Miracle-dz/UniFAR-FTUs huggingface dataset:
Optimal reader location for collision-free communication in WRSN

In wireless rechargeable sensor networks (WRSN), rechargeable sensor nodes harvest ambient RF energy from power sources such as the RFID readers. However, the simultaneous transmissions may cause severe communication collisions. Different from traditional approaches which mainly resolve such collisions at the MAC layer, in this work we optimize the deployment of RFID reader in order to avoid the communication collisions by exploiting the differences in the time of charge among rechargeable sensor nodes. Specifically, when the reader is able to cover the whole deployment field, an efficient collision-free solution with proved optimality is presented to minimize the communication delay in the network. Simulation results are employed to verify the proposed algorithm.
High-fidelity simulations of bubble, droplet and spray formation in breaking waves

High-fidelity simulations of wave breaking processes are performed with a focus on the small-scale structures of breaking waves, such as bubble/droplet size distributions. Very large grids (up to 12 billion grid points) are used in order to resolve the bubbles/droplets in breaking waves at the scale of hundreds of micrometres. Wave breaking processes and spanwise three-dimensional interface structures are identified. It is speculated that the Görtler type centrifugal instability is likely more relevant to the plunging wave breaking instabilities. Detailed air entrainment and spray formation processes are shown. The bubble size distribution shows power-law scaling with two different slopes which are separated by the Hinze scale. The droplet size distribution also shows power-law scaling. The computational results compare well with the available experimental and computational data in the literature. Computational difficulties and challenges for large grid simulations are addressed.
THE EFFECTS OF COMPRESSION TIGHTS ON DYNAMIC KNEE MOTION DURING A DROP VERTICAL JUMP IN FEMALE COLLEGE ATHLETES

The purpose of this study is to evaluate the ability of compression tights to influence knee motion during a drop vertical jump (DVJ) in healthy college-aged female athletes. 23 athletes participating in jumping sports (volleyball, basketball, and soccer) were tested. A standard Helen-Hayes 29-marker set was applied to the subjects and recorded using 8 visible-red cameras and 2 force plates. Average hip internal rotation was reduced by 1.9° (p= 0.005), hip abduction range of motion was 2.4° less (p= 0.002), hip abduction angle at initial contact was reduced by 2.7° (p= 0.018), and knee valgus angle at initial contact was also reduced by 1.7° (p= 0.029). These changes support the idea that compression tights may aid in injury prevention and rehabilitation. In the future EMG could be use to identify differences in muscle activation patterns.
2-2018 Ce 3-xMgxCo 9 : Transformation of a Pauli Paramagnet into a Strong Permanent Magnet

We report on the synthesis of single-crystal and polycrystalline samples of Ce 3 − x Mg x Co 9 solid solution ( 0 ≤ x ≲ 1.4 ) and characterization of their structural and magnetic properties. The crystal structure remains rhombohedral in the whole composition range and Mg partially replaces Ce in the 6 c site of the CeCo 3 structure. Ferromagnetism is induced by Mg substitutions starting as low as x = 0.18 and reaching a Curie temperature as high as 450 K for x = 1.35 . Measurements on single crystals with x = 1.34 and T C = 440 K indicate an axial magnetic anisotropy with an anisotropy field of 6 T and a magnetization of 6 μ B / f . u . at 300 K. Coercicity is observed in the polycrystalline samples consistent with the observed axial magnetic anisotropy. Our discovery of ferromagnetism with large axial magnetic anisotropy induced by substituting a rare-earth element by Mg is a very promising result in the search of inexpensive permanent-magnet materials and suggests that other nonmagnetic phases, similar to CeCo 3 , may also conceal nearby ferromagnetic phases. Disciplines Condensed Matter Physics | Materials Science and Engineering Authors Tej Lamichhane, Valentin Taufour, Andriy Palasyuk, Qisheng Lin, Sergey Bud’ko, and Paul C. Canfield This article is available at Iowa State University Digital Repository: https://lib.dr.iastate.edu/ameslab_manuscripts/109 Ce3 xMgxCo9: Transformation of a Pauli Paramagnet into a Strong Permanent Magnet Tej N. Lamichhane, Valentin Taufour, Andriy Palasyuk, Qisheng Lin, Sergey L. Bud’ko, and Paul C. Canfield Ames Laboratory, U.S. DOE, Ames, Iowa 50011, USA Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA Department of Physics, University of California Davis, Davis, California 95616, USA (Received 31 October 2017; revised manuscript received 16 January 2018; published 23 February 2018) We report on the synthesis of single-crystal and polycrystalline samples of Ce3−xMgxCo9 solid solution (0 ≤ x ≲ 1.4) and characterization of their structural and magnetic properties. The crystal structure remains rhombohedral in the whole composition range and Mg partially replaces Ce in the 6c site of the CeCo3 structure. Ferromagnetism is induced by Mg substitutions starting as low as x 1⁄4 0.18 and reaching a Curie temperature as high as 450 K for x 1⁄4 1.35. Measurements on single crystals with x 1⁄4 1.34 and TC 1⁄4 440 K indicate an axial magnetic anisotropy with an anisotropy field of 6 T and a magnetization of 6 μB/f:u: at 300 K. Coercicity is observed in the polycrystalline samples consistent with the observed axial magnetic anisotropy. Our discovery of ferromagnetism with large axial magnetic anisotropy induced by substituting a rare-earth element by Mg is a very promising result in the search of inexpensive permanentmagnet materials and suggests that other nonmagnetic phases, similar to CeCo3, may also conceal nearby ferromagnetic phases. DOI: 10.1103/PhysRevApplied.9. 024023
NADEEF: A Generalized Data Cleaning System

We present NADEEF, an extensible, generic and easy-to-deploy data cleaning system. NADEEF distinguishes between a programming interface and a core to achieve generality and extensibility. The programming interface allows users to specify data quality rules by writing code that implements predefined classes. These classes uniformly define what is wrong with the data and (possibly) how to fix it. We will demonstrate the following features provided by NADEEF. (1) Heterogeneity: The programming interface can be used to express many types of data quality rules beyond the well known CFDs (FDs), MDs and ETL rules. (2) Interdependency: The core algorithms can interleave multiple types of rules to detect and repair data errors. (3) Deployment and extensibility: Users can easily customize NADEEF by defining new types of rules, or by extending the core. (4) Metadata management and data custodians: We show a live data quality dashboard to effectively involve users in the data cleaning process.
Adenosine Triphosphate–dependent Asymmetry of Anion Permeation in the Cystic Fibrosis Transmembrane Conductance Regulator Chloride Channel

The cystic fibrosis transmembrane conductance regulator (CFTR) forms a tightly regulated channel that mediates the passive diffusion of Cl− ions. Here we show, using macroscopic current recording from excised membrane patches, that CFTR also shows significant, but highly asymmetrical, permeability to a broad range of large organic anions. Thus, all large organic anions tested were permeant when present in the intracellular solution under biionic conditions (P X/P Cl = 0.048–0.25), whereas most were not measurably permeant when present in the extracellular solution. This asymmetry was not observed for smaller anions. ATPase inhibitors that “lock” CFTR channels in the open state (pyrophosphate, 5′-adenylylimidodiphosphate) disrupted the asymmetry of large anion permeation by allowing their influx from the extracellular solution, which suggests that ATP hydrolysis is required to maintain asymmetric permeability. The ability of CFTR to allow efflux of large organic anions represents a novel function of CFTR. Loss of this function may contribute to the pleiotropic symptoms seen in cystic fibrosis.
Evaluation of Conical Self-tapping One-piece Implants for Immediate Loading of Maxillary Overdentures

Studies of maxillary overdentures supported by conventional implants often show a high implant failure rate. It was believed that maxillary implants should be splinted to retain a removable maxillary overdenture in order to maintain osseointegration. Materials and Methods: The present study evaluated the clinical performance of new generation of OsteoCare's Midi self-tapping self-drilling one-piece (ball type) implants for the support of maxillary overdentures. Seventy five implants were placed in the anterior maxillary region of 14 patients. A transmucosal flapless procedure was used to place four to six implants for each patient and followed by immediate delivery of an overdenture. The patients were evaluated at 6-month intervals for a follow-up period of 18 months. The clinical criteria to be checked were survival rate, Periotest values, radiographic crestal bone level and patient satisfaction. The results showed that 73 implants had successfully osseointegrated as indicated by the clinical and radiographic examinations. Implant survival rate of 97.3% was attested. The accumulated mean marginal bone loss was 0.88mm at the end of the follow-up period. Patients showed a very high degree of satisfaction of the treatment outcome due to the highly improved retention with partial palatal coverage using horse shoe designed maxillary over-dentures. This procedure has many advantages which include implant placement with minimally invasive transmucosal flapless surgery, decreased postoperative pain and a decreased cost of treatment. Single-stage one-piece implant placement, immediate loading, and transmucosal flapless surgery can result in high success rates when proper techniques are utilized with appropriate patient selection. In conclusion, the use of the Osteocare's Midi one-piece (ball type) implants is a valid unique simple treatment modality to support maxillary overdentures. (Amr Zahran, Mona Darhous, Mohamed Sherien, Tarek El-Nimr, Basma Mostafa, Tamer Amir Evaluation of Conical Self-tapping One-piece Implants for Immediate Loading of Maxillary Overdentures. Journal of American Science 2010;6(12):1774-1781). (ISSN: 1545-1003). http://www.americanscience. org .
The Y Chromosome Modulates Splicing and Sex-Biased Intron Retention Rates in Drosophila

The Drosophila Y chromosome is a 40-Mb segment of mostly repetitive DNA; it harbors a handful of protein-coding genes and a disproportionate amount of satellite repeats, transposable elements, and multicopy DNA arrays. Intron retention (IR) is a type of alternative splicing (AS) event by which one or more introns remain within the mature transcript. IR recently emerged as a deliberate cellular mechanism to modulate gene expression levels and has been implicated in multiple biological processes. However, the extent of sex differences in IR and the contribution of the Y chromosome to the modulation of AS and IR rates has not been addressed. Here we showed pervasive IR in the fruit fly Drosophila melanogaster with thousands of novel IR events, hundreds of which displayed extensive sex bias. The data also revealed an unsuspected role for the Y chromosome in the modulation of AS and IR. The majority of sex-biased IR events introduced premature termination codons and the magnitude of sex bias was associated with gene expression differences between the sexes. Surprisingly, an extra Y chromosome in males (X^YY genotype) or the presence of a Y chromosome in females (X^XY genotype) significantly modulated IR and recapitulated natural differences in IR between the sexes. Our results highlight the significance of sex-biased IR in tuning sex differences and the role of the Y chromosome as a source of variable IR rates between the sexes. Modulation of splicing and IR rates across the genome represent new and unexpected outcomes of the Drosophila Y chromosome.
Predictors of burnout among HIV nurses in the Western Cape

Background Burnout has been implicated as one of the reasons for key healthcare personnel, such as nurses, leaving their profession, resulting in insufficient staff to attend to patients. Objective We investigated the predictors of three dimensions of burnout, namely emotional exhaustion, depersonalisation and personal accomplishment, among nurses in South Africa attending to patients living with HIV. Method Participants were recruited at a large tertiary hospital in the Western Cape region, with the help of the assistant director of nursing at the hospital. They completed the Maslach Burnout Inventory, the Quantitative Workload Inventory, the Interpersonal Conflict at Work Scale, the Organisational Constraints Scale, the Death and Dying subscale of the Nursing Stress Scale, and the HIV and AIDS Stigma Instrument – Nurse. Results We found elevated levels of burnout among the sample. Workload, job status and interpersonal conflict at work significantly explained more than one-third of the variance in emotional exhaustion (R² = 0.39, F(7, 102) = 9.28, p = 0.001). Interpersonal conflict, workload, organisational constraints and HIV stigma significantly explained depersonalisation (R² = 0.33, F(7, 102) = 7.22, p = 0.001). Job status and organisational constraints significantly predicted personal accomplishment (R² = 0.18, F(7, 102) = 3.12, p = 0.001). Conclusion Factors such as workload, job status and interpersonal conflict in the work context, organisational constraints and stigma associated with HIV were found to be predictors of burnout in the sample of nurses. Our recommendations include developing and testing interventions aimed at reducing burnout among nurses, including reducing workload and creating conditions for less interpersonal conflict at work.
Estimated inventory of chemicals added to underground waste tanks, 1944--1975. [Analysis of sludges and salt cakes]

The five major chemical processes, the Bismuth Phosphate process, the Uranium Recovery process, the Redox process, the Purex process, and the Waste Fractionization process have each contributed to give the total Hanford waste chemicals. Each of these processes is studied to determine the total estimated chemicals stored in underground waste tanks. The chemical contents are derived mainly from flowsheet compositions and recorded waste volumes sent to underground storage. The major components and amounts of Hanford waste are sodium hydroxide, 230 million gram-moles (20 million pounds), sodium nitrate, 1400 million gram-moles (270 million pounds), sodium nitrite, 220 million gram-moles (34 million pounds), sodium aluminate, 400 million gram-moles (72 million pounds), and sodium phosphate, 87 million gram-moles (31 million pounds). Chemical analyses of the sludge and salt cake samples are tabulated to determine the chemical characteristics of the solids. A relative chemical toxicity of the Hanford underground waste tank chemicals is developed from maximum permissible chemical concentrations in air and water. The most toxic chemicals are assumed to be sodium phosphate--35%, sodium aluminate--28%, and chromium hydroxide--19%. If air standards set toxicity limits, the most toxic chemicals are bismuth--41%, chromium hydroxide--23%, and fluoride--10%.
Properties of sandcrete mixtures modified with metakaolin

Eco-friendly, low-cost, sustainable construction materials for utilisation in civil engineering projects have attracted much attention recently. This work deals with the synthesis of sandcrete mixes with metakaolin as a mineral admixture, which can be used either as grout in soil stabilisation (p.e. in corrosive environments like landfills, coastal regions etc.) or as a material for the construction of structural elements. Sandcrete mix design optimisation and mechanical behaviour of the produced samples have been experimentally investigated. It has been found that the beneficial properties of metakaolin can be used towards the production of sandcrete mixes with improved mechanical properties.
Conjoint Associations of Gestational Diabetes and Hypertension With Diabetes, Hypertension, and Cardiovascular Disease in Parents: A Retrospective Cohort Study

Abstract The conjoint association of gestational diabetes mellitus (GDM) and gestational hypertension (GH) with cardiometabolic disease has not been well studied. We evaluated a combined GDM/GH risk indicator in both mothers and fathers because of shared spousal behaviors and environments. In the present population-based retrospective cohort study, GH was identified in matched pairs of mothers with GDM or without GDM (matched on age group, health region, and year of delivery) who had singleton live births in Quebec, Canada (1990–2007). A total of 64,232 couples were categorized based on GDM/GH status (neither, either, or both). Associations with diabetes, hypertension, and a composite of cardiovascular disease (CVD) and mortality were evaluated using Cox proportional hazard models (from 12 weeks postpartum to March 2012). Compared with having neither GDM nor GH, having either was associated with incident diabetes (hazard ratio (HR) = 14.7, 95% confidence interval (CI): 12.9, 16.6), hypertension (HR = 1.9, 95% CI: 1.8, 2.0), and CVD/mortality (HR = 1.4, 95% CI: 1.2, 1.7). We found associations of greater magnitude among participants who had both (for diabetes, HR = 36.9, 95% CI: 26.0, 52.3; for hypertension, HR = 5.7, 95% CI: 4.9, 6.7; and for CVD/mortality, HR = 2.4, 95% CI: 1.6, 3.5). Associations with diabetes were also observed in fathers (for either, HR = 1.2, 95% CI: 1.1, 1.3; for both, HR = 1.8, 95% CI: 1.4, 2.3). In conclusion, we found associations of a combined GDM/GH indicator with cardiometabolic disease in mothers and with diabetes in fathers, with stronger associations when both GDM and GH were present.
Production of aluminium–fly ash particulate composite by powder metallurgy technique using boric acid as foaming agent

Abstract Fly ash-particulated (FA) aluminium metal matrix composites and boric acid was used for the production of foam using powder metallurgy technology. Using boron products such as boric acid as a pore forming agent is different from the ones used in literature. Aluminium–FA composites containing 1 wt. % and 10 wt. % of FA were prepared and mixed with 50 wt. % boric acid and then compacted. The compacts prepared at 630 MPa were sintered in argon atmosphere at 550 °C for 3 h. The microstructure characteristic and compressive behaviour of the foam at strain rate of 10−3 s−1 were investigated. The morphology and chemical composition of the phases in the composite samples were investigated using Scanning Electron Microscopy, Energy Dispersive X-ray Spectroscopy and X-ray diffraction. Aluminium composite foam samples with ~40% porosity were successfully produced with the 0.6 mm mean cell size. Strength of the sintered compacts increased with increasing weight per cent of FA under the present experimental conditions. Results show that the yield stress and plateau stress are in the range of 10–30 MPa and 7–16 MPa, respectively.
The Arabidopsis thaliana Mediator subunit MED8 regulates plant immunity to Botrytis Cinerea through interacting with the basic helix-loop-helix (bHLH) transcription factor FAMA

The Mediator complex is at the core of transcriptional regulation and plays a central role in plant immunity. The MEDIATOR25 (MED25) subunit of Arabidopsis thaliana regulates jasmonate-dependent resistance to Botrytis cinerea through interacting with the basic helix-loop-helix (bHLH) transcription factor of jasmonate signaling, MYC2. Another Mediator subunit, MED8, acts independently or together with MED25 in plant immunity. However, unlike MED25, the underlying action mechanisms of MED8 in regulating B. cinerea resistance are still unknown. Here, we demonstrated that MED8 regulated plant immunity to B. cinerea through interacting with another bHLH transcription factor, FAMA, which was previously shown to control the final proliferation/differentiation switch during stomatal development. Our research demonstrates that FAMA is also an essential component of B. cinerea resistance. The fama loss-of-function mutants (fama-1 and fama-2) increased susceptibility to B. cinerea infection and reduced defense-gene expression. On the contrary, transgenic lines constitutively overexpressing FAMA showed opposite B. cinerea responses compared with the fama loss-of-function mutants. FAMA-overexpressed plants displayed enhanced resistance to B. cinerea infection and increased expression levels of defensin genes following B. cinerea treatment. Genetic analysis of MED8 and FAMA suggested that FAMA-regulated pathogen resistance was dependent on MED8. In addition, MED8 and FAMA were both associated with the G-box region in the promoter of ORA59. Our findings indicate that the MED8 subunit of the A. thaliana Mediator regulates plant immunity to B. cinerea through interacting with the transcription factor FAMA, which was discovered to be a key component in B. cinerea resistance.
Quantitative analysis of the deposited nanoparticle dose on cell cultures by optical absorption spectroscopy.

AIM The delivered nanoparticle dose to cells in vitro may depend on nanoparticle sedimentation rate. Here, the conditions under which optical absorption spectroscopy can be used to quantify the deposited nanoparticle dose in vitro are investigated. MATERIALS & METHODS Nanoparticle cytotoxicity in both upright and inverted cell culture orientations is studied in the presence and absence of serum. RESULTS Dissolvable nanoparticles, such as ZnO, exhibit no difference in upright and inverted cultures due to dissolved Zn(2+) ions that dominate cytotoxicity. Insoluble nanoparticles, however, exhibit different sedimentation rates and deposited doses that are linked to the observed cytotoxicity. CONCLUSION The combined use of upright-inverted cell orientations and optical absorption spectroscopy can provide a simple experimental approach to interpret in vitro nano-biointeractions.
Effect of Nb on deformation-enhanced ferrite transformation in low carbon steel

The microstructure evolutions during deformation-enhanced transformation of undercooled austenite of Nb-microalloyed steel and low carbon steel with the similar contents of C and Mn were investigated by hot compression simulation experiment. The effect of Nb on the deformation-enhanced ferrite transformation was studied, and the transformation kinetics was analyzed. The results show that Nb(CN) precipitation promotes ferrite nucleation significantly before deformation-enhanced ferrite transformation. Ultra-fine ferrite with a grain size of about 1.9 μm is formed in Nb-microalloyed steel during deformation of undercooled austenite between A3—Ar3. Deformation-enhanced transformation is the dominated process in the early stage of deformation; as ferrite transformation accomplished, the ferrite grain size of Nb-microalloyed steel is smaller than that of low carbon steel.
On the origin of indentation size effects and depth dependent mechanical properties of elastic polymers

Abstract Indentation size effects have been observed in both polymers and metals but, unlike in metals, the origin of size effects in polymers is not well understood. To clarify the role of second order gradients of displacements, a model polymer is examined with spherical and Berkovich tips at probing depths between 5 and 25 μm. Applying different theories to determine the elastic modulus, it is found that with a pyramidal tip, the elastic modulus increases with decreasing indentation depth, while tests with the spherical tip yielded essentially constant values for the elastic modulus independent of indentation depth. The differences between these tips are attributed to second order displacement gradients, as they remain essentially constant with a spherical tip while they increase in magnitude with decreasing indentation depth applying a Berkovich tip.