bluuebunny/crossref_metadata_2025_split huggingface dataset:
Privacy implications of database ranking
Authors: Rahman Md Farhadur , Liu Weimo , Thirumuruganathan Saravanan , Zhang Nan , Das Gautam 
Published: July 2015

In recent years, there has been much research in the adoption of Ranked Retrieval model (in addition to the Boolean retrieval model) in structured databases, especially those in a client-server environment (e.g., web databases). With this model, a search query returns top-
k
tuples according to not just exact matches of selection conditions, but a suitable ranking function. While much research has gone into the design of ranking functions and the efficient processing of top-
k
queries, this paper studies a novel problem on the
privacy implications
of database ranking.

The motivation is a novel yet serious privacy leakage we found on real-world web databases which is caused by the ranking function design. Many such databases feature private attributes - e.g., a social network allows users to specify certain attributes as only visible to him/herself, but not to others. While these websites generally respect the privacy settings by not directly displaying private attribute values in search query answers, many of them nevertheless take into account such private attributes in the ranking function design. The conventional belief might be that tuple ranks alone are not enough to reveal the private attribute values. Our investigation, however, shows that this is not the case in reality.
To address the problem, we introduce a taxonomy of the problem space with two dimensions, (1) the type of query interface and (2) the capability of adversaries. For each subspace, we develop a novel technique which either guarantees the successful inference of private attributes, or does so for a significant portion of real-world tuples. We demonstrate the effectiveness and efficiency of our techniques through theoretical analysis, extensive experiments over real-world datasets, as well as successful online attacks over websites with tens to hundreds of millions of users - e.g., Amazon Goodreads and Renren.com.
Microstructural Properties and Four-Point Bend Fatigue Behavior of Ti-6.5Al-2Zr-1Mo-1V Welded Joints by Electron Beam Welding
Authors: Liu Peng , Zhai T. , Zhang Yuanbin 
Published: July 2015

Abstract
With the help of a four-point-bend of fatigue rig, high-cycle fatigue tests were carried out on an Ti–6.5Al–2Zr-1Mo-1V titanium alloy at room temperature, 20 Hz and R = 0.1 in ambient air. The test results indicated that the fatigue strength of base metal, 888 MPa, is about 120% of yield strength. The fatigue strength of joints is 814 MPa. It is about 110% of yield strength of base metal. When the loading stress is higher, the fatigue failure region is located in middle weld zone of weld face, which the cracks are propagated along coarse β phase’s grain boundary. When the loading stress is lower, the fatigue failure region is located between the incomplete recrystallization zone and base metal. The crack nucleation resistance gradually increases from the WN to HAZ with the variable of loading stress and β phase (little α′ phases)→ α + β phase→ α phase.
Pilot study on the dietary habits and lifestyles of girls with idiopathic precocious puberty from the city of Rome: potential impact of exposure to flame retardant polybrominated diphenyl ethers
Authors: Tassinari Roberta , Mancini Francesca R. , Mantovani Alberto , Busani Luca , Maranghi Francesca 
Published: July 2015

Abstract
Puberty is regulated by the endocrine system, which when disrupted can affect reproductive health. Endocrine disrupters (ED) are involved in the pathogenesis of idiopathic central precocious puberty (ICPP). Polybrominated diphenyl ethers (PBDE) are lipophilic, persistent ED used as flame retardants in several products; thus, human population is exposed through food and domestic dust. PBDE exposure during the peripubertal period is suspected to interfere with reproductive development. The study aimed to investigate PBDE serum concentration in 31 girls with ICPP as well as describe their dietary habits and lifestyles. The PBDE median level was 59 ng/g of lipids, higher than in healthy girls in comparable studies. Interestingly, elder girls and girls with higher body mass index (BMI) showed higher PBDE serum levels. Considering the relevance of altered puberty onset as a risk factor for reproductive health, studies on food contribution to PBDE exposure in Italian children, and efforts to ameliorate risk assessment for emerging chemicals are suggested.
Sickness absence among young employees: trends from 2002 to 2013
Authors: Sumanen Hilla , Pietiläinen Olli , Lahti Jouni , Lahelma Eero , Rahkonen Ossi 
Published: July 2015

Sickness absence among young employees: trends from 2002 to 2013: Hilla Sumanen, et al. Department of Public Health, University of Helsinki, FinlandObjectiveYoung adults entering employment are a key group in extending work careers, but there is a lack of research on trends in work ability among young employees. Prolonged sickness absence (SA) constitutes a risk for permanent work disability. We examined 12‐year trends in SA spells among young female and male municipal employees.MethodsThe data were obtained from the employers’ registers in the City of Helsinki, Finland. The data included employees aged 18−24, 25−29, 30−34, and 35−54 from 2002 to 2013 (the average number for each year was 31,600). Self‐certified (1−3 days) and medically certified intermediate (4−14 days) and long (15+ days) SAs were examined. Joinpoint regression models were used to identify major changes in SA trends.ResultsYounger employees had more short SAs but fewer long SAs than older employees. During the study period, SAs of almost any length first increased and later decreased among both genders, except for young men. The turning points for short SA were in 2007−2011 among younger and older employees. In intermediate and long SAs the respective turning points were in 2008−2009 and 2005−2009. Women had more SAs in all categories.ConclusionsAge is related to the length of absences. Given the relatively low chronic morbidity among younger employees, it is likely that reasons other than ill health account for increased SA. More evidence on factors behind the changing trends is needed in order to reduce SA and extend the working careers of young people.
La estructura empresarial mexicana de 2003 a 2008: hacia la cuarta década perdida
Authors: Núñez R. Gaspar 
Published: July 2015

En este artículo analizamos, utilizando la información de los Censos Económicos 2004 y 2009, la estructura empresarial de México y su desempeño en los años 2003 y 2008. El principal hallazgo es que la ya de por sí pobre estructura empresarial existente en 2003, presenta un deterioro aún mayor en 2008. El análisis detallado de las variables relevantes para el desempeño y potencial desarrollo de la economía, confirma que la década 2001-2010 efectivamente puede caracterizarse como “la tercera década perdida”, y que la situación actual de la estructura empresarial imposibilita un desarrollo socioeconómico significativo para la década 2011-2020. Los resultados también confirman una de las principales hipótesis de la literatura actual: que el estancamiento económico tiene como una de sus principales causas directas o inmediatas, la insuficiente inversión en capital físico. AbstractThis research examines Mexican firm structure and performance during the years 2003 and 2008, using data from the 2004 and 2009 Economic Census. We find that the poor firm structure of year 2003 is even worst in 2008. Detailed analysis of variables relevant for economic performance and future development, confirms that the period 2001-2010 was indeed a third lost decade, and that the current firm structure makes it impossible to achieve a meaningful economic development for the 2011-2020 decade. Results also confirm one of the main thesis in current literature, namely, that lack of investment in physical capital is one of the main causes of economy stagnation.
Sensitivity‐Based Calibration of the Soil and Water Assessment Tool for Hydrologic Cycle Simulation in the Cong Watershed, Vietnam
Authors: Anh Nguyen Viet , Fukuda Shinji , Hiramatsu Kazuaki , Harada Masayoshi 
Published: July 2015

ABSTRACT: For better water resources management in quality and quantity, an accurate model is needed for simulating the hydrologic cycle and water quality dynamics at a watershed scale. In this study, a semi‐distributed hydrologic model, the Soil and Water Assessment Tool (SWAT), was applied for hydrologic cycle assessment in the Cong Watershed, Vietnam. After model‐output and accuracy‐based sensitivity analyses were conducted without and with observation data, respectively, model parameters were calibrated and validated using meteorological and runoff data observed between 1961 and 1975. Model performance in annual, monthly, and daily flow simulations was assessed using the Nash–Sutcliffe Efficiency coefficient and the coefficient of determination (R2). As a result, the accuracy‐based sensitivity analysis better identified the key parameters, as compared to the model output‐based sensitivity analysis, resulting in better flow simulations in the Cong River. The calibrated model performed well in hydrologic cycle simulations in the Cong Watershed, suggesting the applicability of the SWAT model.
Immersed Boundary – Thermal Lattice Boltzmann Methods for Non-Newtonian Flows Over a Heated Cylinder: A Comparative Study
Authors: Delouei A. Amiri , Nazari M. , Kayhani M. H. , Succi S. 
Published: July 2015

AbstractIn this study, we compare different diffuse and sharp interface schemes of direct-forcing immersed boundary — thermal lattice Boltzmann method (IB-TLBM) for non-Newtonian flow over a heated circular cylinder. Both effects of the discrete lattice and the body force on the momentum and energy equations are considered, by applying the split-forcing Lattice Boltzmann equations. A new technique based on predetermined parameters of direct forcing IB-TLBM is presented for computing the Nusselt number. The study covers both steady and unsteady regimes (20<Re<80) in the power-law index range of 0.6<n<1.4, encompassing both shear-thinning and shear-thickening non-Newtonian fluids. The numerical scheme, hydrodynamic approach and thermal parameters of different interface schemes are compared in both steady and unsteady cases. It is found that the sharp interface scheme is a suitable and possibly competitive method for thermal-IBM in terms of accuracy and computational cost.
Redesigning Poverty Alleviation Organization in Kendari
Authors: Brata Joko Tri 
Published: July 2015

Poverty is a classical problem which needs organizational redesign in order to refresh, and renew the organization. This can be done by optimizing resources unification in each organization through innovation of organizational management and functions and renewal of the values shaping bureaucrats (referred to by Jokowi as Mental Revolution). This research aims at describing institutional model application and applying new institutional model (redesign) for the sustainability of poverty alleviation policy in Kendari. This is a qualitative research with experimental approach using developmental research pattern. The research describes that the application of institutional model in poverty alleviation in Kendari which is integrated in TKPKD is merely formal institutional setting and is assumed to have conventional framework. The attempt of applying organizational new design of poverty alleviation can be done by preparing the organization through institutional model improvement by optimizing the potentials of program correlated fields.
UM CASO ILUSTRANDO A RELAÇÃO ENTRE SÍNDROME DE SWEET E LÚPUS ERITEMATOSO SISTÊMICO
Authors: Oliveira Marina Camara , Trevisan Flávia , Werner Betina , Crescente Graziela , Santamaria Jesus Rodriguez 
Published: July 2015

Objetivo: As dermatoses neutrofílicas são manifestações raras nos casos de lúpus eritematoso sistêmico (LES), sendo mais comum seu surgimento em pacientes com diagnóstico prévioj. O objetivo deste artigo é ilustrar um caso de síndrome de Sweet em uma paciente portadora de LES. Métodos: Relato de caso com base em dados de prontuário e consultas médicas, ilustrado com imagens fotográficas, no qual os autores discutem os possíveis diagnósticos diferenciais e apresentam breve revisão da literatura, com busca no acervo do PubMed a partir das palavras correlacionadas lúpus eritematoso + síndrome de Sweet. Resultados: O trabalho relata o caso de uma mulher previamente diagnosticada e em tratamento para lúpus eritematoso sistêmico que manifestou episódios recorrentes da síndrome de Sweet. Conclusão:A síndrome de Sweet, ou dermatose neutrofílica febril, se caracteriza por lesões eritematosas, dolorosas e agudas, principalmente em áreas fotoexpostas, mas que também pode ter manifestações extra-cutâneas e mucosa. É dividida em quatro subgrupos: clássica, para-inflamatória, paraneoplásica e farmacológica. Este artigo relata um caso de paciente com lúpus eritematoso associado a síndrome de Sweet.
Caracterização Espacial da Pobreza no estado da Bahia
Authors: Santos Eli Izidro dos , Carvalho Ícaro Célio Santos de , Barreto Ricardo Candéa Sá 
Published: July 2015

O Objetivo do trabalho é fazer uma caracterização da pobreza no Estado da Bahia. Para tanto lança mão de ferramentas de análise espacial, permitindo estudar os mais diversos cenários geográficos, com rapidez e eficiência na tomada de decisão, tanto das empresas como dos governos, e na implementação de políticas públicas de intervenção mais eficazes de combate à pobreza, pois o estudo apresenta um olhar multidimensional dessa problemática. Utiliza-se o Índice Municipal de Pobreza (IMP) e o ranking do Índice de Desenvolvimento Humano Municipal (IDHM). Os resultados encontrados indicam que o IMP é um índice eficiente para estudo da pobreza espacial no estado da Bahia.
Improving animal welfare standards while reducing disease exposure risk during euthanasia of trapped brushtail possums (Trichosurus vulpecula)
Authors: Rouco C , Richardson KS , Tompkins DM 
Published: July 2015

AbstractIn New Zealand there is a long history of research studies working with wild free-living brushtail possums (Trichosurus vulpecula) where euthanasia of large numbers of animals is frequently required. The most commonly used method for euthanising trapped possums is by blunt-force trauma. If possums being euthanised are potentially infected with bovine tuberculosis (TB), however, the blunt-force trauma method is associated with risks of researcher exposure to TB infection (eg risk of being scratched, bitten or blood-splattered). Here, we trial the use of a close-range shot to the head with a high-velocity air rifle as an alternative method for the euthanasia of cage-trapped possums. Our trial revealed that the air rifle method reduced the potential disease exposure risks to researchers by minimising blood-spatter area, and by completely avoiding the likelihood of both accidents due to animal handling and animal escapes. While both methods induced immediate unconsciousness leading to death, the air rifle method was quicker (ie shorter conscious handling and total time) and arguably had better animal welfare performance by significantly reducing the time to unconsciousness. Thus, we conclude that the air rifle method is suitably humane for possum euthanasia and should be considered when dealing with potentially TB-infected cage-trapped possums.
Construction of a Curcumin‐Loaded PLLA/PCL Micro‐Nano Conjugated Fibrous Membrane to Synergistically Prevent Postoperative Adhesion From Multiple Perspectives
Authors: Liao Jie , Li Xiaoming , Yang Huiqi , He Wei , Wang Bingbing , Liu Shuyu , Fan Yubo 
Published: August 2024

AbstractPostoperative adhesion (POA) has emerged as a prevalent clinical challenge in soft tissue repair, emphasizing the critical need for preventive measures. However, the complex POA development process makes POA prevention from a single aspect insufficient. Hence, a curcumin‐loaded poly‐L‐lactic acid‐poly (caprolactone) micro‐nano conjugated fibrous membrane (PAPC MCFM (cur)) is engineered to synergistically prevent POA from multiple perspectives, in which poly (caprolactone) (PCL) nanofibers (118 ± 12 nm) with low orientation traverse the oriented poly‐L‐lactic acid (PLLA) microfibers (2.0 ± 0.3 µm). The PAPC MCFM not only significantly improves the mechanical properties of the anisotropic fibrous membrane (AIFM) that the modulus of elasticity and the tensile strength in the direction vertical to microfiber orientation increase by 4.5 and 13.0 times, respectively, but also can further enhance the “contact guidance effect” of AIFM, i.e., hindering fibroblast adhesion, proliferation, and differentiation to myofibroblast through inhibiting integrin β1 activation, vinculin expression and focal adhesion (FA) formation, and the nuclear localization activation of yes‐associated protein (YAP). Except for these effects, PAPC MCFM loading with 2.5 mg mL−1 curcumin can further prevent POA by delivering anti‐inflammatory, antioxidant, and antibacterial properties, and by suppressing fibrosis through decreased transforming growth factor‐β1(TGF‐β1) expression, showing effective POA prevention in rat abdominal cavity and rabbit dura mater models.
Mechanically Robust and Anti‐Swelling Anisotropic Conductive Hydrogel with Fluorescence for Multifunctional Sensing
Authors: Zhang Yaoxun , Jing Xin , Zou Jian , Feng Peiyong , Wang Gangrong , Zeng Jiazhou , Lin Liya , Liu Yuejun , Mi Hao‐Yang , Nie Shanshan 
Published: August 2024

AbstractThe intricate muscle arrangement structure endows the biological tissues with unique mechanical properties. Inspired by that, a mechanically robust and multifunctional anisotropic Polyacrylamide/Sodium alginate/Zirconium ion/Carbon dots (PAM/SA/Zr4+/CDs, PSZC) hydrogel is developed through the synergistic effect of mechanical‐assisted stretching, Zr4+ metal‐coordination and CDs embedding. The resulting hydrogel exhibited an impressive tensile strength of 2.56 MPa and exceptional toughness of 10.10 MJ m−3 along the stretching direction, attributing to the oriented alignment of PAM and SA molecular chains induced by mechanical‐assisted stretching and metal‐coordination. The dense network structure endowed the PSZC hydrogel with excellent anti‐swelling performance, achieving a swelling ratio of only 1.7% after being stored in water for 30 days. The presence of Zr4+ conferred remarkable electrical conductivity of 2.15 S m−1 to the PSZC hydrogel. Furthermore, the integration of carbon dots imparted the PSZC hydrogel fluorescence properties, rendering it visual sensing capabilities. Overall, a straightforward strategy is proposed for fabricating a mechanically robust and multifunctional hydrogel suitable for underwater sensing and visual sensing, offering valuable insights for the development of high‐performance underwater sensors.
Direct Chiral Discrimination with NMR
Authors: Wadhwa Sagar , Buyens Dominique , Korvink Jan G. 
Published: August 2024

AbstractUnaided nuclear magnetic resonance (NMR) spectroscopy is considered incapable of distinguishing enantiomers. However, as first derived by A.D. Buckingham, the tensor coupling the electric and magnetic dipoles is space‐dependent, which varies according to the molecular structure, hence, would be different for two enantiomers. Exploiting the odd‐parity coupling tensor, a new variant of a double‐resonant radiofrequency (RF) NMR detector is developed, which is sensitive to both electric and magnetic dipoles. Using the detector, a new method for liquid‐state NMR is developed and elaborated, with which two enantiomers are successfully discriminated.
Stereolithographic 3D Printing of Intrinsically Flame‐Retardant Shape‐Memory Polymers
Authors: Razzaq Muhammad Yasar , Rupp Harald , Balk Maria , Schadewald Anke 
Published: August 2024

AbstractThis study presents a novel approach to fabricate 3D‐printed phosphorous‐based acrylate monomers using stereolithographic 3D printing technology, aiming to create demonstrators with exceptional shape‐memory characteristics and robust flame retardant properties. The synthesized materials combine the advantages of 3D printing precision with the intrinsic flame retardancy of phosphorous‐based monomers, offering a versatile solution for applications requiring both shape memory functionality and fire resistance. The limiting oxygen index (LOI) value of the intrinsically flame‐retardant shape‐memory polymer (IFR‐SMP) can reach 34%, and the vertical combustion rating after UL 94 can obtain V‐0. The mechanism of the IFR‐SMP flame retardant mainly includes terminating a free‐radical chain reaction and gas phase dilution, which indicates that the gas‐phase mechanism plays an important role in the flame retardancy. This work advances the frontiers of 3D printing technology by demonstrating the synergistic potential of shape memory and flame retardancy within a single material system, providing a pathway toward the development of innovative and resilient materials for the future.
Multispectral Hierarchical Metamaterials with Broadband Microwave Absorption, Gradient Infrared Emissivity, and High Visible Transparency
Authors: Meng Zhen , Liu Dongqing , Pang Yongqiang , Wang Jiafu , Jia Yan , Wang Xinfei , Cheng Haifeng 
Published: August 2024

AbstractThe rapid progression of multispectral detectors poses a serious threat to weapon systems and personnel. The efficiency of stealth camouflage materials, however, has strong wavelength dependence, which limits their functionality to a specific spectral range. Here, a multispectral hierarchical metamaterial (MHM) with broadband microwave absorption, gradient infrared (IR) emissivity, and high visible transparency is proposed. The MHM design entails the integration of two distinct functional layers: the infrared camouflage layer (IRCL) and the radar absorbing layer (RAL). Specifically, leveraging the low‐pass and high‐impedance properties of capacitive frequency selective surfaces and adjustable filling ratio of low IR radiation materials, the IRCL achieves simultaneous high microwave transmission and gradient IR emissivity designs (emissivity gradients > 0.15 at 3–5 and 8–14 µm). The RAL achieves broadband microwave absorption across radar C, X, Ku, and Ka bands through a circuit‐analog absorber designed with lossy materials. Furthermore, prioritizing materials with high transparency enhances the average optical transmittance (>61.8%) of MHM in 380–760 nm. These distinctive features underscore the potential of the proposed MHM for advanced applications in camouflage and stealth technologies.
3D‐Printed Highly Porous Functional Materials for the Efficient Removal of Adenovirus
Authors: Keitel Benedikt , Dietl Sandra , Philipp Tom , Neusser Gregor , Kranz Christine , Sobek Harald , Mizaikoff Boris , Dinc Mehmet 
Published: August 2024

AbstractHierarchical porous acrylate‐based materials are highly interesting as 3D filter materials, such as for virus removal from suspensions. Here, the synthesis of highly porous monolithic 3D materials by polymerization‐induced phase separation in liquid crystal display (LCD) based 3D printing is presented for the efficient removal of human adenovirus type 5. The hierarchical porosity can be tuned via the variation of the photocurable resin composition (i.e., inherent porosity) and the computer‐aided design (i.e., “printed” porosity; microchannels). 3D polymer structures with highly intricate geometries and structural features ranging from ≈20 nm up to cm can be achieved, which can be used for effective virus removal in a laboratory‐scale flow‐through approach. Combined focused ion beam/scanning electron microscopy tomography and mercury porosimetry provide detailed information on the inherent pore size, pore size distribution, and pore interconnectivity, which is key for the performance of such functional 3D materials. Polymers with a theoretical void volume of 75% show virus capture with a removal efficiency of ≈70% of the adenovirus. Polymers with the same theoretical void volume and macroscopic design but a more hydrophobic nature captured only ≈33%. An optimized adenovirus retention of 98% is achieved by adjusting the microchannels of the tunable inserts.