To find out the relationship between eating patterns and to find out the relationship between breakfast and anemia status in young women. The design method in this research isCross Sectional. The population is all young women at MTSN 1 Deli Serdang. The sampling in this research was purposive sampling. Data collection was carried out using interviewssemi quantitative food frequency questionnaire as a research instrument. Data processing through editing, coding, data entry, tabulating. Using the Chi Square test. The results of the study showed that 34.3% of teenagers had a variety of eating types, and 89.3% of teenagers with non-diverse eating types. Adolescents with a frequency of eating >3 times/day were 37.5%. The frequency of eating and eating <3 times/day is 90.4%. The number of teenagers who eat well is 35.7%, and the number of teenagers who eat poorly is 14.3%. Types of eating breakfast in the diverse category were 50.8%, and types of eating were not diverse as much as 49.2%. The frequency of eating in the category once a day was 50.7%, and the frequency of eating in the category <3 times a week was 49.2%. The number of meals in the good category was 50.8%, the sufficient category was 20.6% and the number of meals in the poor category was 28.6%. Anemia status in the anemia category was 23.8%, and anemia status in the non-anemia category was 76.2%. There is a relationship between eating patterns and breakfast (type, frequency, amount) with anemia status at MTSN 1 Deli Serdang.
Exploring the Connection Between Facial Skin Cleansing Habits and Acne Vulgaris: A Comprehensive Review
Authors: Sari Anna Rahmania , Ramadhanty Prajnya Kamila , Anggraeni Natasha , Destra Edwin , Firmansyah Yohanes
Published: December 2023

Acne Vulgaris (AV) is a chronic inflammatory condition affecting the pilosebaceous follicles, characterized by multifactorial causative factors and clinical manifestations such as cysts, pustules, comedones, nodules, and papules. While AV is not life-threatening, it can significantly impact an individual's well-being by reducing self-esteem, increasing anxiety, and affecting their economic and social life. This paper conducts a comprehensive analysis of existing literature, synthesizing information from multiple reputable sources. The main objective of this review is to explore the implementation of treatments related to the relationship between skin cleansing habits and Acne Vulgaris. The connection between facial skin hygiene and the occurrence of Acne Vulgaris is of significant interest. One key aspect is the potential reduction in Acne Vulgaris when individuals maintain good facial skin hygiene practices. When facial skin is cleaned appropriately, it hinders the accumulation of excess sebum, one of the contributing factors to the development of Acne Vulgaris. It is essential to acknowledge the variability in research outcomes. While certain studies propose that excessive facial cleansing may worsen Acne Vulgaris due to potential skin irritation and glandular complications, others recommend a minimum of twice-daily facial cleansing with a gentle cleanser to maintain skin well-being. The optimal cleansing frequency may depend on individual skin conditions and the presence of comedonal lesions.
Changing the Space in the Traditional Kerinci Traditional House
Authors: Fantoni
Published: December 2023

This study aims to analyze changes in space in traditional Kerinci traditional houses. Research is research. In this case, the method used is a rationalistic method where this method seeks to explain the actual situation in the field and then tested with existing theories. The method chosen must be appropriate to achieve the research objectives, this chapter also examines in more detail about the research carried out such as research materials, research tools, the course of research, and difficulties encountered during research. The results  of research findings that have been carried out on changes in the space in umah lahiek in Mukai Mukai Mudik Village, we can conclude that the changes that occur in the inner space are the addition of sleeping space both in the outer room (umah lua) and in the inner room (umah inside). The addition of this sleeping space has no effect on the shape of the outer floor plan of the umah lahiek unit, but only changes in the pattern of the inner room.
At forbedre i nutid
Authors: Ebsen Frank
Published: December 2023

Dette arbejdspapir handler om redskaber, som kan sikre, at børn og unge forbedrer deres sociale situation og trivsel, når de indgår i en social indsats. Rapportens mål er at se på hvilke krav, der kan stilles til redskaber, der informerer både børn/unge og socialrådgivere (sagsbehandlere, myndighedsrådgivere) om udviklingen, mens indsatsen foregår.

Rapporten er disponeret så der efter en afgrænsning af analysen indenfor socialt arbejde med udsatte børn og unge, følger en præsentation af et review over engelsksprogede bidrag, som suppleres med kortlægninger af dansk forskning på området. Dernæst kommer et afsnit om digitaliserings betydning. Der afsluttes med en opsummering af hvilke krav, der bør stilles til det ønskede redskab.
National Strategic Plan for the prevention and control of non-communicable diseases in South Africa
Authors: Basu D
Published: December 2023

National Strategic Plan for the prevention and control of non-communicable diseases in South Africa
Scientists have a powerful role in determining South African government health policy: Unpacking how and why different scientists may suggest very different policies
Authors: Barr G D I , Scott L D
Published: December 2023

Appropriate public health policy, and the associated budgetary decisions, are extremely important to society, and rely on expert scientific input. Scientists who provide this input, typically medical researchers alongside statisticians specialising in medical data, are required to produce objective, transparent analysis that will aid the politicians who make these crucial policy decisions. In this article we give examples of how scientists who publish work in the area of public health can overlook critical aspects of data analysis and arrive at inappropriate conclusions not supported by the data. We believe that all data used in such studies should be freely available, and suggest principles that scientists and journals should adhere to in order to ensure that the statistical models used on the data and the conclusions reached on the basis of the statistical analysis have been subjected to intensive interrogation by as large a pool of scientists as possible.
Créance et fiction. Essor du discours économique et développement des formes narratives au Moyen Âge
Authors: Gingras Francis
Published: December 2023

Le développement de la forme romanesque entre le xiie et la fin du xiiie siècle correspond à la période que les historiens de l’économie appellent la « révolution commerciale » (950-1350). L’espace occupé par la fiction dans l’essor de l’économie monétaire ne résulte pas seulement de cette coïncidence chronologique. Les nouvelles valeurs de cette économie plus monétarisée reposent sur la confiance accordée à une fiction qui s’incarne dans l’opposition entre monnaie réelle (le moyen de paiement) et monnaie imaginaire (la monnaie de compte). Qu’il s’agisse de formes brèves (le fabliau), de l’excroissance d’une fable animalière ou allégorique (le Roman de Renart), ou d’un roman d’amour et de chevalerie, comme ceux de Chrétien de Troyes, il s’agit toujours de fiction. La fiction médiévale se rapproche ainsi d’une monnaie fiduciaire qui repose sur la confiance de l’acheteur envers l’émetteur, ici la confiance de l’auditeur-lecteur à l’égard du romancier.
Espacios compartidos: prácticas artísticas urbanas en entornos formativos
Authors: Font-Company Enric
Published: December 2023

En contextos educativos, se considera que el uso de actividades didácticas que conecten al estudiantado con su día a día aumenta su motivación y beneficia su experiencia formativa. Con la voluntad de propiciar situaciones de aprendizaje estimulantes, el ponente ha utilizado prácticas artísticas urbanas en educación superior. Aporta diferentes argumentos: por la proximidad al alumnado, permiten una conexión con procesos artísticos sin barreras ni prejuicios culturales; a la vez, favorecen el desarrollo de una actividad comunicativa a través de la cultura visual del estudiantado; y, además, se desarrollan en un espacio compartido, propiciando debates sobre un uso responsable y sostenible de las intervenciones. Empezando con unas breves reflexiones sobre la idea de espacio compartido y arte urbano, se valoran las experiencias realizadas en el grado de diseño de Eina, Centro Universitario de Arte y Diseño de Barcelona, y en la Facultad de Educación de la Universidad de Barcelona (UB); aquí se han formalizado en un proyecto de innovación docente: Integración de Prácticas Artísticas de Intervención Mural en Entornos Educativos (UB). A través de la inmersión en una experiencia de creación plástica, se hace partícipe al estudiante de su proceso de aprendizaje a la vez que adquiere una formación adaptable a diferentes situaciones socioeducativas. Mediante la revisión de los objetivos, se señalan diferentes puntos de interés a través de las intervenciones realizadas.
La mirada como constructora de realidades: explorando lo ideológico, político y cultural en una monografía reflexiva
Authors: Castro Elke
Published: December 2023

Reseña de
Escaño, C. (2022). Pedagogías de la mirada. Reflexiones desde la postdigitalidad. Madrid:Editorial: Dykinson, S.L.
Los retratos fotográficos de Xavier Mollà. Diálogos cruzados entre imágenes y palabras
Authors: De la Calle Román
Published: December 2023

Reseña 
Mollà, X. (2023). 720 retrats. Edit: XMR
Microglia facilitate and stabilize the response to general anesthesia
Authors: He Yang , Liu Taohui , He Quansheng , Ke Wei , Li Xiaoyu , Du Jinjin , Deng Suixin , Shu Zhenfeng , Wu Jialin , Yang Baozhi , Wang Yuqing , Mao Ying , Rao Yanxia , Shu Yousheng , Peng Bo
Published: December 2023

General anesthesia leads to a loss of consciousness and an unarousable state in patients. Although general anesthetics are widely used in clinical practice, their underlying mechanisms remain elusive. The potential involvement of nonneuronal cells is unknown. Microglia are important immune cells in the central nervous system (CNS) that play critical roles in CNS function and dysfunction. We unintentionally observed delayed anesthesia induction and early anesthesia emergence in microglia-depleted mice. We found that microglial depletion differentially regulates neuronal activities by suppressing the neuronal network of anesthesia-activated brain regions and activating emergence-activated brain regions. Thus, microglia facilitate and stabilize the anesthesia status. This influence is not mediated by dendritic spine plasticity. Instead, it relies on the activation of microglial P2Y12 and subsequent calcium influx, which facilitates the general anesthesia response. Together, we elucidate the regulatory role of microglia in general anesthesia, extending our knowledge of how nonneuronal cells modulate neuronal activities.
Dopamine lesions alter the striatal encoding of single-limb gait
Authors: Yang Long , Singla Deepak , Wu Alexander K , Cross Katy A , Masmanidis Sotiris C
Published: December 2023

The striatum serves an important role in motor control, and neurons in this area encode the body’s initiation, cessation, and speed of locomotion. However, it remains unclear whether the same neurons also encode the step-by-step rhythmic motor patterns of individual limbs that characterize gait. By combining high-speed video tracking, electrophysiology, and optogenetic tagging, we found that a sizable population of both D1 and D2 receptor expressing medium spiny projection neurons (MSNs) were phase-locked to the gait cycle of individual limbs in mice. Healthy animals showed balanced limb phase-locking between D1 and D2 MSNs, while dopamine depletion led to stronger phase-locking in D2 MSNs. These findings indicate that striatal neurons represent gait on a single-limb and step basis, and suggest that elevated limb phase-locking of D2 MSNs may underlie some of the gait impairments associated with dopamine loss.
Impact of livestock grazing management on carbon stocks: a case study in sparse elm woodlands of semi-arid lands
Authors: Tang Yi
Published: December 2023

Livestock grazing is a widespread practice in human activities worldwide. However, the effects of livestock grazing management on vegetation carbon storage have not been thoroughly evaluated. In this study, we used the system dynamic approach to simulate the effects of different livestock grazing management strategies on carbon stock in sparse elm woodlands. The livestock grazing management strategies included rotational grazing every 5 years (RG5), prohibited grazing (PG), seasonal prohibited grazing (SPG), and continuous grazing (CG). We evaluated the carbon sequestration rate in vegetation using logistical models. The results showed that the carbon stock of elm trees in sparse woodlands was 5–15 M g ha−1. The values of the carbon sequestration rate were 0.15, 0.13, 0.13, and 0.09 Mg C ha−1 year−1 in RG5, PG, CG, and SPG management, respectively. This indicates that rotational grazing management might be the optimal choice for improving vegetation carbon accumulation in sparse woodlands. This study contributes to decision-making on how to choose livestock grazing management to maintain higher carbon storage.
Cincuenta años de complicidad y complacencia
Authors: Lazzara Michael J.
Published: December 2023

En una columna publicada en Palabra Pública ad-portas de la conmemoración de los cincuenta años del golpe cívico-militar que instaló a la dictadura de Pinochet, Faride Zerán, observó que hoy todavía existe en Chile –a pesar de todo lo logrado en memoria, verdad y justicia– un sector pinochetista importante con presencia y poder. Zerán hace referencia a un estudio de opinión titulado Chile a la sombra de Pinochet, publicado en 2023 por la consultora Cerc-Mori, en el que se destaca que TODAVÍA “el 36% de la población –20 puntos más que hace 10 años– cre[e] que las Fuerzas Armadas ‘tenían razón’ en dar el golpe de estado”. Faride cita las palabras de Marta Lagos, la directora del Mori, quien comenta que “el estudio revelaba ‘que no existe en occidente otro dictador que haya sobrevivido el paso del tiempo como lo ha hecho Augusto Pinochet’”. Este hecho está comprobado por varios episodios en el tiempo que sirven de evidencia. Solo hay que pensar en el desfile de cuerpos que pasaban por el ataúd del dictador cuando falleció en 2006, en el homenaje a Krassnoff en el Club Providencia en 2011 o en el homenaje a Pinochet que se organizó en el Teatro Caupolicán en 2012, entre muchos otros ejemplos. Otras columnas de prensa y reflexiones que han aparecido en estos meses han ido señalando la presencia en Chile de una corriente negacionista tóxica frente a la cual hay que dar la batalla y defender la memoria.
The Moderating Role of Checks- and-Balances and Monitoring Mechanisms in the Degree of Strategic Aggressiveness - A Case Study of Chinese Listed Software and IT Services Industry
Authors: Hsiao Chih-Yi , Lin Xiao-Duo
Published: December 2023

Due to several cases of bankruptcy caused by uncontrolled corporate expansion due to rapid economic development in China in recent years, this paper takes listed companies in China's software and IT service industry as a research sample from 2018-2021 and uses PROCESS V3.5 developed by [1] to explore the moderating effects of checks-and-balances and supervisory mechanisms on the degree of strategic aggressiveness. Among the check-and-balance mechanisms include the degree of separation of powers, the degree of equity checks-and-balances, the ratio of independent directors, and duality. Based on the empirical results, two conclusions of this paper are summarized: 1. The degree of separation of powers has a positive moderating effect on the degree of strategic activism and investment efficiency, especially when the degree of separation of powers is at a low to medium level. 2. When the general manager and the chairman of the board of directors are the same person, there is a negative moderating effect between the degree of strategic aggressiveness and investment efficiency. The higher the degree of strategic aggressiveness, the investment efficiency will be significantly reduced if the chairman and general manager are combined into one person. Based on the above research results, this paper puts forward corresponding suggestions for enterprises.
Percutaneous Coronary Intervention–Capable Facility Openings and Acute Myocardial Infarction Outcomes by Patient Race and Community Segregation
Authors: Hsia Renee Y. , Shen Yu-Chu
Published: December 2023

This cohort study investigates differential changes in patient outcomes after percutaneous coronary intervention–capable facility openings by patient race and community segregation.
Hybrid Pore Formation in Copper Spheres by Gas Entrapment and Oxide Reduction
Authors: Jones Braden , Tse Lop Kun Julian , Patterson Emma , Allapatt Noel , Atwater Mark
Published: December 2023

Solid‐state methods for producing porous metals vary greatly in their approaches and outcomes, and they often result in distinctly different pore sizes and/or characteristics. By combining methods in a hybrid process, it is possible that unique porous structures can be made that are simpler to produce, have improved functional properties, or are otherwise superior to any single approach. For the first time, a combination of gas entrapment and oxide reduction to produce microscale porosity in millimeter‐scale copper spheres created by planetary milling is reported. The milling process entraps Ar in micron to submicron pores within the spheres, which are comprised of a Cu 2 mol% CuO metal matrix composite. Upon heating at 800 °C in an inert atmosphere, the individual spheres expand and form ≈29% closed porosity with an average pore size of 1.5 μm. When those spheres are then reheated to 600 °C in a reducing atmosphere, the porosity is converted to being almost entirely open with an average size of 2.3 μm. In addition to the unique nature of the porosity, the processing of the spheres is unusual in that it is completed after only 90 min of milling.
Design and Compression Behavior Exploration of Skeletal and Sheet Triply Periodic Minimal Surface Structures
Authors: Li Yadong , Liu Bin , Li Zhonghua , Kuai Zezhou , Du Wenhua , Zhang Qifei , Suo Chao , Bi Jiawei , Zhang Pengfei
Published: December 2023

Six triply periodic minimal surface (TPMS) structures are designed, and their static compression behavior is evaluated in this research. TPMS structures are new type of porous structures super material, which can provide better mechanical properties than the traditional lattice structures in the engineering manufacturing field can. Six TPMS structures (Skeletal Diamond, Skeletal Gyroid, Skeletal I‐graph‐wrapped package (IWP), Sheet Diamond, Sheet Gyroid, and Sheet IWP) are actively designed by parameterization, and the relationship between parameter C and the structures’ relative density is obtained using the interpolation method. Six TPMS structures with different relative densities (10%, 20%, 30%, and 40%) are prepared by selective laser melting using Ti6Al4V powder. Static compression tests are conducted to evaluate the compression performance of these six structures. The results show that at the same relative density, sheet structures have better mechanical properties than skeletal structures. A deformation analysis of the compression process reveals that skeletal structures are dominated by layered fractures and sheet structures by overall fractures. An analysis of the overall experimental results further reveals that the Sheet Diamond structure has the best mechanical properties among the six structures, and the Skeletal Gyroid structure has the best mechanical properties among the three skeletal structures.
Ultrahigh Energy Storage in Tungsten Bronze Dielectric Ceramics Through a Weakly Coupled Relaxor Design
Authors: Gao Yangfei , Qiao Wenjing , Lou Xiaojie , Song Zizheng , Zhu Xiaopei , He Liqiang , Yang Bian , Hu Yanhua , Shao Jinyou , Wang Danyang , Chen Zibin , Zhang Shujun
Published: December 2023

Dielectric energy‐storage capacitors, known for their ultrafast discharge time and high‐power density, find widespread applications in high‐power pulse devices. However, ceramics featuring a tetragonal tungsten bronze structure (TTBs) have received limited attention due to their lower energy‐storage capacity compared to perovskite counterparts. Herein, a TTBs relaxor ferroelectric ceramic based on the Gd0.03Ba0.47Sr0.485‐1.5xSmxNb2O6 composition, exhibiting an ultrahigh recoverable energy density of 9 J cm−3 and an efficiency of 84% under an electric field of 660 kV cm−1 is reported. Notably, the energy storage performance of this ceramic shows remarkable stability against frequency, temperature, and cycling electric field. The introduction of Sm3+ doping is found to create weakly coupled polar nanoregions in the Gd0.03Ba0.47Sr0.485Nb2O6 ceramic. Structural characterizations reveal that the incommensurability parameter increases with higher Sm3+ content, indicative of a highly disordered A‐site structure. Simultaneously, the breakdown strength is also enhanced by raising the conduction activation energy, widening the bandgap, and reducing the electric field‐induced strain. This work presents a significant improvement on the energy storage capabilities of TTBs‐based capacitors, expanding the material choice for high‐power pulse device applications.
Designed Polymer Ligands for Perovskite Quantum Dots and Their Block Copolymer Nanocomposites
Authors: Tsai Cheng‐Han , Shen Naifu , Mi Chenjia , Bu Jinyu , Dong Yitong , Xu Weinan
Published: December 2023

Perovskite quantum dots (QDs) have efficient optical absorption and emission in the visible range, and show a strong quantum confinement effect and high external quantum efficiency. They have been at the forefront of next‐generation photovoltaics and optoelectronics applications. However, two major challenges associated with perovskites and their nanomaterials are poor stability (such as against moisture and polar solvents), as well as the lack of efficient nanopatterning methods. In this work, a promising approach is provided to address both of those major challenges by molecular engineering and integration of QDs with block copolymers (BCP). The BCP thermoplastic elastomers not only substantially improve the stability of perovskite QDs by encapsulating them in a highly stable and soft matrix, but also enable molecular‐level control of the alignment and assembly of perovskite QDs in the microphase‐separated BCP matrix. It is demonstrated that designing and synthesis of compatible polymer ligands for perovskite QDs is key to enabling their selective and strong interaction with the BCP matrix. The structure and molecular weight of the BCP also play an important role in the interfacial structure and optical properties of the QDs‐BCP nanocomposites. Such soft and flexible optical nanocomposites have potential applications in flexible optoelectronics, optical storage, and displays.
Diversification of NH‐Aryl Sulfoximines through Iridium‐Catalyzed ortho‐ and meta‐Selective C−H Borylation
Authors: van Bonn Pit , Soerensen Sven , Schmitz Nicolas , Bolm Carsten
Published: December 2023

Herein, the selective ortho‐ and meta‐C−H bond borylation of NH‐aryl sulfoximines is reported. Regioselectivity is achieved by the choice of commercially available ligands giving fast excess to valuable borylated aryl sulfoximine building blogs. The utility of the borylated products is demonstrated for the formation of C−O, C−C, C−N, C−D, and C−I bonds.
Van Der Waals Semiconductor Based Omnidirectional Bifacial Transparent Photovoltaic for Visual‐Speech Photocommunication
Authors: Kumar Naveen , Nguyen Thanh Tai , Lee Junsik , Patel Malkeshkumar , Bhatnagar Priyanka , Lee Kibum , Kim Joondong
Published: December 2023

Omnidirectional photosensing is crucial in optoelectronic devices, enabling a wide field of view (wFoV) and leveraging potential applications for the Internet of Things in sensors, light fidelity, and photocommunication. The wFoV helps overcome the limitations of line‐of‐sight communication, and transparent photodetection becomes highly desirable as it enables the capture of optical information from various angles. Therefore, developing a photoelectric device with a 360° wFoV, ultra sensitivity to photons, power generation, and transparency is of utmost importance. This study utilizes a heterojunction of van der Waals SnS with Ga2O3 to fabricate a transparent photovoltaic (TPV) device showing a 360° wFoV with bifacial onsite power production. SnS/Ga2O3 heterojunction preparation consists of magnetron sputtering and is free from nanopatterning/nanostructuring to achieve the desired wFoV window device. The device exhibits a high average visible transmittance of 56%, generates identical power from bifacial illumination, and broadband fast photoresponse. Careful analysis of the device shows an ultra‐sensitive photoinduced defect‐modulated heterojunction and photocapacitance, revealed by the impedance spectroscopy, suggesting photon‐flux driven charge diffusion. Leveraging the wFoV operation, the TPV embedded visual and speech photocommunication prototype demonstrated, aiming to help visually and auditory impaired individuals, promising an environmental‐friendly sustainable future.
Robust Glycoproteomics Platform Reveals a Tetra‐Antennary Site‐Specific Glycan Capping with Sialyl‐Lewis Antigen for Early Detection of Gastric Cancer
Authors: Liu Luyao , Liu Lei , Wang Yan , Fang Zheng , Bian Yangyang , Zhang Wenyao , Wang Zhongyu , Gao Xianchun , Zhao Changrui , Tian Miaomiao , Liu Xiaoyan , Qin Hongqiang , Guo Zhimou , Liang Xinmiao , Dong Mingming , Nie Yongzhan , Ye Mingliang
Published: December 2023

The lack of efficient biomarkers for the early detection of gastric cancer (GC) contributes to its high mortality rate, so it is crucial to discover novel diagnostic targets for GC. Recent studies have implicated the potential of site‐specific glycans in cancer diagnosis, yet it is challenging to perform highly reproducible and sensitive glycoproteomics analysis on large cohorts of samples. Here, a highly robust N‐glycoproteomics (HRN) platform comprising an automated enrichment method, a stable microflow LC‐MS/MS system, and a sensitive glycopeptide‐spectra‐deciphering tool is developed for large‐scale quantitative N‐glycoproteome analysis. The HRN platform is applied to analyze serum N‐glycoproteomes of 278 subjects from three cohorts to investigate glycosylation changes of GC. It identifies over 20 000 unique site‐specific glycans from discovery and validation cohorts, and determines four site‐specific glycans as biomarker candidates. One candidate has branched tetra‐antennary structure capping with sialyl‐Lewis antigen, and it significantly outperforms serum CEA with AUC values > 0.89 compared against < 0.67 for diagnosing early‐stage GC. The four‐marker panel can provide improved diagnostic performances. Besides, discrimination powers of four candidates are also testified with a verification cohort using PRM strategy. This findings highlight the value of this strong tool in analyzing aberrant site‐specific glycans for cancer detection.
Speciation of Transition Metal Dissolution in Electrolyte from Common Cathode Materials
Authors: Rynearson Leah , Antolini Cali , Jayawardana Chamithri , Yeddala Munaiah , Hayes Dugan , Lucht Brett L.
Published: December 2023

Significant capacity loss has been observed across extended cycling of lithium‐ion batteries cycled to high potential. One of the sources of capacity fade is transition metal dissolution from the cathode active material, ion migration through the electrolyte, and deposition on the solid‐electrolyte interphase on the anode. While much research has been conducted on the oxidation state of the transition metal in the cathode active material or deposited on the anode, there have been limited investigations of the oxidation state of the transition metal ions dissolved in the electrolyte. In this work, X‐ray absorption spectroscopy has been performed on electrolytes extracted from cells built with four different cathode active materials (LiMn2O4 (LMO), LiNi0.5Mn1.5O4 (LNMO), LiNi0.8Mn0.1Co0.1O2 (NMC811), and (x Li2MnO3*(1‐x) LiNiaMnbCocO2, with a+b+c=1) (LMRNMC)) that were cycled at either high or standard potentials to determine the oxidation state of Mn and Ni in solution. Inductively coupled plasma‐mass spectrometry has been performed on the anodes from these cells to determine the concentration of deposited transition metal ions. While transition metal ions were found dissolved in all electrolytes, the oxidation state(s) of Mn and Ni were determined to be dependent on the cathode material and independent of cycling potential.
The synthesis of a secondary branched epoxy‐modified silicone resin and its application at low temperature
Authors: Pan Zhaoqun , Lin Liangwei , Luo Wenhui
Published: December 2023

To enhance the fracture toughness of epoxy resin at low temperature, a secondary branched epoxy‐terminated silicone resin (ESR‐6) was synthesized and incorporated into bisphenol A epoxy resin at different contents. The structure of ESR‐6 was characterized by Fourier transform infrared spectroscopy and nuclear magnetic resonance (1H NMR), and the fracture surface of the composites was observed by scanning electron microscope (SEM) and atomic force microscopy. At room temperature and − 70°C, the maximum values of elongation at break were 15.78% and 12.55% with 10 wt% ESR. Compared with those of neat epoxy resin, the values of elongation at break of the composite were increased by 50.86% and 36.12%. The results of dynamic mechanical analysis also showed that the toughness of the modified resin had been improved. The SEM images of the fracture surfaces suggested that the fracture mode of the modified resin changed from brittle one to plastic one because of the addition of ESR‐6, which further confirmed the toughening effect of ESR‐6. These research results may provide a new strategy for enhancing the low‐temperature toughness of epoxy resins.
A Memristive Oscillator
Authors: Oshima Yugo , Takenobu Taishi , Pu Jiang , Ishiguro Keisuke , Kato Reizo , Yamamoto Hiroshi M. , Kusamoto Tetsuro
Published: December 2023

Memristors, or more generally “memristive systems,” are nonlinear electric components that change their resistance depending on a set of state variables. Meanwhile, negative differential resistance (NDR) is an uncommon electrical property that occurs in a few nonlinear electric components. Such a nonlinear property is now widely used in amplifiers and oscillators. It finds that one of the bilayer‐type nickel‐dithiolene complexes shows nonlinear transport with the NDR property and self‐oscillates under a bias current by simply adding a capacitor in parallel. Surprisingly, the Lissajous figure of this molecular material shows a “pinched hysteresis loop” typical of a memristor, and an inductive reactance emerges when a bias current or voltage is applied to the sample. Herein, a new type of oscillator that uses the NDR and hidden inductive properties of a memristive system is reported. The findings suggest that a memristive system can mimic other passive elements, such as an inductor, and can oscillate itself without having them in the circuit. The oscillation mechanism is straightforward and applicable to a wide variety of memristive materials, including resistors with large negative temperature coefficients, discharge tubes, and even nerve cells in the living body.
A short review of the pulsar magnetic inclination angles (II)
Authors: Li Biao‐Peng , Ma Wen‐Qi , Gao Zhi‐Fu
Published: December 2023

The pulsar magnetic inclination angle is a key parameter for pulsar physics. It influences the observable properties of pulsars, such as the pulse beam width, braking index, polarization, and emission geometry. In this study, we give a brief overview of the current state of knowledge and research on this parameter and its implications for the internal physics of pulsars. We use the observed pulsar data of magnetic inclination angle and braking index to constrain the star's number of precession cycles, , which reflects the interaction between superfluid neutrons and other particles inside a neutron star (NS). We apply the method proposed by Cheng et al. (Cheng, Q., Zhang, S. N., Zheng, X. P., & Fan, X. L., 2019, Phys. Rev. D, 99, 083011) to analyze the data of PSR J2013 + 3845 and obtain the constraints for ranging from to . And further analysis suggests that the internal magnetic field structure of PSR J2013 + 3845 is likely dominated by toroidal components. This study may help us understand the process of internal viscous dissipation and the related evolution of the inclination angles of pulsars, and may have important implications for the study of continuous gravitational wave emissions from NS.
Improving the capturing ability of swirl‐based microfluidic chip by introducing baffle wall
Authors: Dang Yanping , Zhang Qin , Ou Zhiming , Hu Shuai
Published: December 2023

Microfluidics technology is promising in developing microparticle manipulation technology due to its nondestructive control and notable adaptability. The manipulation of microparticle based on swirling stagnation point is one of the feasible microfluidics biotechnologies. Aiming to improve the regulation and control of microparticle, baffle wall is introduced into the 2‐microchannel flow field. The theory of wall attachment jet is employed to elucidate the effect of baffle wall. Subsequently, finite volume method simulation is conducted by modeling the swirling flow region (SFR), and the swirling strength is calculated to characterize the SFR's particle‐capturing ability. Experimental validation of the modeling and simulation methods is performed using a printed microfluidic chip, which has demonstrated exceptional reliability. Simulation results show that the baffle wall makes considerable influence on the SFR. Strikingly, a global range adjustment of stagnation point is realized when the baffle wall is configured with a convex shape, which has remarkably outperformed our previous work, where the stagnation point could only move within half range of the field. This work significantly contributes to advanced flow field structure and provides insight into better regulation of stagnation point as well as microparticles. These findings have potential applications in the analysis of the effect of bio/chemical substances on single cell.
Research progress on chemical modifications of tyrosine residues in peptides and proteins
Authors: Zeng Wei , Xue Jianyuan , Geng Haoxing , Liu Xia , Yang Jin , Shen Wei , Yuan Yuqing , Qiang Yujie , Zhu Qing
Published: December 2023

The chemical modifications (CMs) of protein is an important technique in chemical biology, protein‐based therapy, and material science. In recent years, there has been rapid advances in the development of CMs of peptides and proteins, providing new approaches for peptide and protein functionalization, as well as drug discovery. In this review, we highlight the methods for chemically modifying tyrosine (Tyr) residues in different regions, offering a comprehensive exposition of the research content related to Tyr modification. This review summarizes and provides an outlook on Tyr residue modification, aiming to offer readers assistance in the site‐selective modification of macromolecules and to facilitate application research in this field.
Photoluminescence properties of Eu2+‐activated thiogallate phosphors
Authors: Cho Young‐Sik , Bok Moon‐Su , Huh Young‐Duk
Published: December 2023

This work analyzes the crystal structural properties and photoluminescence properties of six Eu2+‐activated thiogallates: CaGa2S4:Eu2+, SrGa2S4:Eu2+, EuGa2S4, BaGa2S4:Eu2+, Sr2Ga2S5:Eu2+, and Eu2Ga2S5. Photoluminescence parameters such as the absorption energy (Eabs), emission energy (Eem), zero‐phonon line energy (E0), Stokes shift (ΔS), and red shift (D) are discussed. This work is the first report on the photoluminescence parameters of these six Eu2+‐activated thiogallates and therefore provides important information about these materials.
Development and validation of a sensitive UPLC–MS/MS analytical method for GFH009 in rat plasma and its application to toxicokinetics studies
Authors: Liu Qiang , Zhao Jin‐Zhu , Zhou Fu‐Sheng , Lan Jiong , Lu Qiang , Ren Hong‐Can
Published: December 2023

GFH009 is a potent, highly selective, small molecule that targets and inhibits the activity of the CDK9/cyclin T1 regulatory complex of P‐TEFb. This study aimed to develop and validate a highly selective and sensitive ultrahigh‐performance liquid chromatography–tandem mass spectrometry (UHPLC–MS/MS) method for precise quantification of GFH009 in rat plasma. This method was subsequently employed for conducting toxicokinetic studies of GFH009 in rats. Plasma was prepared using a simple protein precipitation method by acetonitrile. Chromatographic separation of the analytes was achieved on a BEH C18 analytical column with a rapid 3.0 min run time and a flow rate of 0.5 ml/min. The calibration curves for plasma samples exhibited excellent linearity over a wide concentration range of 1.0–1,000 ng/ml for GFH009. Intra‐ and inter‐day accuracies were within 92.7–105.7%, and precisions were no more than 6.7%. Furthermore, the analyte demonstrated stability under four different storage conditions, with variations of <15.0%. This study pioneers a methodological innovation by introducing a highly reliable, specific and sensitive analytical method for GFH009 in rat plasma. The successful application of this method in toxicokinetic studies further underscores its significance, offering valuable insights for the methodology of clinical pharmacokinetic research.