bluuebunny/crossref_metadata_2025_split huggingface dataset:
Repetitive control design for switched neutral systems with input time‐delay
Authors: Saminathan Mohanapriya , Sakthivel Rathinasamy , Reza Karimi Hamid , Parthasarathy Velusamy 
Published: March 2023

SummaryThe design of tracking control problem and compensation of disturbance for switched neutral systems with multiple time‐delays and external disturbances are addressed in this paper. In this regard, a modified repetitive control technique based on the Matausek‐Micic modified Smith predictor approach is being implemented, which assures the exact tracking performance and disturbance attenuation with high precision in the considered system. To be specific, the integration of transfer function with modified Smith predictor block not only provides the accurate compensation of input time‐delays but also ensures the exact estimation and attenuation of external disturbances effectually. Furthermore, according to Lyapunov stability approach combined with average‐dwell‐time technique, a group of adequate conditions is derived in the form of matrix inequalities. Simultaneously, by solving the established matrix inequalities using available software the controller gain matrices are calculated. Ultimately, the simulation results of three numerical examples are presented to validate the efficiency and dominance of the suggested control procedure.
Programmable Tissue Folding Patterns in Structured Hydrogels
Authors: Roy Avinava , Zhang Zenghao , Eiken Madeline K. , Shi Alan , Pena‐Francesch Abdon , Loebel Claudia 
Published: March 2023

AbstractFolding of mucosal tissues, such as the tissue within the epithelium of the upper respiratory airways, is critical for organ function. Studying the influence of folded tissue patterns on cellular function is challenging mainly due to the lack of suitable cell culture platforms that can recreate dynamic tissue folding in vitro. Here, a bilayer hydrogel folding system, composed of alginate/polyacrylamide double‐network (DN) and hyaluronic acid (HA) hydrogels, to generate static folding patterns based on mechanical instabilities, is described. By encapsulating human fibroblasts into patterned HA hydrogels, human bronchial epithelial cells form a folded pseudostratified monolayer. Using magnetic microparticles, DN hydrogels reversibly fold into pre‐defined patterns and enable programmable on‐demand folding of cell‐laden hydrogel systems upon applying a magnetic field. This hydrogel construction provides a dynamic culture system for mimicking tissue folding in vitro, which is extendable to other cell types and organ systems.
A Fluid Multivalent Magnetic Interface for High‐Performance Isolation and Proteomic Profiling of Tumor‐Derived Extracellular Vesicles
Authors: Niu Qi , Shu Yun , Chen Yuanqiang , Huang Zhi , Yao Zhixian , Chen Xiaofeng , Lin Fanghe , Feng Jianzhou , Huang Chen , Wang Hua , Ding Hongming , Yang Chaoyong , Wu Lingling 
Published: March 2023

AbstractIsolation and analysis of tumor‐derived extracellular vesicles (T‐EVs) are important for clinical cancer management. Here, we develop a fluid multivalent magnetic interface (FluidmagFace) in a microfluidic chip for high‐performance isolation, release, and protein profiling of T‐EVs. The FluidmagFace increases affinity by 105‐fold with fluidity‐enhanced multivalent binding to improve isolation efficiency by 13.9 % compared with a non‐fluid interface. Its anti‐adsorption property and microfluidic hydrodynamic shear minimize contamination, increasing detection sensitivity by two orders of magnitude. Moreover, its reversibility and expandability allow high‐throughput recovery of T‐EVs for mass spectrometric protein analysis. With the chip, T‐EVs were detected in all tested cancer samples with identification of differentially expressed proteins compared with healthy controls. The FluidmagFace opens a new avenue to isolation and release of targets for cancer diagnosis and biomarker discovery.
Iron‐siRNA Nanohybrids for Enhanced Chemodynamic Therapy via Ferritin Heavy Chain Downregulation
Authors: Wang Jun , Ding Hongye , Zhu Yang , Liu Yina , Yu Meili , Cai Huilan , Ao Rujiang , Huang Hongwei , Gong Peng , Liao Yaxin , Chen Zhaolin , Lin Lisen , Chen Xiaoyuan , Yang Huanghao 
Published: March 2023

AbstractFerrous iron (Fe2+) has more potent hydroxyl radical (⋅OH)‐generating ability than other Fenton‐type metal ions, making Fe‐based nanomaterials attractive for chemodynamic therapy (CDT). However, because Fe2+ can be converted by ferritin heavy chain (FHC) to nontoxic ferric form and then sequestered in ferritin, therapeutic outcomes of Fe‐mediated CDT agents are still far from satisfactory. Here we report the synthesis of siRNA‐embedded Fe0 nanoparticles (Fe0‐siRNA NPs) for self‐reinforcing CDT via FHC downregulation. Upon internalization by cancer cells, pH‐responsive Fe0‐siRNA NPs are degraded to release Fe2+ and FHC siRNA in acidic endo/lysosomes with the aid of oxygen (O2). The accompanied O2 depletion causes an intracellular pH decrease, which further promotes the degradation of Fe0‐siRNA NPs. In addition to initiating chemodynamic process, Fe2+‐catalyzed ⋅OH generation facilitates endo/lysosomal escape of siRNA by disrupting the membranes, enabling FHC downregulation‐enhanced CDT.
Regulating the Inner Helmholtz Plane with a High Donor Additive for Efficient Anode Reversibility in Aqueous Zn‐Ion Batteries
Authors: Luo Jinrong , Xu Liang , Zhou Yijing , Yan Tianran , Shao Yanyan , Yang Dongzi , Zhang Liang , Xia Zhou , Wang Tianheng , Zhang Liang , Cheng Tao , Shao Yuanlong 
Published: March 2023

AbstractThe performance of aqueous Zn ion batteries (AZIBs) is highly dependent on inner Helmholtz plane (IHP) chemistry. Notorious parasitic reactions containing hydrogen evolution reactions (HER) and Zn dendrites both originate from abundant free H2O and random Zn deposition inside active IHP. Here, we report a universal high donor number (DN) additive pyridine (Py) with only 1 vol. % addition (Py‐to‐H2O volume ratio), for regulating molecule distribution inside IHP. Density functional theory (DFT) calculations and molecular dynamics (MD) simulation verify that incorporated Py additive could tailor Zn2+ solvation sheath and exclude H2O molecules from IHP effectively, which is in favor of preventing H2O decomposition. Consequently, even at extreme conditions such as high depth of discharge (DOD) of 80 %, the symmetric cell based on Py additive can sustain approximately 500 h long‐term stability. This efficient strategy with high DN additives furnishes a promising direction for designing novel electrolytes and promoting the practical application of AZIBs, despite inevitably introducing trace organic additives.
Facile Synthesis of Metallosalphen‐Based 2D Conductive Metal‐Organic Frameworks for NO2 Sensing: Metal Coordination Induced Planarization
Authors: Su Xi , Zhong Zhiye , Yan Xiaoli , Zhang Ting , Wang Chuanzhe , Wang Yi‐Xuan , Xu Gang , Chen Long 
Published: March 2023

AbstractAs an emerging class of promising porous materials, the development of two‐dimensional conductive metal organic frameworks (2D c‐MOFs) is hampered by the few categories and tedious synthesis of the specific ligands. Herein, we developed a nonplanar hexahydroxyl‐functionalized Salphen ligand (6OH‐Salphen) through a facile two‐step synthesis, which was further applied to construct layered 2D c‐MOFs through in situ one pot synthesis based on the synergistic metal binding effect of the N2O2 pocket of Salphen. Interestingly, the C2v‐symmetry of ligand endows Cu‐Salphen‐MOF with periodically heterogeneous pore structures. Benefitting from the higher metal density and shorter in‐plane metal‐metal distance, Cu‐Salphen‐MOF showcased excellent NO2 sensing performance with good sensitivity, selectivity and reversibility. The current work opens up a new avenue to construct 2D c‐MOF directly from nonplanar ligands, which greatly simplifies the synthesis and provides new possibilities for preparing different topological 2D c‐MOF based functional materials.
Metal Atoms Participate in the Self‐Assembly and On‐Surface Reaction Behaviors of 1,4‐DBN on Ag(111) Surface
Authors: Wang Huimei , Ma Kang , Chen Xi , Hu Zhixin , Sun Zhixiang , Gao Hong‐Ying 
Published: March 2023

AbstractHerein, using 1,4‐dibromonaphthalene (1,4‐DBN) as the precursor molecule and Ag(111) surface as the substrate, we have characterized the various coordination and covalent structures formed by 1,4‐DBN by low‐temperature scanning tunnelling microscopy. We observed that there are three ordered structures (phase I, II, III) and one metal‐organic short‐chain structure (phase IV) at high coverage, meanwhile a new type of chiral structure (phase V) is observed coexisting with phase II, III, IV at low coverage. Surprisingly, all these structures have surface Ag adatoms incorporated. In addition, the phase III should be formed by a dissymmetric dehalogenation reaction of 1,4‐DBN. Furthermore, we showed that the Ullmann coupling and cyclodehydrogenation of 1,4‐DBN to form the armchair‐shaped graphene nanoribbons will occur after thermal annealing. Combining the experiment data and density functional theory simulations, our results show that the surface Ag adatoms play a critical role in both the self‐assembly and the on‐surface reaction.
The Hopeful “Black Birder”: Living Vicariously through Birds
Authors: Pharr Lauren D. , Lanham J. Drew 
Published: March 2023

AbstractNaturalists and ecologists like Charles Darwin, Rachel Carson, and John James Audubon have shaped the foundations of ecology and wildlife; their legacies have influenced the way we see, study, and interact with our natural world. While recognizing these individuals, we also must recognize that the field of ecology traditionally has not been Black and White. A South Carolina native, Joseph Drew Lanham, a Black Man, naturalist, writer, and poet, continues to change this narrative. This new MacArthur Fellow is an ornithologist and bird watcher who chooses to focus intensely on birds as beings, relating their plight to poetry and the human social condition. This is a reflection on Lanham's influence, significance, and perspectives on ecology and society.
Submucosal micropapillary adenocarcinoma of the sigmoid colon: A distinct and aggressive subtype of adenocarcinoma
Authors: Limaiem Faten , Hadrich Zied , Omrani Sahir , Ben Farhat Leila , Hajri Mohamed 
Published: March 2023

AbstractColorectal invasive micropapillary carcinoma (MPC) is a rare and distinct variant of adenocarcinoma with high incidence of lymph node metastasis. The differential diagnoses of MPC include extensive lymphovascular invasion, metastatic MPC, and retraction artifacts.
Highly Efficient Ruthenium‐Catalyzed Semi‐hydrogenation of Urea Derivatives to Formamides
Authors: Zhu Jun , Zhang Yue , Wen Zeyu , Ma Qiyi , Wang Yongtao , Yao Jia , Li Haoran 
Published: March 2023

AbstractThe utilization of CO2as a non‐toxic and cheap feedstock for C1 is a desirable route to achieve high value‐added chemicals. In this context, we report a highly efficient ruthenium‐catalyzed semi‐hydrogenation reaction of CO2‐derived ureas. Various alkyl and aryl urea derivatives were successfully hydrogenated to obtain the corresponding recyclable amines and formamides (up to 97 % yield), highlighting the good substrate applicability of this method, which makes this method a sustainable alternative for the hydrogenation of CO2to formamides in the presence of amines. In the meantime, we have discovered a new pathway that enables rapid hydrogenation of urea derivatives even at lower H2pressure (<5 bar). This methodology might provide a new insight into the reduction functionalization of CO2under mild pressure to form new C−N bond. Based on the control experiments and the observed intermediate products, we clarify the mechanism for selective semi‐hydrogenation of ureas.
Lessons from a soybean collection
Authors: Nelson Randall 
Published: March 2023

AbstractThe United States Department of Agriculture (USDA) Soybean Germplasm Collection was established in 1949. Growth of the collection has been uneven throughout its history. Restrictions on germplasm exchanges and collections will likely prevent rapid growth of the collection in the foreseeable future. Because the USDA Soybean Germplasm Collection has limited opportunities to grow and is well evaluated and characterized for both phenotypic and genotypic traits, it is a mature collection. Mature collections will require fewer resources for acquiring, documenting, evaluating, and characterizing accessions which will permit an emphasis on research that will foster increased utilization. Pure lining accessions of self‐pollinated species is superior for maintaining genetic diversity. Genetic drift, natural selection, and sample contamination are problems for mixed seed lots. We document unintended changes for this type of accession. Mixed seed lots also limit meaningful evaluation. Research is a critical part of effective germplasm curation. We report successful research within the USDA Soybean Germplasm Collection that identified exotic accessions that contributed haplotypes that increase the yield of the highest yielding cultivars and are absent from the commercially used gene pool of the northern United States. Crosses with wild soybean produced lines that yielded more than the soybean parent. We developed procedures to produce fertile progenies from crosses between soybean and Glycine tomentella and identified derived lines that exceeded the yield of the soybean parent. Research on accessions within the National Plant Germplasm system is critical if the preserved germplasm is to be used to its fullest potential.
Electrolyte Engineering Stabilizes Photoanodes Decorated with Molecular Catalysts
Authors: Jenewein Ken J. , Wang Yuanxing , Liu Tianying , McDonald Tara , Zlatar Matej , Kulyk Nadiia , Benavente Llorente Victoria , Kormányos Attila , Wang Dunwei , Cherevko Serhiy 
Published: March 2023

AbstractInvited for this month′s cover is the group of Dunwei Wang from Boston College and Serhiy Cherevko from the Helmholtz Institute Erlangen‐Nürnberg for Renewable Energy. The image illustrates the impact of different electrolyte environments on the stability of hematite decorated with an iridium molecular catalyst used for solar water splitting. The Research Article itself is available at 10.1002/cssc.202202319.
An efficient artificial rabbits optimization‐based user association problems in ultradense network using deep learning model
Authors: M Phemina Selvi , N Shobanadevi 
Published: March 2023

SummaryThe ability of high splitting gain of dense small cells contributed to the rapid establishment of ultradense networks (UDNs). Its higher efficiency to deal with high traffic data demand made UDN a most‐promising technology for the future 5G environment. However, the UDN creates concern about user association, which causes more complexities in providing a high data transmission rate and low latency rate. To tackle these complexities, in this paper, the ambient intelligence exploration multi‐delay deep deterministic policy gradient‐based artificial rabbits optimization (AEMDPG‐ARO) algorithm is proposed for resolving data rate and the issues of latency in the small base station (SBS) and macro base station (MBS) of the wireless sensor network. The complexity in attaining lower latency and higher data rate is achieved through a novel technique AEMDPG‐ARO. The ambient intelligence exploration multi‐delay (AIEM) is combined with deep deterministic policy gradient (DDPG) for overcoming the local optimum and diversity issues of DDPG. The data sample for this study is obtained through the WINNER channel model. The proposed AEMDPG‐ARO algorithm's efficiency is compared to varied state of art methods. The performance evaluation is carried out with regard to network lifetime, end‐to‐end delay, packet delivery ratio, sum rate overall energy consumption, latency, and minimum rate and maximum rate of the network. The proposed AEMDPG‐ARO algorithm gives better performance with reduced time complexity and better metrics rate in the result analysis. The minimum latency achieved by the proposed AEMDPG‐ARO algorithm is about 0.1 s.
Scheduling strategy for networked control system based on variable sampling period and deadband feedback
Authors: Lian Lian 
Published: March 2023

SummaryA scheduling strategy of variable sampling period combined with deadband feedback for networked control system is proposed. Variable sampling period algorithm can allocate a reasonable sampling period to each controlled loop according to the network utilization and packet transmission time. Deadband feedback algorithm can alleviate network congestion by appropriately adjusting the packets in the network when the networked control system cannot be scheduled. According to the actual overload and utilization of the network, the designed scheduling strategy dynamically adjusts the sampling period and priority, and improves the performance of the system combined with deadband feedback. Based on the TrueTime platform, the proposed scheduling strategy is verified on a three controlled loops networked control system with interference nodes and limited network resources. The simulation results demonstrate that the designed scheduling strategy can overcome the uncertainty of the upper bound of network resources, improve output control performance, reduce integral absolute error value of the controlled loop, and shorten the packet transmission time. The overall control performance of the system is improved. The designed scheduling strategy is effective.
A large‐scale field experiment of artificially caused landslides with replications revealed the response of the ground‐dwelling beetle community to landslides
Authors: Furusawa Jumpei , Makoto Kobayashi , Utsumi Shunsuke 
Published: March 2023

AbstractPrecipitation‐induced landslides, which are predicted to increase under the changing climate, may have large impacts on insect community properties. However, understanding of how insect community properties shift following landslides remains limited because replicated research involving landslides, which are large‐scale disturbances with stochastic natural causes, is difficult. To tackle this issue, we conducted a large‐scale field experiment by artificially causing landslides at multiple sites. We established 12 landslide sites, each 35 m × 35 m, and 6 undisturbed sites in both planted and natural forests and collected ground‐dwelling beetles 1 year later. We found that forest type (i.e., pre‐disturbance vegetation) did not affect the structure of a ground‐dwelling beetle community disturbed by a landslide (landslide community), but the structure of an undisturbed community was affected by forest type. Moreover, the structures of landslide and undisturbed communities were completely different, possibly because landslides create harsh environments that act as an ecological filter. Thus, a niche‐selection process may have a critical role in community assembly at landslide sites. There were no significant differences in species diversity between undisturbed and landslide communities, suggesting that landslides to not reduce species richness overall. However, among‐site variability in species composition was much greater at landslide sites than at undisturbed sites. This result suggests that stochastic colonization predominated at the landslide sites more than undisturbed sites. Synthesis and applications. Overall, our results suggest that both deterministic and stochastic processes are critical in community assembly, at least in the early post‐landslide stage. Our large‐scale manipulative field experiment with replications has thus resulted in new insights into biological community properties after a landslide.
Street‐level bureaucrats as policy entrepreneurs and collaborators: Findings from Israel and Germany
Authors: Lahat Lihi , Klenk Tanja , Pitowsky‐Nave Noga 
Published: March 2023

AbstractThis comparative paper adds to the literature by exploring the connection between policy entrepreneurship and collaboration among street‐level bureaucrats (SLBs) in two countries. We asked if SLBs, as policy entrepreneurs, promote collaborative efforts in their work. If so, in what ways? The study was based on qualitative research and in‐depth semistructured interviews with 20 SLBs in social services in Israel and Germany. Our findings suggest that as policy entrepreneurs, SLBs use diverse ways of working together, and a higher level of policy change demands a higher level of collaboration. We offer three generic types of SLB policy entrepreneurs: collaborative policy entrepreneurs, collaborative‐coordinator policy entrepreneurs, and coordinator‐cooperative entrepreneurs. We suggest administrative cultures and policy styles may shed light on the presence of types of SLB policy entrepreneurs.
Megadroughts Pose Mega-Risk to Native Fishes of the American Southwest
Authors: Gido Keith B , Osborne Megan J , Propst David L , Turner Thomas F , Olden Julian D 
Published: March 2023

Abstract
Climate change and a host of other human stressors on aquatic systems in the American Southwest are rapidly exceeding our ability to conserve native fish diversity. The most severe megadrought in over a millennium has compromised current management plans by exacerbating the impacts of altered hydrology, poor water quality, invasive species, and habitat fragmentation. Drought legacies are of particular concern, and existing conservation actions may not be sufficient to maintain resilient native fish populations, particularly if this drought persists. We draw examples from current literature and empirical research to support our contention that more resources and novel approaches to prioritizing environmental flows, improving ecological connectivity of populations, preventing and controlling invasive species, and establishing refuge populations are necessary to stave off extinctions. Moreover, shifts in socio-political attitudes that better recognize environmental concerns must be integrated into water resource policy and management to achieve native fish conservation goals.