bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chiral Sensing of Amino Acids under Visible Light via Hydroxypropyl Cellulose Gels
Authors: Huang Luyao , Zhang Xianzhe , Xu Cheng , Wang Jiwei , Zhang Allen , Liu Yongmin , Zhu Hongli 
Published: February 2025

AbstractThe identification of Chiral molecules is essential in pharmaceutical and food science. However, conventional methods are complex and cost‐prohibitive. This study introduces a sustainable method using hydroxypropyl cellulose (HPC) gel to identify amino acids enantiomers, such as phenylalanine and alanine, through visible light. By integrating the structural color properties of HPC, this research demonstrates the HPC gel's capability to distinguish L (Levo)‐phenylalanine (L‐Phe), D (Dextro)‐phenylalanine (D‐Phe), and DL (racemic mixture)‐phenylalanine (DL‐Phe) supplemented with visible circular dichroism (CD) spectra or hydrochloric acid (HCl) as visual indicators. Similar chiral sensing results are observed with D‐alanine, L‐alanine, and DL‐alanine. Unlike traditional UV‐based detection requiring expensive equipment, this approach simplifies the process while maintaining sensitivity. Varying phenylalanine concentrations altered the CD response without disrupting the gel's helical structure, and color changes in response to HCl addition facilitated visual identification of enantiomers. Furthermore, adding various salts generates colorful HPC/Phe gels, demonstrating their suitability for 3D printing. Meanwhile, the HPC gels remained functional for three months, indicating long‐term stability. These advancements are significant for pharmaceutical and biotechnological industries, facilitating efficient low‐concentration chirality detection (0.2 wt.%). Continued development and refinement of this technology are expected to expand its applications and improve analytical capabilities for future chirality‐related studies and photonic gel 3D printing.
Ferroelectric Compensation Effect of the Hard Electrode for the HfO2‐ZrO2 Superlattice Films at the Low‐Annealing Temperature
Authors: Zhu Chuqian , Bai Na , Wang Yufan , Sun Huajun , Zou Lanqing , Yi Yunhui , Xu Jiyang , Ren Jiawang , Zhang Junming , Hu Sheng , Xue Kanhao , Ye Lei , Cheng Weiming , He Qiang , Miao Xiangshui 
Published: February 2025

AbstractThis study investigates the ferroelectric (FE) performance of [HfO2/ZrO2]6 superlattice FE capacitors using different top electrodes (TE). The unidirectional rapid thermal annealing (RTA) process from 450 to 600 °C is conducted. The device's remanent polarization (Pr) improved with TE hardness, and is maintained with harder TE at lower temperature. Furthermore, the superlattice's endurance and the recovery feature improve with harder TE. The increased orthorhombic phase (o‐phase) content and the decreased tetragonal phase (t‐phase) content indicate that the hard TE's out‐of‐plane stress at the interface suppressed the phase transition from the t‐phase to the monoclinic phase (m‐phase) and promotes the o‐phase formation. It's known that hard electrodes usually have low coefficient of thermal expansion (CTE), which can generate high in‐plane tensile strain optimizing the FE properties, so the lower‐CTE electrodes devices’ FE performances are expected to degrade more with temperature decreasing, which is opposite with the experimental results. Therefore, hard electrodes can generate high out‐of‐plane compressive stress to offset the reduced in‐plane tensile stress, leading to a FE compensation effect in low temperature thermal process.
They Are People Too: The Ethics of Curation and Use of Human Skeletal Remains for Teaching and Research
Authors: Robbins Schug Gwen , Halcrow Siân E. , de la Cova Carlina 
Published: February 2025

ABSTRACTThis paper is an introduction and review for the special issue of AJBA on the Curation and Use of Human Skeletal Remains for Teaching and Research, which emerged from an organized session at the American Association of Biological Anthropologists in 2022. The authors of this special issue describe the ethical challenges surrounding the collection, curation, and use of human skeletal remains in biological anthropology, focusing particularly on the historical exploitation of marginalized communities, such as Indigenous and African American populations. These remains were often acquired without consent through colonial exploitation and unethical practices like grave robbing. This introduction presents a historical review of the dehumanization of these remains, which have been treated as scientific specimens rather than as individuals with complex histories. We highlight the ongoing misuse of human remains in academic settings and the perpetuation of structural violence. The papers in this special issue call for the development of ethical guidelines that emphasize transparency, respect for descendant communities, and the consideration of non‐destructive research methods. The authors advocate for rehumanizing these remains, fostering collaboration with descendant communities, and supporting efforts for repatriation. This special issue aims to encourage biological anthropologists to pause and critically reflect on the discipline's colonial and racist foundations, taking meaningful steps toward a more ethical and just treatment of human remains in teaching and research.
Sustainability in Energy Companies Under the Lens of Cultural Pressures: When Do We Talk of Greenwashing?
Authors: Esposito Paolo , Doronzo Emanuele , Riso Vincenzo , Tufo Massimiliano 
Published: February 2025

ABSTRACTListed companies allocate resources to various renewable energy and green innovation initiatives driven by economic and environmental, social, and governance (ESG) objectives. Corporations experience increased pressure from stakeholders, potentially hindering the concurrent achievement of economic and ESG goals and leading to phenomena such as greenwashing. This study examines whether these investments and practices represent an authentic transformation in corporate strategy or a mere rebranding attempt. Moreover, it investigates whether cultural dimensions can serve as predictors of greenwashing. The investigation progresses through three stages. First, a homogenous dataset of 59 companies listed in EU countries between 2011 and 2022 is identified. Second, the data envelopment analysis methodology is employed in the second stage to determine the energy companies' efficiency. An effective energy enterprise must simultaneously achieve social, environmental, and economic objectives. The study calculates a greenwashing proxy, creating a binary variable assigning a value of 1 to energy companies not impacted by greenwashing and 0 to those that are. Finally, logistic regression is utilized to investigate the correlation between the variable that denotes energy companies subjected to greenwashing and Hofstede's cultural dimensions. The study reveals that firms operating in countries with high levels of masculinity are more likely to participate in deceptive environmental practices known as “greenwashing.” This outcome has implications for academic and practical purposes, notably regarding stakeholder involvement and the re‐evaluation of strategic and decision‐making procedures impacted by the interplay of cultural values and green technology. To the best of our knowledge, this study represents the sole investigation that applies this approach to examining non‐financial reporting, focusing on the interplay between cultural values, ESG, and their interaction effects.
Interview With the Philosopher and Artist Mattin: It Is Easier to Imagine the End of the World Than an Alternative to the Liberal Individual
Authors: Malaspina Cécile , Mattin  
Published: February 2025

ABSTRACTThe present text is the first English translation of an interview I conducted with Mattin previously published in French in the journal of the Collège International de Philosophie, Rue Descartes.
Improving Vaccination Coverage Through Community Pharmacy Service Delivery in Nigeria: The COVID‐19 Experience and Implications for Policy Review
Authors: Oseni Yejide Olukemi , Okafor Ukamaka Gladys , Odukoya Taofik Oladipupo , Oluyedun Hamidu Adediran , Ajibade Abiodun Abdulah , Azeez Yusuff Olanrewaju , Okonu Abigail Isaac , Adetunji Oladapo Adewale , Ademisoye Adebusuyi Akande , Sanusi Fatimah Adebukola , Nzedibe Okechi Eberechukwu 
Published: February 2025

ABSRACTBackgroundGlobally, the use of community pharmacies and pharmacists in the delivery of vaccination services has been hampered by several factors, laws, and regulations that do not support pharmacists to participate in the delivery of vaccination services. With the advent of COVID‐19 pandemic, many countries have included community pharmacists and pharmacies in vaccination services to improve coverage. This study described the delivery of vaccination services in community pharmacies using the COVID‐19 experience and how their involvement impacted vaccination coverage in Nigeria. It also exposed how this experience can be used to support policy revisions to formally recognize pharmacists in immunization delivery.MethodsA descriptive cross‐sectional study was conducted among 474 community pharmacists in two southwestern States in Nigeria, using a semi‐structured questionnaire. It determines the number of community pharmacists who have been trained in the delivery of vaccination services, the types of vaccination services provided, and vaccines administered in their pharmacies. Data were analyzed with descriptive and inferential statistics and p‐value at ≤ 0.05.ResultsResponse rate was 86.7%. Less than half of the respondents (40.1%) had undergone vaccination training. Of the 129 (31.4%) respondents that provide vaccination services, 72 (55.8%) administer vaccines in their pharmacies. Out of these 72 respondents; 45 (62.5%) were administering vaccines before their involvement in COVID‐19 vaccine administration; 57 (79.2%) of the health personnel who administer vaccines were pharmacists; 60 (83.3%) of them administer vaccines on request; 22 (30.6%) administered COVID‐19 vaccines only; and only 7 (9.7%) of the respondents had administered over 500 doses of COVID‐19 vaccines. Training in vaccination was associated with the vaccination services provided (p = 0.000). Respondents suggested government support through legal framework and policy review, training and empowering pharmacists in vaccine administration, and recognition of community pharmacists as PHC providers.ConclusionTraining of community pharmacists in vaccination services had increased the number of respondents' involvement in the delivery of the services while the delivery of COVID‐19 vaccination by community pharmacists had increased the number of clients vaccinated, hence improved coverage in Nigeria. Also, policy review and inclusion of community pharmacists and pharmacies in the national database will improve vaccination coverage and immunization service delivery in Nigeria.
Cropping frequency and crop acreage in response to temperature change: Evidence from China
Authors: Du Jue , Chen Xiaoguang , Hou Lingling 
Published: February 2025

AbstractThis paper employs a 25‐year panel of Chinese counties to examine the nonlinear impacts of rising temperatures on cropping frequency and acreages. We find that growing degree days have no significant effects, while extreme heat, measured by harmful degree days, reduces cropping frequency mainly through a reduction in total planted area. Improved irrigation conditions, higher levels of mechanization, and adequate precipitation can mitigate these adverse impacts. Simulations based on uniform warming scenarios ranging from 0.5°C to 2.0°C predict that future warming will reduce cropping frequency by 0.02–0.10, driven by a decline in planted area (1.0%–6.3%).
Differential Expression of Hormone‐Related Genes in the Heads of Adult and Nymphal Woodroaches (Cryptocercus)
Authors: Hanada Takumi , Yaguchi Hajime , Fujiwara Kokuto , Hayashi Yoshinobu , Nalepa Christine A. , Maekawa Kiyoto 
Published: February 2025

ABSTRACTTermites are eusocial cockroaches, but the crucial distinctions in gene expression during the evolution of eusociality remain unclear. One reason for the lack of this information is that comparative transcriptome analysis of termites with their sister group, the cockroach genus Cryptocercus, has not been conducted. We identified genes associated with three vital hormones (juvenile hormone [JH], 20‐hydoroxyecdysone [20E], and insulin) from the genome sequence of Cryptocercus punctulatus and conducted RNA‐seq analysis using the heads of female/male adults and nymphs to elucidate their expression levels. The comprehensive gene expression analysis revealed a multitude of genes exhibiting differences in expression between developmental stages rather than between sexes. Subsequently, we compared the differences in expression patterns of each hormone‐related gene by combining the results of a previous RNA‐seq study conducted on the heads of castes (reproductives, workers, and soldiers) in the termite Reticulitermes speratus. The results indicated that genes with expression differences among castes in R. speratus, particularly those related to JH and 20E, were significantly more abundant compared to genes with expression differences between adults and nymphs in C. punctulatus. While no significant difference was observed in the number of genes within the insulin signaling pathway, a trend of homologs highly expressed in adult woodroaches but not in adult termites was observed, and the expression patterns of positive and negative regulators in the pathway differed significantly between adults and nymphs. The differences in the expression patterns between Cryptocercus and termites are believed to reflect variations in hormone levels and signaling activities between adults and juveniles, the latter encompassing workers and soldiers in the case of termites.
LEADERS GETTING DIFFERENT: IT’S TIME TO UNLEASH AGENCY FOR INDIVIDUAL, TEAM, AND ORGANIZATIONAL BETTERMENT
Authors: Miller Frederick A. , Katz Judith H. 
Published: February 2025

AbstractThe authors [Miller‐ CEO of The Kaleel Jamison Consulting Group, Inc.; and Katz (co‐creator with Miller of many key concepts in Organization Development)] examine and explain “individual and team agency.” Their definition: “Ensuring all people, of all roles, levels, tenure, and identities have the power, influence, and voice to make choices and decisions related to their jobs and the betterment of their organization.” In discussing the role of senior leaders within this context, they quote Christopher Del Vecchio, President and Chief Executive Officer/CEO of MVP Health Care; Rich Dewey, CEO of New York Independent Systems Operator (NYISO); Hal Yoh, CEO of Day and Zimmermann (D&Z); and Dr. Wendi Williams, Provost and Senior Vice President, Fielding Graduate University. In creating a culture of agency, the authors recount four key actions/steps for leaders; in their words: identify the need for greater agency; test organizational readiness for change; Create a FROM→TO Culture Vision; and Identify the New Narrative and Mindsets to Support the TO State. They provide seven “Senior Leader Self‐Assessment Questions.” The final question is “To what extent do you, as a leader, foster an environment of interaction safety, individually and as a leadership team, in which people feel the freedom to speak up and raise tough issues?”
Mori dream bonds and C∗${\mathbb {C}}^*$‐actions
Authors: Barban Lorenzo , Romano Eleonora A. , Solá Conde Luis E. , Urbinati Stefano 
Published: February 2025

AbstractWe construct a correspondence between Mori dream regions arising from small modifications of normal projective varieties and ‐actions on polarized pairs which are bordisms. Moreover, we show that the Mori dream regions constructed in this way admit a chamber decomposition on which the models are the geometric quotients of the ‐action. In addition, we construct, from a given ‐action on a polarized pair for which there exist at least two admissible geometric quotients, a ‐equivariantly birational ‐variety, whose induced action is a bordism, called the pruning of the variety.
Strichartz estimates for the Schrödinger and wave equations with a Laguerre potential on the plane
Authors: Wang Haoran 
Published: February 2025

AbstractIn this paper, we obtain a set of Strichartz inequalities for solutions to the Schrödinger and wave equations with a Laguerre potential on the plane. To obtain the desired inequalities, we intend to prove the dispersive estimates for the involved Schrödinger and wave propagators and then a standard argument will enable us to arrive at these inequalities. The proof of the dispersive estimate for the Schödinger propagator relies on a crucial uniform boundedness of a series involving the Bessel functions of the first kind, while the dispersive estimate for the wave equation follows from a sequence of standard steps, such as the Gaussian boundedness of the heat kernel, Bernstein‐type inequalities, and Müller–Seeger's subordination formula. We have to verify these classical results in the present setting, which is possible since the spectral properties of the involved Schrödinger operator can be explicitly calculated.
Piezoelectric and Dielectric Properties of Electrospun Polyvinylidene Fluoride (PVDF) Blended with Cellulose Nanocrystals (CNCs)
Authors: Zahari Aminatul Sobirah , Mazwir Muhammad Hafiz , Misnon Izan Izwan , Zulkifli Farah Hanani , Jumali Mohammad Hafizuddin Hj , Jamil Nor Huwaida Janil 
Published: February 2025

AbstractPVDF is a semicrystalline polymer made up of repeating units of ─CH2CF2─ monomer and has five crystalline phases, which are α, β, γ, δ, and ε‐phases. However, piezoelectricity of PVDF is dependent on the β‐phase crystalline. Thus, to increase the formation of the β‐phase, CNCs with various weights (1%–5%) are incorporated into PVDF by using the electrospinning method. The influence of CNCs on electrospun PVDF/CNCs is investigated by using analytical methods such as FESEM, FTIR, XRD, universal testing machine (UTM), electrochemical impedance spectroscopy (EIS), and piezoelectric d33 meter. After incorporating CNCs into electrospun PVDF, two peaks of α‐phase diminished in FTIR absorption and the addition also enhanced mechanical and dielectric properties of the membrane. The piezoelectric constant, dielectric properties, and β‐phase content also increased with higher CNCs addition. PVDF with 4% CNCs has the highest β‐phase content up to 91.74% with the maximum piezoelectric constant, d33 of 45.0 pCN−1 and dielectric constant of 5.4.
Exploring the Potential of Hemp Fiber Composites for Sustainable Materials in Engineering Applications
Authors: Srivastava Pulkit , Arumugam Ananda Babu , Kumar Rajeev , Yadav Tarun , Savilov Serguei V. , Dhapola Pawan Singh , Agrawal Anant Prakash 
Published: February 2025

AbstractThe growth in the demand of sustainable materials being used in engineering has created a need for research into new and alternative materials. This research article is intended to explore the potential of hemp fiber composites in different promising areas, including environmentally friendly engineering applications. An in‐depth analysis of hemp fiber properties has been conducted with a focus on the mechanical thermal and their chemical characteristics which makes hemp fiber more suitable in various engineering applications. Among the mechanical and thermal properties of hemp fiber reinforced composites, careful evaluation of tensile strength, elastic modulus, impact resistance and thermal stability is most important. A detailed study of basic processing methods has been conducted highlighting the recent advances and challenges in the extraction and preparation of hemp fibers. Further in this research the hemp is analyzed in comparison to other alternative materials including natural and synthetic fibres so that the unique benefits of hemp can be highlighted for various engineering applications. The environmental sustainability of hemp fiber composites is also thoroughly studied, emphasizing their biodegradability and positive contribution to life cycle assessment.
Formation of Zeolitic Imidazolate Frameworks‐8 (ZIF‐8) Using Microwave Assisted Hydrothermal Technique
Authors: Dhanasegaran Shantidevi , Low Yiin Jian , Chin Kieng Hang , Osman Nurul Huda , Kamarudin Mazliana Ahmad , Fen Yap Wing , Noor Ikhwan Syafiq Mohd , Ghani Mohd Hafizuddin Ab , Lee Han Kee , Praveena Sarva Mangala , Sudiro Toto , Talib Zainal Abidin , Liew Josephine Ying Chyi 
Published: February 2025

AbstractZeolitic Imidazolate Frameworks‐8 (ZIF‐8) have emerged as a promising class of porous Metal‐Organic Framework materials with a wide range of applications due to their tunable characteristics. This study presents the synthesis of ZIF‐8 using the microwave‐assisted hydrothermal method in an aqueous solution to investigate the efficiency and characteristics of ZIF‐8. The synthesis process involves a 15 min microwave irradiation at 180 °C with a mixture of zinc nitrate solution with 2‐methyl imidazole in deionized water with triethylamine. The rapid synthesis yields pure ZIF‐8 crystals, as validated by X‐ray diffraction, energy‐dispersive X‐ray spectroscopy, and Fourier‐Transform Infrared spectroscopy. The formation of ZIF‐8 displays two distinct crystal shapes, with an average size of 0.510 µm, a direct band gap of 4.94 eV as well a BET surface area of 1652.06 m2 g−1. The high‐quality ZIF‐8 produced is ideal for catalysis, gas separation, and other applications, suitable for commercial‐scale production.
Investigation of Flame‐Retarded Epoxy Resin Fiberglass Composite Material‐Based Coplanar Waveguide Patch Antennas
Authors: Kumar Manish , Yadav Vishal , Kwe Ngum Breayon , Savilov Serguei V. , Singh Sandeep Kumar 
Published: February 2025

AbstractThis article examines coplanar waveguide (CPW)‐fed flame‐retarded FR‐4 woven fiberglass laminated antenna design methods and how to optimize electrical parameters, including impedance bandwidth, return loss, and gain. In this article, a comparative examination of different design strategies that can be employed in the CPW‐fed antenna, including adding stubs, slots, notch bands, metamaterials, frequency selective surfaces (FSS), and CPW‐fed multiple‐input‐multiple‐output (MIMO) antennas, is investigated. In the proposed work, meander line effects are explored on the electrical parameters of CPW‐fed FR‐4 woven fiberglass‐laminate antennas. These design methods and their effects on antenna electrical parameters are also examined.
Evaluating a Blend of Amide‐Based Polymer and Glycol as Methane Hydrate Inhibitor
Authors: Singh Ankur , Suri Ajay , Arunprasath K. , Yahya M. Z. A. , Singh Lavish 
Published: February 2025

AbstractPipelines often function in environments characterized by high pressure and low temperatures conditions conducive to hydrate formation. The occurrence of gas hydrate plugs can lead to pipeline blockages, resulting in significant economic losses and posing safety and environmental risks due to potential pipeline failures. In response, the industry is shifting toward low‐dosage kinetic hydrate inhibitors (KHIs) requiring minimal quantities for effective hydrate inhibition. This study focuses on the synthesis and application of a cyclic amide‐based polymer, polyvinyl caprolactam (PVCap), as a kinetic hydrate inhibition. This research also investigates the synergistic interaction between PVCap and monoethylene glycol (EG) where the hydrate inhibition performance of PVCap–EG blends is assessed. The experiments are done in a high pressure autoclave using constant cooling experimental procedure. The results demonstrate that increasing EG concentration in PVCap–EG blends lowers the equilibrium temperature (Teq), indicating effective hydrate inhibition. Moreover, the addition of EG reduces the hydrate growth rate to gas consumption rate ratio, showing its potential to mitigate hydrate formation.