bluuebunny/crossref_metadata_2025_split huggingface dataset:
Advancing primate surveillance with image recognition techniques from unmanned aerial vehicles
Authors: He Gang , Zhang Xiao , Wang Jie , Xu Pengfei , Hou Xiduo , Dong Wei , Lei Yinghu , Jin Xuelin , Wang Weifeng , Tian Wenyong , Huang Yan , Li Desheng , Qin Tianyu , Wang Jing , Pan Ruliang , Li Baoguo , Guo Songtao 
Published: August 2024

AbstractUsing unmanned aerial vehicles (UAVs) for surveys on thermostatic animals has gained prominence due to their ability to provide practical and precise dynamic censuses, contributing to developing and refining conservation strategies. However, the practical application of UAVs for animal monitoring necessitates the automation of image interpretation to enhance their effectiveness. Based on our past experiences, we present the Sichuan snub‐nosed monkey (Rhinopithecus roxellana) as a case study to illustrate the effective use of thermal cameras mounted on UAVs for monitoring monkey populations in Qinling, a region characterized by magnificent biodiversity. We used the local contrast method for a small infrared target detection algorithm to collect the total population size. Through the experimental group, we determined the average optimal grayscale threshold, while the validation group confirmed that this threshold enables automatic detection and counting of target animals in similar datasets. The precision rate obtained from the experiments ranged from 85.14% to 97.60%. Our findings reveal a negative correlation between the minimum average distance between thermal spots and the count of detected individuals, indicating higher interference in images with closer thermal spots. We propose a formula for adjusting primate population estimates based on detection rates obtained from UAV surveys. Our results demonstrate the practical application of UAV‐based thermal imagery and automated detection algorithms for primate monitoring, albeit with consideration of environmental factors and the need for data preprocessing. This study contributes to advancing the application of UAV technology in wildlife monitoring, with implications for conservation management and research.
Silylene‐Copper‐Amide Emitters: From Thermally Activated Delayed Fluorescence to Dual Emission
Authors: Ghosh Moushakhi , Chatterjee Joy , Panwaria Prakash , Kudlu Ashwath , Tothadi Srinu , Khan Shabana 
Published: August 2024

AbstractHerein, we report the inaugural instance of N‐heterocyclic silylene (NHSi)‐coordinated copper amide emitters (2–5). These complexes exhibit thermally activated delayed fluorescence (TADF) and singlet‐triplet dual emission in anaerobic conditions. The NHSi‐Cu‐diphenylamide (2) complex demonstrates TADF with a very small ΔEST gap (0.01 eV), an absolute quantum yield of 11 %, a radiative rate of 2.55×105 s−1, and a short τTADF of 0.45 μs in the solid state. The dual emissive complexes (3–5) achieve an absolute quantum yield of up to 20 % in the solid state with a kISC rate of 1.82×108 s−1 and exhibit room temperature phosphorescence (RTP) with lifetimes up to 9 ms. The gradual decrease in the intensity of the triplet state of complex 3 under controlled oxygen exposure demonstrates its potential for future oxygen‐sensing applications. Complexes 2 and 3 have been further utilized to fabricate converted LEDs, paving the way for future OLED production using newly synthesized NHSi‐Cu‐amides.
Multimode Luminescence Tailoring in PMA4Na(In,Sb)Cl8 Organic–inorganic Hybrid Metal Halide via Rigid Benzene Ring Induced Local Lattice Distortion
Authors: Yang Wei , Dang Peipei , Zhang Guodong , Liu Dongjie , Wang Yingsheng , Wei Yi , Lian Hongzhou , Li Guogang , Lin Jun 
Published: August 2024

AbstractLow dimensional organic‐inorganic hybrid metal halide materials have attracted extensive attention due to their superior optoelectronic properties. However, low photoluminescence quantum yields (PLQYs) caused by parity‐forbidden transition hinder their further application in optoelectronic devices. Herein, a novel yellow‐emitting PMA4Na(In,Sb)Cl8 (C7H10N+, PMA+) low‐dimensional OIMHs single crystal with a PLQY as high as 88 % was successfully designed and synthesized, originating from the fact that the doping of Sb3+ effectively relaxes the parity‐forbidden transition by strong spin‐orbit (SO) coupling and Jahn‐Teller (JT) interaction. The as‐prepared crystal shows an efficient dual emission peaking 495 and 560 nm at low temperature, which are ascribed to different levels of 3P1→1S0 transitions of Sb3+ in [SbCl6]3− octahedral caused by JT deformation. Moreover, wide‐range luminescence tailoring from cyan to orange can be achieved through adjusting excitation energy and temperature because of flexible [SbCl6]3− octahedral in the PNIC lattice. Based on a relative stiff lattice environment, the 560 nm yellow emission under 350 nm light excitation exhibits abnormal anti‐thermal quenching from 8 to 400 K owing to the suppression of non‐radiative transition. The multimode luminescence regulation enriches PMA4Na(In,Sb)Cl8 great potential in the field of optoelectronics such as temperature sensing, low temperature anti‐counterfeiting and WLED applications.
Synergistic Photoredox/Palladium Catalyzed Enantioconvergent Carboxylation of Racemic Heterobiaryl (Pseudo)Halides with CO2
Authors: Ye Bihai , Su Lei , Zheng Kaiting , Gao Shen , Liu Jiawang 
Published: August 2024

AbstractHerein, we report a synergistic photoredox/palladium catalytic system for the efficient enantioconvergent synthesis of axially chiral esters from racemic heterobiaryl (pseudo)halides (bromides/triflates) with CO2 and alkyl bromides under mild conditions. A wide range of axially chiral esters were obtained in good to high yields with excellent enantioselectivities. Detailed mechanistic studies unveiled that the ratio of photocatalyst and palladium catalyst exhibited significant impact on the chemo‐ and enantioselectivities of the reaction. Kinetic studies and control experiments supported the proposed mechanism involving cascade asymmetric carboxylation followed by SN2 substitution. The achievement of high enantioselectivity relies not only on the choice of synergistic metallaphotoredox catalysts but also on the utilization of alkyl bromides, which trap the generated chiral carboxylic anions in situ, thus preventing their immediate racemization.
Improving the compatibility of polylactic acid/polycarbonate blends with nanoclay and Joncryl as chain extenders
Authors: Khojasteh‐Khosro Saeed , Shalbafan Ali , Thoemen Heiko 
Published: August 2024

AbstractThis study aimed to optimize the compatibility and performance of PLA/PC blends by investigating the effects of Cloisite 20A nanoclay (NC) and Joncryl chain extender (CE). PLA/PC blends with varying NC and CE loadings were prepared, and the optimal formulation was identified. The optimal NC and CE content were then used to produce PLA/PC blends with varying PC ratios. The test specimens were produced by mixing the mixture in a twin‐screw micro compounder and subsequent injection molding into dog bone specimens to investigate the thermal, mechanical, and morphological properties of the blends. Scanning electron microscopy and dynamic mechanical analysis confirmed the immiscibility of the unmodified blend, but significant improvements in blend morphology were observed with high NC/CE ratios. The presence of NC/CE resulted in reduced droplet size of dispersed PC phase and a new intermediate glass transition temperature (Tg) in DMA, suggesting partial miscibility. The highest thermal stability improvement was achieved with 5 wt% NC alone or a combination of 5 wt% NC and 1 wt% CE. Composites containing NC/CE showed the most significant improvements in composite properties, demonstrating their effectiveness as compatibilizers and improved compatibility in PLA/PC blends. These results indicate that the use of NC/CE is a promising method for expanding the applicability of PLA/PC blends.
Adaptive learning control for group consensus tracking of discrete nonlinear multiagent systems
Authors: Gao Qianhui , Li Jinsha , Li Junmin 
Published: August 2024

AbstractIn this article, we explore the group output tracking consensus problem for discrete‐time strict‐feedback
‐order nonlinear multiagent systems that run repeatedly on finite time
. A novel distributed adaptive iterative learning group consensus protocol is designed, which consists of two main components. The first component is based on time‐varying neural networks, which is used to approximate the unknown nonlinear function in the
‐step ahead predictor. In general, not all followers can access the information regarding the leader, which complicates the design of iterative learning protocols for MASs. Therefore, the second component of the protocol addresses this challenge by treating the leader's output as a time‐varying parameter and designing a time‐varying auxiliary term to compensate the leader's output information. Parameter updating laws and initial state learning laws are also proposed via the cooperative‐competitive relationship between the agents. We demonstrate the group consensus with sufficient small errors can be achieved at time
, as the number of iterations proceed to infinity. Then, the results are extended to the case of multisubgroups and multileaders. Finally, two simulations validate the findings of this article.
Discrete‐time Pontryagin maximum principle under rate constraints: Necessary conditions for optimality
Authors: Ganguly Siddhartha , Das Souvik , Chatterjee Debasish , Banavar Ravi 
Published: August 2024

SummaryLimited bandwidth and limited saturation in actuators are practical concerns in control systems. Mathematically, these limitations manifest as constraints imposed on the control actions, their rates of change, and, more generally, the global behavior of their paths. While the problem of actuator saturation has been studied extensively, little attention has been devoted to the problem of actuators having limited bandwidth. While attempts have been made in the direction of incorporating frequency constraints on state‐action trajectories before, rate constraints on the control at the design stage have not been studied extensively in the discrete‐time regime. This article contributes toward filling this lacuna: We establish a new discrete‐time Pontryagin maximum principle withrate constraintsimposed on the control trajectories and derive first‐order necessary conditions for optimality. A brief discussion on the existence of optimal control is also included.
A Review on the Role of Hydrogen Bonds in Organic Electrode Materials
Authors: Wang Yonghui , Zhao Yuxuan , Xu Xinlei , Gao Weizhe , Zhang Qichun , Huang Weiwei 
Published: August 2024

AbstractOrganic electrode materials (OEMs) hold significant development potential in the field of batteries and are regarded as excellent complementary materials to resource‐limited inorganic electrode materials, which have recently been the subject of extensive research. As research deepens, an increasing number of scholars recognize the influence of weak bond interactions on the properties of OEMs. Generally, weak bond interactions have more pronounced effects on organic materials compared to inorganic ones. Among various weak interactions, hydrogen bonds are particularly noteworthy, having been proven to play crucial roles in adjusting electrode charge distribution, stabilizing crystal structures, and inhibiting cyclic dissolution. The studies of hydrogen bonds in OEMs are therefore of paramount importance for guiding their future development. In this review, we primarily summarize the research progress in hydrogen bond science within OEMs and discuss future research directions and development prospects in this area. Hoping to provide valuable references for the advancement of OEMs.
Off–On fluorescent benzothiazole‐fused coumarin for sensitive detection of nitroreductases and hydrogen sulfide
Authors: Yoo Song Yi , Kim Na Yoon , Lee Min Hee 
Published: August 2024

AbstractHydrogen sulfide (H2S) and nitroreductases (NTR) are key biological reductants, with H2S acting as a key signaling molecule and NTR reducing nitro groups to amines in cellular metabolism. Visualizing these reducing components, often overexpressed in cancer cells or bacterial environments, is crucial for metabolic understanding. Existing fluorescent probes detect these individually, but simultaneous detection methods are unexplored. We designed probe 1, which shows high fluorescence only when both NTR and H2S are overexpressed. The probe transformed into benzothiazole‐fused coumarin by NTR, exhibiting fluorescence, and shows a stronger signal in the presence of both NTR and H2S, making it a potential tool for detecting their simultaneous overexpression.
Evaluating human papillomavirus (HPV) self‐sampling among Latinas in the United States: A systematic review
Authors: Cora‐Cruz Marisol S. , Martinez Omar , Perez Sophia , Fang Carolyn Y. 
Published: August 2024

AbstractBackgroundLatinas experience the greatest cervical cancer incidence compared with other ethnic/racial groups in the United States (US) due in part to significant disparities in screening uptake. Social and structural conditions that impede access to and participation in screening include language barriers, concerns about documentation status, logistical issues (e.g., transportation, limited clinic hours), and cultural beliefs regarding modesty and promiscuity. To overcome these challenges, self‐sampling for human papillomavirus (HPV) DNA testing has emerged as a potentially promising method for promoting cervical cancer screening among this population. Thus, this systematic review aimed to assess the acceptability of HPV self‐sampling among US Latinas.MethodsUsing EBSCOhost and PubMed databases, we searched for studies published in the past two decades (2003–2023) that described participation in HPV self‐sampling among Latinas. Eleven articles met inclusion criteria.ResultsThe majority of studies were conducted in Florida, California, and Puerto Rico, were single‐arm designs, and involved the use of community health workers and Spanish‐language materials (e.g., brochures). Across studies, the majority of participants reported that self‐sampling was acceptable with respect to ease of use, comfort (lack of pain), privacy, and convenience; however, some women were concerned about the accuracy of self‐sampling or whether they had performed sample collection correctly.ConclusionGiven the high acceptability, self‐collection of cervicovaginal samples for HPV testing may offer a feasible option for enhancing participation in cervical cancer screening in this population that encounters significant barriers to screening.
NRBP1 promotes malignant phenotypes of glioblastoma by regulating PI3K/Akt activation
Authors: Zhang Anli , Peng Shichao , Sun Sibai , Ye Shan , Zhao Ye , Wu Qiang 
Published: August 2024

AbstractObjectivesGlioblastoma (GBM) is the most aggressive of intracranial gliomas. Despite the maximal treatment intervention, the median survival rate is still about 14–16 months. Nuclear receptor‐binding protein 1 (NRBP1) has a potential growth‐promoting role on biology function of cells. In this study, we investigated whether NRBP1 promotes GBM malignant phenotypes and the potential mechanisms.MethodsThe correlation between NRBP1 and glioma grade, prognosis in TCGA/CGGA databases and our clinical data were analyzed. Next, we conducted knockout and overexpression of NRBP1 on GBM cells to verify that NRBP1 promoted cell proliferation, invasion, and migration in vitro and in vivo. Finally, we detected the impact of NRBP1 on PI3K/Akt signaling pathway and EMT.ResultsThere was a correlation between elevated NRBP1 expression and advanced stage glioma, as well as decreased overall and disease‐free survival. The suppression of proliferation, invasion, and migration of tumor cells was observed upon NRBP1 knockout, and in vitro studies also demonstrated the induction of apoptotic cell death. Whereas, its overexpression is associated with high multiplication rate, migration, invasion, and apoptotic escape. GO enrichment and KEGG analysis revealed that NRBP1 regulated differentially expressed gene clusters are involved in PI3K/Akt signaling pathway, as well as EMT mediated by this pathway. Moreover, the effects of NRBP1 knockdown and overexpression on GBM were mitigated by MK‐2206 and SC79, both of which respectively function as an inhibitor and an activator of the PI3K/Akt signaling pathway. Similarly, the suppression of NRBP1 led to a decrease in tumor growth, whereas its overexpression promoted tumor growth in a mouse model.ConclusionsThis study shows that NRBP1 promotes malignant phenotypes in GBM by activating PI3K/Akt pathway. Hence, it can function as both a predictive indicator and a new target for therapies in GBM treatment.
A comprehensive study evaluating germline FANCG variants in predisposition to breast and ovarian cancer
Authors: Soukupova Jana , Stastna Barbora , Kanwal Madiha , Hojny Jan , Zemankova Petra , Borecka Marianna , Cerna Leona , Cerna Marta , Cerna Monika , Curtisova Vaclava , Dolezalova Tatana , Duskova Petra , Foretova Lenka , Havranek Ondrej , Horackova Klara , Hovhannisyan Milena , Hruskova Lucie , Chvojka Stepan , Janatova Marketa , Janikova Maria , Jelinkova Sandra , Just Pavel , Kalousova Marta , Kleiblova Petra , Kosarova Marcela , Koudova Monika , Kral Jan , Krausova Michaela , Krutilkova Vera , Machackova Eva , Matejkova Katerina , Michalovska Renata , Nehasil Petr , Nemcova Barbora , Novotny Jan , Palek Matous , Pesek Pavel , Safarikova Marketa , Scheinost Ondrej , Springer Drahomira , Stolarova Lenka , Stranecky Viktor , Subrt Ivan , Tavandzis Spiros , Tureckova Eva , Vesela Kamila , Vlckova Zdenka , Vocka Michal , Zima Tomas , Macurek Libor , Kleibl Zdenek ,   the CZECANCA consortium
Published: August 2024

AbstractBackgroundMonoallelic germline pathogenic variants (GPVs) in five Fanconi anemia (FA) genes (BRCA1/FANCS, BRCA2/FANCD1, PALB2/FANCN, BRIP1/FANCJ, and RAD51C/FANCO) confer an increased risk of breast (BC) and/or ovarian (OC) cancer, but the role of GPVs in 17 other FA genes remains unclear.MethodsHere, we investigated the association of germline variants in FANCG/XRCC9 with BC and OC risk.ResultsThe frequency of truncating GPVs in FANCG did not differ between BC (20/10,204; 0.20%) and OC (8/2966; 0.27%) patients compared to controls (6/3250; 0.18%). In addition, only one out of five tumor samples showed loss‐of‐heterozygosity of the wild‐type FANCG allele. Finally, none of the nine functionally tested rare recurrent missense FANCG variants impaired DNA repair activities (FANCD2 monoubiquitination and FANCD2 foci formation) upon DNA damage, in contrast to all tested FANCG truncations.ConclusionOur study suggests that heterozygous germline FANCG variants are unlikely to contribute to the development of BC or OC.
Exploring the association between metabolic syndrome, its components and subsequent cancer incidence: A cohort study in Catalonia
Authors: López‐Jiménez Tomàs , Plana‐Ripoll Oleguer , Duarte‐Salles Talita , Recalde Martina , Bennett Matthew , Xavier‐Cos Francesc , Puente Diana 
Published: August 2024

AbstractBackgroundMetabolic syndrome (MS) has emerged as a significant global health concern. The relationship between MS and the risk of cancer doesn‘t seem clear, whether examining by components or in combination. The objective of this study is to examine the relationship between MS, its components, and the overall risk of cancer, including the risk of 13 specific cancer types.MethodsWe included 3,918,781 individuals aged 40 years or older sourced from the SIDIAP database between 2008 and 2017. Cox models were employed with MS components and their combinations. A subsample was created using a matched cohort (by age and sex). Incidence curves were computed to determine the time elapsed between the date of having 1–5 MS components and cancer incidence, compared to matched participants with no MS components, which showed that individuals who had one MS component experienced a greater incidence of cancer over 5 and 10 years than individuals with no MS, and the incidence rose with an increase in the number of MS components.ResultsIndividuals exposed to MS components were diagnosed with cancer earlier than those who were not exposed to them. In the Cox model, HDL (HR 1.46, 95% CI: 1.41–1.52) and Glycemia (HR 1.40, 95% CI: 1.37–1.44) were the individual combinations with the highest risk of overall cancer. In combinations with two components, the highest HR was HDL+Glycemia (HR 1.52, 95% CI: 1.45–1.59) and Glycemia+HBP (HR 1.48, 95% CI: 1.45–1.50). In combinations with three components, the highest HR was HDL+Glycemia+HBP (HR 1.58, 95% CI: 1.55–1.62).ConclusionIn summary, having one or more MS components raises the risk of developing at least 11 cancer types and these risk differ according to type of component included. Some sex differences are also observed. Our findings suggest that implementing prevention measures aimed at specific MS components may lower the risk of various cancer types.
Metastatic sinonasal malignancies of colorectal origin: Case report and comprehensive review of the literature
Authors: Rothka Andrew J. , Goldrich David , Lighthall Jessyka G. 
Published: August 2024

Key Clinical MessagePrimary adenocarcinomas represent a small percentage of sinonasal malignancies. Metastasis of colorectal malignancies to the paranasal sinuses is rare, poorly understood, and typically fatal. This case documents an unusual source of metastatic sinonasal malignancy and offers comparison to a cohort of similar patients found in the literature.
Apert syndrome in a newborn with premature fusion of skull bones, a rostral nose, and cleft palate: A case report
Authors: Faraji Navid , Goli Rasoul , Atharifar Reza , Shahmirza Noushin 
Published: August 2024

Key Clinical MessageThis case details a term neonate with Apert syndrome, featuring webbed digits, FGFR2 mutations, skull bone fusion, a rostral nose, and cleft palate. The neonate displayed acrocephaly, a flat skull back, a prominent forehead, and syndactyly, confirming Apert syndrome. It emphasizes the need for early recognition and intervention.
The Catalytic Mechanisms and Design Strategies of Noble Metal Catalysts for Selective Reduction of NOx with CO
Authors: Chen Mohaoyang , Lian Dianxing , Wang Huanli , Liu Yan , Liu Yaqi , Li Chenxi , Dai Guiyao , Liu Botao , Hou Shujun , Zhang Weiwei , Wu Ke , Ji Yongjun 
Published: August 2024

AbstractThe selective catalytic reduction of NOx by CO (CO‐SCR) is a viable method for simultaneously mitigating NOx and CO emissions in motor vehicle exhaust and industrial flue gases. Extensive research has been conducted on noble metal catalysts because of their superior catalytic activity and stability compared to non‐noble metals. Noble metal catalysts demonstrate efficient NOx conversion and high selectivity for N2. However, achieving high conversion, selectivity, and stability over a wide temperature range in the presence of excess O2, H2O, and SO2 remains a significant challenge. This review summarizes recent advancements in CO‐SCR over noble metal catalysts, providing insights for the development of CO‐SCR catalysts. This paper first examines the reaction mechanisms of CO‐SCR, followed by a discussion on the design and optimization strategies of noble metal catalysts, with a focus on composition and structural effects. This includes creating active metal sites, selecting appropriate supports, integrating catalytic additives, choosing monometallic nanoparticles, alloying, and using single‐atom catalysts. Finally, remaining challenges and potential avenues for future research have been suggested. The discovery of negatively charged noble metal single‐atom‐site catalysts presents new research opportunities.