bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fluid Mechanics
Authors: Radev St. , Onofri F. R. A. , Lenoble A. , Tadrist L. 
Published: July 2013

Abstract
The paper review key results [1-14] of the joint researches conducted by IMech and IUSTI. In the First part, we review models and experimental results on the linear and nonlinear instability of a capillary jet including both axisymmetric and nonaxisymmetric disturbances. In the Second part, results on draw resonances, occurring during a glass fibre process are reviewed, as well as the unique optical models and methods developed to perform these studies.
The effect of fractionality nature in differences between computer simulation and experimental results of a chaotic circuit
Authors: Faraji Salman , Tavazoei Mohammad 
Published: July 2013

AbstractIn practice, some differences are usually observed between computer simulation and experimental results of a chaotic circuit. In this paper, it is tried to obtain computer simulation results having more correlation with those obtained in practice by using more realistic models for chaotic circuits. This goal is achieved by considering the fractionality nature of electrical capacitors in the model of a chaotic circuit.
Prognosis and Course of Disability in Patients With Chronic Nonspecific Low Back Pain: A 5- and 12-Month Follow-up Cohort Study
Authors: Verkerk Karin , Luijsterburg Pim A.J. , Heymans Martijn W. , Ronchetti Inge , Pool-Goudzwaard Annelies L. , Miedema Harald S. , Koes Bart W. 
Published: July 2013

Background
Few data are available on the course of and predictors for disability in patients with chronic nonspecific low back pain (CNSLBP).

Objective
The purpose of this study was to describe the course of disability and identify clinically important prognostic factors of low-back-pain–specific disability in patients with CNSLBP receiving multidisciplinary therapy.

Design
A prospective cohort study was conducted.

Methods
A total of 1,760 patients with CNSLBP who received multidisciplinary therapy were evaluated for their course of disability and prognostic factors at baseline and at 2-, 5-, and 12-month follow-ups. Recovery was defined as 30% reduction in low back pain–specific disability at follow-up compared with baseline and as absolute recovery if the score on the Quebec Back Pain Disability Scale (QBPDS) was ≤20 points at follow-up. Potential prognostic factors were identified using multivariable logistic regression analysis.

Results
Mean patient-reported disability scores on the QBPDS ranged from 51.7 (SD=15.6) at baseline to 31.7 (SD=15.2), 31.1 (SD=18.2), and 29.1 (SD=20.0) at 2, 5, and 12 months, respectively. The prognostic factors identified for recovery at 5 and 12 months were younger age and high scores on disability and on the 36-Item Short-Form Health Survey (SF-36) (Physical and Mental Component Summaries) at baseline. In addition, at 5-month follow-up, a shorter duration of complaints was a positive predictor, and having no comorbidity and less pain at baseline were additional predictors at 12-month follow-up.

Limitations
Missing values at 5- and 12-month follow-ups were 11.1% and 45.2%, respectively.

Conclusion
After multidisciplinary treatment, the course of disability in patients with CNSLBP continued to decline over a 12-month period. At 5- and 12-month follow-ups, prognostic factors were identified for a clinically relevant decrease in disability scores on the QBPDS.
Ice flow dynamics and surface meltwater flux at a land-terminating sector of the Greenland ice sheet
Authors: Fitzpatrick Andrew A.W. , Hubbard Alun , Joughin Ian , Quincey Duncan J. , As Dirk Van , Mikkelsen Andreas P.B. , Doyle Samuel H. , Hasholt Bent , Jones Glenn A. 
Published: July 2013

AbstractWe present satellite-derived velocity patterns for the two contrasting melt seasons of 2009–10 across Russell Glacier catchment, a western, land-terminating sector of the Greenland ice sheet which encompasses the K(angerlussuaq)-transect. Results highlight great spatial heterogeneity in flow, indicating that structural controls such as bedrock geometry govern ice discharge into individual outlet troughs. Results also reveal strong seasonal flow variability extending 57 km up-glacier to 1200 m elevation, with the largest acceleration (100% over 11 days) occurring within 10 km of the margin coincident with spring melt. By late July 2010, 2 weeks before peak melt and runoff, 48 % of the 2400 km2 catchment had slowed to less than the winter mean. This observation supports the hypothesis that the subglacial hydrological system evolves from an inefficient distributed to an efficient drainage system, regulating flow dynamics. Despite this, the cumulative surface flux over the record melt year of 2010 was still greater compared with the perturbation over the average melt year of 2009. This study supports the proposition that local surface meltwater runoff couples to basal hydrology driving ice-sheet dynamics, and although the effect is nonlinear, our observations indicate that greater meltwater runoff yields increased net flux over this sector of the ice sheet.
Le problème du logement et l'activité de la construction en Allemagne occidentale depuis 1945
Authors: Sebastiani Charles 
Published: July 2013

Près de 3,5 millions de logements construits depuis 1945, tel est le résultat atteint par les plans de construction d'habitations du gouvernement fédéral.
Bien que l'on puisse élever quelques objections quant aux méthodes choisies et la qualité de certaines constructions, il n'en reste pas moins qu'un tel résultat est remarquable, d'autant plus qu'il a été obtenu parallèlement à la reconstitution du potentiel économique.
Le niveau économique du bassin méditerranéen
Authors: Hérouville Hubert d' 
Published: July 2013

II est beaucoup question, à notre époque, de la mise en valeur des régions insuffisamment développées. Parmi celles-ci, le bassin méditerranéen intéresse particulièrement les Européens, parce qu'il est lié étroitement à leur histoire et à leur espace économique. Cet ensemble est cependant loin d'être uniforme, les différences étant prononcées, notamment entre les rives nord et sud du bassin.
Pour tous les pays intéressés — leur nombre dépasse la quinzaine — il existe des plans de développement dont la réalisation est plus ou moins avancée. L'exposé de ces programmes (d'ailleurs en perpétuel remaniement) est effectué en détail dans les publications des Nations-Unies, et il a semblé inutile de les reprendre. Il a paru digne d'intérêt, par contre, et d'actualité, de résumer en un document unique, d'esprit comparatif et recourant aux statistiques, les principales causes et les caractères de la pauvreté des pays méditerranéens, ainsi que les principes généraux qui conditionnent leur mise en valeur, le rythme de celle-ci et ses possibilités.
Realized climatic niche of North American plant taxa lagged behind climate during the end of the Pleistocene
Authors: Ordonez Alejandro 
Published: July 2013

• Premise of the study: Predicting species responses to climate change has become a dynamic field in global change research. A crucial question in this debate is whether‐or‐not species have been and will be able to respond quickly enough to keep up with changing climatic conditions.• Methods: Focusing on fossil pollen records and paleoclimatic simulations, this work assesses the change in realized climatic niches (climatic temporal trajectories) of 20 plant taxa over the last 16000 yr, and whether this tracking has been the same for different climatic niche dimensions.• Key results: Climatic factors showed a consistent trend toward warmer temperatures and higher precipitation. Although the response types varied across taxa, species’ realized climatic niches lagged in response to changes in climatic conditions. Temperature niches responded to late Pleistocene (16000–11000 yr ago) climate change, but did so at slower rates than changes in climatic conditions during the same period. In contrast, precipitation niches were relatively stable from 16000 to 11000 yr ago, but still lagged behind changes in climatic conditions. Changes in temperature and precipitation niches eventually stabilized during the Holocene (11000–1000 yr ago).• Conclusions: These results underscore how the climatic niche realized at any one moment represents a subset of the climate conditions in which a taxon can persist, particularly during times of fast climatic change. Variability in the rates of temporal trajectories across evaluated climatic variables showed taxa specific responses to changes in climatic conditions over time and emphasizes the need to incorporate variation, intensity, and duration of lag effects in assessments of the possible effects of climatic change.
High Endothelial Venule Blood Vessels for Tumor-Infiltrating Lymphocytes Are Associated with Lymphotoxin β–Producing Dendritic Cells in Human Breast Cancer
Authors: Martinet Ludovic , Filleron Thomas , Le Guellec Sophie , Rochaix Philippe , Garrido Ignacio , Girard Jean-Philippe 
Published: July 2013

Abstract
Blood vessels and tumor angiogenesis are generally associated with tumor growth and poor clinical outcome of cancer patients. However, we recently discovered that some blood vessels present within the tumor microenvironment can be associated with favorable prognosis. These vessels, designated tumor high endothelial venules (HEVs), appear to facilitate tumor destruction by allowing high levels of lymphocyte infiltration into tumors. In this study, we investigated the mechanisms regulating HEV blood vessels in human breast cancer. We found that lymphotoxin β was overexpressed in tumors containing high densities of HEVs (HEVhigh) and correlated to DC-LAMP, a marker of mature DCs. DCs were the main producers of lymphotoxin β in freshly resected HEVhigh breast tumor samples, and the density of DC-LAMP+ DCs clusters was strongly correlated with the density of tumor HEVs, T and B cell infiltration, and favorable clinical outcome in a retrospective cohort of 146 primary invasive breast cancer patients. Densities of tumor HEVs and DC-LAMP+ DCs were strongly reduced during breast cancer progression from in situ carcinoma to invasive carcinoma, suggesting that loss of tumor HEVs is a critical step during breast cancer progression. Finally, an increase in the infiltration of regulatory T cells was observed in HEVhigh breast tumors, indicating that tumor HEVs can develop in the presence of regulatory T cells. Together, our results support a key role for DCs and DC-derived lymphotoxin in the formation of tumor HEVs. These findings are important because novel therapeutic strategies based on the modulation of tumor HEVs could have a major impact on clinical outcome of cancer patients.
Immune Regulation in Obesity-Associated Adipose Inflammation
Authors: Han Jonathan M. , Levings Megan K. 
Published: July 2013

Abstract
Adipose tissue inflammation is often a consequence of obesity and is characterized by infiltration and activation of immune cells that overproduce cytokines and chemokines. This apparent loss of immune regulation in obese adipose tissue contributes to the ongoing chronic inflammation that is thought to promote the degradation of metabolic parameters in obesity. Much recent work has sought to identify the immune cell subsets that are involved in adipose tissue inflammation, understand the mechanisms by which adipose tissue inflammation develops, and develop immunotherapeutic strategies to reverse this process. In this review, we describe the known mechanisms that underlie the loss of immune regulation in obesity-associated adipose tissue inflammation and set the stage for the development of novel therapeutic approaches.
A Short Note on Short Pants
Authors: Parlier Hugo 
Published: July 2013

AbstractIt is a theorem of Bers that any closed hyperbolic surface admits a pants decomposition consisting of curves of bounded length where the bound only depends on the topology of the surface. The question of the quantification of the optimal constants has been well studied, and the best upper bounds to date are linear in genus, due to a theorem of Buser and Seppälä. The goal of this note is to give a short proof of a linear upper bound that slightly improves the best known bound.
Coordination Number Regulation of Iron Single‐Atom Nanozyme for Enhancing H2O2 Activation and Selectively Eliminating Cephalosporin Antibiotics
Authors: Wang Jie , Zhang Jijie , Guo Kangying , Yue Qinyan , Yin Kexin , Xu Xing , Li Yanwei , Gao Yue , Gao Baoyu 
Published: July 2024

AbstractNanozymes present promising alternatives to natural enzymes, but controlling nanozymes' performance and employing them for selectively removing antibiotics are extremely challenging. Employing theoretical calculations to design the coordination environments of mental and coordination atoms for directing single‐atom nanozymes synthesis emerges as a promising strategy to enhance their efficiency and selectivity in antibiotic elimination. In this study, the peroxidase‐like specificity of iron single‐atom nanozymes (FeSA‐Nx, x = 2,3, and 4) with specific Fe–N coordination numbers is demonstrated based on theoretical calculations. These calculations guide the synthesis of corresponding ultra‐thin FeSA‐Nx, achieving a high degree of consistency between theoretical predictions and experimental results. FeSA‐N3 with a Fe─N3 coordination number proves to be the most effective. The efficient electron transfer from Fe─N3 site to H2O2 reduces the free energy required for •OH generation. Quantitative structure‐activity relationship (QSAR) analysis reveals a strong positive correlation between degradation efficiency of cephalosporins and their electron‐donating capabilities (R2 = 0.820–0.929), realizing selectively eliminating cephalosporins. Integration FeSA‐N3 into ceramic membrane (FeSA‐N3/CM) improves hydrophilicity, achieving continuous and stable removal of cephalosporin. This study provides valuable insights into coordination number regulating nanozyme properties for selective antibiotics removal and offers novel perspectives for FeSA‐N3 application in integrated systems.
Sequential Ion Induced Multilength‐Scale Structurally Fibers with Strain‐Stiffening, High Damping, and Shape‐Memory Features
Authors: Zhang Wenjie , Wang Penghui , Hu Yi , Chen Qiang , Chi Bo 
Published: July 2024

AbstractNatural materials possess inherent multilength‐scale structures, showcasing outstanding mechanical properties such as strain‐stiffening, high damping, and shape‐memory features under ambient conditions. Such integrated properties are highly desirable for advanced materials in biomedical devices and soft robots but remain challenging in synthetic materials. Herein, a novel strategy of sequential ion treatment is employed to introduce micro/nanoscale‐ordered structures and molecular‐scale stimulus responses into hydrogel‐derived self‐assembly fibers under ambient conditions. The treated fibers exhibit strain‐stiffening properties with a high toughness of 257 MJ m−3 and 73% damping capacity comparable to spider silk. Owing to their cross‐linking network and reversible secondary structure, those fibers exhibit outstanding water‐stability, wet stretchability, and hydration‐responsive shape‐memory performance, with ultimate elongation of 407%, shape‐fixity ratio of 94%, and shape‐recovery rate of 97%. This work furthers the green fabrication of smart materials with multifunction and presents promising applications in diverse fields, including biomimetics and biomedicine.
A Multi‐Active Site Subnano Heterostructures Catalyst Grown In situ POM and Fe0.2Ni0.8Co2O4 onto Nickel Foam Toward Efficient Electrocatalytic Overall Water Splitting
Authors: Cui Li‐ping , Wang Yu‐wen , Yu Kai , Ma Ya‐jie , Zhou Bai‐bin 
Published: July 2024

AbstractDesigning efficient, durable, and cheap bifunctional electrocatalysts is a challenging goal in water splitting. Herein, trivanadium‐substituted Keggin‐type polyoxometalate H6PV3Mo9O40 (POM) and Fe0.2Ni0.8Co2O4 (FNCO) are in situ grown onto nickel foam (NF) yielding a self‐supporting nanoflower‐like heterojunction via convenient hydrothermal reaction. The POM‐Fe0.2Ni0.8Co2O4/NF as HER and OER electrocatalyst, displays low overpotential (89 and 259 mV) and high electrode stability at 10 mA cm−2. POM‐FNCO/NF as the cathode and anode requires a lower voltage (1.58 V) to provide 10 mA cm−2 for overall water splitting (OWS), which is better than that of commercial catalysts. The electronic sponge characteristics of POM provide more active sites and fast reaction kinetics for HER and OER. The synergy of POM and FNCO optimizes the electron distribution at the interface and enhances the intrinsic activity of HER/OER. Density Functional Theory (DFT) calculations show that water molecules preferentially bind to Co sites on POM‐FNCO. Additionally, POM has proton‐coupled electron transfer properties and its modified FNCO exhibits thermodynamic advantages. The synergistic effect of these two factors enables the efficient overall water splitting of POM‐FNCO. This study offers a novel pathway for the construction of self‐supporting efficient catalysts by in situ growth of POM nanoclusters and spinel oxide sub‐nanometer heterojunctions on NF.
π‐d Conjugated Copper Chloranilate with Distorted Cu‐O4 Site for Efficient Electrocatalytic Ammonia Production
Authors: Xing Chengyong , Ren Jiali , Fan Longlong , Zhang Jincheng , Ma Min , Wu Shaowen , Liu Zhanning , Tian Jian 
Published: July 2024

AbstractUnderstanding the relationship between electrocatalytic performance and local structure at the molecular level is of great significance. Herein, a bifunctional electrocatalyst CuCA (CA = chloranilate) is constructed for both nitrogen reduction reaction (NRR) and nitrate reduction reaction (NO3RR). Combined structural analyses using Rietveld refinement, extended X‐ray adsorption fine structure (EXAFS), and pair distribution function (PDF) revealed a significant distortion of the Cu‐O4 structure. Benefitting from the unique local structure, Cu‐CA shows an impressive NH3 yield rate of 286.00 ug h−1 mg−1 (FE = 18.25%, ‐0.85 V vs RHE), 3180.00 ug h−1 mg−1 (FE = 90.3%, ‐0.9 V vs RHE) for NRR and NO3RR, respectively. In contrast, the pyrazine (Pyz) decorated compound Cu‐CA‐Pyz with a less distorted Cu‐O4 structure and fewer active sites show much lower activity. Density functional theory (DFT) calculations shed light on that the distorted nature can effectively regulate the electron density distribution, which can lower the energy barrier of adsorption and activation of the intermediate species, leading to the enhanced activity. These findings may give new insight into the structural‐property relationship and open up opportunities for the exploration of efficient electrocatalysts.
Thermally Activated Delayed Fluorescence (TADF) Materials Based on Earth‐Abundant Transition Metal Complexes: Synthesis, Design and Applications
Authors: Ferraro Valentina , Bizzarri Claudia , Bräse Stefan 
Published: July 2024

AbstractMaterials exhibiting thermally activated delayed fluorescence (TADF) based on transition metal complexes are currently gathering significant attention due to their technological potential. Their application extends beyond optoelectronics, in particular organic light‐emitting diodes (OLEDs) and light‐emitting electrochemical cells (LECs), and include also photocatalysis, sensing, and X‐ray scintillators. From the perspective of sustainability, earth‐abundant metal centers are preferred to rarer second‐ and third‐transition series elements, thus determining a reduction in costs and toxicity but without compromising the overall performances. This review offers an overview of earth‐abundant transition metal complexes exhibiting TADF and their application as photoconversion materials. Particular attention is devoted to the types of ligands employed, helping in the design of novel systems with enhanced TADF properties.
V–Catalyzed Direct Ortho‐Aminomethylation of Phenols
Authors: Yang Pei , Fan Weiwei , Pan Chenlu , Huang Huimin , Zhang Huaxin , Li Liwei 
Published: July 2024

AbstractA strategy for cross‐dehydrogenative C(sp2)‐C(sp3) coupling was developed by direct and highly selective V‐catalyzed ortho‐aminomethylation of phenol with aniline derivatives. A series of aminomethylphenol compounds were obtained in moderate to good yields under mild reaction conditions and with a broad substrate scope. A possible radical mechanism was proposed, and it was found that the coordination of phenolic hydroxyl groups with V5+ was crucial for the effective activation of the ortho position.
Pseudopus pannonicus (Squamata), the largest known anguid lizard—Redescription of the type material and new specimens from the Neogene and Quaternary of Hungary and Poland
Authors: Loréal Erwan , Georgalis Georgios L. , Čerňanský Andrej 
Published: July 2024

AbstractHerein, we revise the material of the extinct taxon Pseudopus pannonicus from Central Europe, the largest known anguid lizard and iconic member of herpetofaunas from the Upper Cenozoic of Europe. The geographical position of Polgárdi 2, the type locality of P. pannonicus, as well as several other closely located important localities make Central Europe a valuable area of high interest for studies regarding European Cenozoic palaeoherpetological assemblages. We clarified the nature of the type material of Pseudopus pannonicus, showing that it consisted not only of the five specimens originally figured. Instead, the syntype series also includes a considerable number of specimens from Polgárdi 2 that were only described or figured 12 years after the original description of P. pannonicus. Detailed osteological descriptions are provided for specimens from the type series and Polish specimens, with the aid of high‐resolution imaging (SEM and μCT scanning), and intraspecific variability is discussed. The articular surface with the lappet of the parietal overlapping the frontal is discussed as a character potentially relevant for the diagnosis of P. pannonicus. We updated the identification of several specimens of P. pannonicus and discussed the biogeographic implications of such revisions. In Poland, P. pannonicus is an abundant component of Neogene and early Quaternary herpetofaunas, known with certainty from the Middle Miocene of Przeworno (the oldest known occurrence of the species globally), the Early–Late Pliocene of Węże I, the Late Pliocene of Rębielice Królewskie I, the Late Pliocene of Węże II, and the Early Pleistocene of Kadzielnia (one of the youngest occurrences documented globally). An indeterminate anguine with Anguis affinities is newly reported from Rębielice Królewskie II. The taxonomic status of other large anguids from the Neogene of Europe is discussed and we conclude that most are junior synonyms of P. pannonicus. We also show that another purported synonym, that is, Ophisaurus intermedius from the Early Pleistocene of Romania, is instead a nomen nudum. We conducted phylogenetic analyses (18 taxa, 65 characters) to understand the relationship of P. pannonicus relative to other anguid representatives and anguid‐related group (i.e., glyptosaurids). A single most parsimonious tree (length: 134 steps) was recovered. The clade Pseudopus is stable, comprising the two distinct sister subclades [Pseudopus laurillardi + Pseudopus ahnikoviensis] and [Pseudopus pannonicus + Pseudopus apodus]. These phylogenetic results are in accordance with previously published works.