bluuebunny/crossref_metadata_2025_split huggingface dataset:
Upper Silurian miospores from the Precordillera Basin, Argentina: biostratigraphic, palaeonvironmental and palaeogeographic implications
Authors: GARCÍA MURO V. J. , RUBINSTEIN C. V. , STEEMANS P. 
Published: August 2013

AbstractThis study is concentrated on Ludlow (to Pridoli?) miospores from the Los Espejos Formation at the Quebrada Ancha locality, Central Precordillera, San Juan Province, Argentina. The Ludlow age is in agreement with the age based on acritarchs. The assemblage of continental palynomorphs is composed of 43 miospore species (29 trilete spores and 14 cryptospores). A new synonymy is proposed:Chelinospora poecilomorphais here considered a junior synonym ofClivosispora verrucata. In addition, specimens belonging toC. verrucatavar.verrucataandC. verrucatavar.convolutaare included in a new morphon. This study represents the second Late Silurian miospore assemblage described from South America; the first was from the Urubu River, Amazon Basin, northern Brazil. The Quebrada Ancha assemblages allow a reasonably good correlation with biozones established for the Upper Silurian from the Cantabrian Mountains, northern Spain. The dendrogram analysis between coeval miospore assemblages from different localities shows a strong palaeogeographic affinity with the miospores recovered from northern Brazil and North Africa. Miospore assemblages from Spain show influences from Baltica and North Africa, demonstrating their intermediate position between these two continental plates. Conversely, dissimilarities recognized between Libya and Tunisia are most probably owing to local ecology and/or environmental conditions.
I am a warm robot: the effects of temperature in physical human–robot interaction
Authors: Park Eunil , Lee Jaeryoung 
Published: August 2013

SUMMARYWhat factors affect users' perceptions of physical human–robot interactions? To answer this question, this study examined whether the skin temperature of a social robot affected users' perceptions of the robot during physical interaction. Results from a between-subjects experiment (warm, intermediate, cool, or no interaction) with a dinosaur robot demonstrated that skin temperature significantly affects users' perceptions and evaluations of a socially interactive robot. Additionally, this study found that social presence had partial mediating effects on several dependent variables. Important implications and limitations for improving human–robot interactions are discussed here.
Association between recent herpes zoster but not herpes simplex infection and subsequent risk of malignancy in women: a retrospective cohort study
Authors: BUNTINX F. , BARTHOLOMEEUSEN S. , BELMANS A. , MATHEI C. , OPDENAKKER G. , SWELDENS K. , TRUYERS C. , VAN RANST M. 
Published: August 2013

SUMMARYThe association between herpes zoster and subsequent cancer risk is still unclear. Consequently, doubts remain regarding the need for investigation of herpes patients for co-existing or subsequent malignancy. This is a retrospective cohort study comparing cancer risk in patients after herpes zoster and age-/sex-matched non-herpes zoster patients, in a primary care-based continuous morbidity database. We tested for interaction by gender, age, diabetes, HRT use or antiviral therapy. Analyses were repeated for patients with and without herpes simplex. The hazard ratio (HR) comparing cancer risk in herpes zoster vs. control patients was significant in all women, women aged > 65 years and subgroups of breast and colorectal cancer (HRs 1·60, 1·82, 2·14, 2·19, respectively). For men, a significant association was found for haematological cancers (HR 2·92). No associations were found with herpes simplex. No interaction was identified with antiviral therapy, diabetes or HRT treatment. We concluded that there was a moderate significant association between herpes zoster and subsequent cancer risk in women aged > 65 years, without any influence of antiviral therapy. No association was found with herpes simplex. There is insufficient reason for extensively testing older patients with herpes zoster or herpes simplex for the presence of occult cancer.
Cluster investigation of mixed O76:H19 Shiga toxin-producingEscherichia coliand atypical enteropathogenicE. coliinfection in a Spanish household
Authors: SÁNCHEZ S. , CENOZ M. GARCÍA , MARTÍN C. , BERISTAIN X. , LLORENTE M. T. , HERRERA-LEÓN S. 
Published: August 2013

SUMMARYA Spanish household was identified through a Public Health follow up on a Shiga toxin-producingEscherichia coli(STEC)-positive 14-month-old girl reporting bloody diarrhoea, with the four household members experiencing either symptomatic or asymptomatic STEC and/or atypical enteropathogenicE. coli(aEPEC) shedding. In total, two different O76:H19 STEC strains and six aEPEC strains belonging to multiple serotypes were isolated and characterized in the household during a 5-month period. Prolonged asymptomatic shedding of O76:H19 STEC and O51:H49 aEPEC was detected in two family members. Although there was no conclusive evidence, consumption of vegetables fertilized with sheep manure was the suspected source of infection. This study highlights the risk of cross-infections posed by prolonged asymptomatic carriage and close household contact between family members, and illustrates the importance of molecular epidemiology in understanding disease clusters.
A relationship between acute respiratory illnesses and weather
Authors: COSTILLA-ESQUIVEL A. , CORONA-VILLAVICENCIO F. , VELASCO-CASTAÑÓN J. G. , MEDINA-DE LA GARZA C. E. , MARTÍNEZ-VILLARREAL R. T. , CORTES-HERNÁNDEZ D. E. , RAMÍREZ-LÓPEZ L. E. , GONZÁLEZ-FARÍAS G. 
Published: August 2013

SUMMARYWeekly data from 7 years (2004–2010) of primary-care counts of acute respiratory illnesses (ARIs) and local weather readings were used to adjust a multivariate time-series vector error correction model with covariates (VECMX). Weather variables were included through a partial least squares index that consisted of weekly minimum temperature (coefficient = − 0·26), weekly median of relative humidity (coefficient = 0·22) and weekly accumulated rainfall (coefficient = 0·5). The VECMX long-term test reported significance for trend (0·01, P = 0·00) and weather index (1·69, P = 0·00). Short-term relationship was influenced by seasonality. The model accounted for 76% of the variability in the series (adj. R2 = 0·76), and the co-integration diagnostics confirmed its appropriateness. The procedure is easily reproducible by researchers in all climates, can be used to identify relevant weather fluctuations affecting the incidence of ARIs, and could help clarify the influence of contact rates on the spread of these diseases.
Articulatory mapping of Yoruba vowels: an ultrasound study
Authors: Allen Blake , Pulleyblank Douglas , Ajíbóyè Ọládiípọ̀ 
Published: August 2013

This paper examines the articulation of harmonically distinct classes of vowels in Standard Yoruba. There has been considerable disagreement as to whether the distinction between [e o] and [∊ ɔ] is one of vowel height or tongue-root advancement/retraction. This paper reports on an ultrasound investigation of Yoruba vowels. Results are consistent with harmonic classes distinguished by a tongue-root advancement/retraction feature, not by vowel height. We also investigate the relation between articulations of the tongue root and its neutral position between utterances, theinter-speech posture(ISP). We find more variability in ISP-to-articulation mapping than previous studies, but our results are still partially compatible with a postulated correlation between phonologically ‘active’ feature values and articulatory displacement from ISP. Overall, our results support an analysis of Yoruba vowels in terms of a tongue-root feature, and provide insight into the mapping between phonetics and phonology.
Nurses' knowledge about palliative care in Southeast Iran
Authors: Iranmanesh Sedigheh , Razban Farideh , Tirgari Batool , Zahra Ghazanfari 
Published: August 2013

AbstractObjective:Palliative care requires nurses to be knowledgeable about different aspects of the care that they provide for dying patients. This study, therefore, was conducted to examine oncology and intensive care nurses' knowledge about palliative care in Southeast Iran.Method:Using the Palliative Care Quiz for Nursing (PCQN), 140 oncology and intensive care unit (ICU) nurses' knowledge about palliative care in three hospitals supervised by Kerman University of Medical Sciences was assessed.Results:In PCQN, the mean score was 7.59 (SD: 2.28). The most correct answers were in the category of management of pain and other symptoms (46.07%). The lowest correct answers were in the category of psychosocial and spiritual care (19.3%).Significance of results:These findings suggest that nurses' knowledge about palliative care can be improved by establishing specific palliative care units to focus on end-of-life care. This establishment requires incorporation of an end-of-life nursing education curriculum into undergraduate nursing studies.
A Reading of Westcott's Gospel of Creation: An Early Venture into Ecological Theology?
Authors: Reid Duncan 
Published: August 2013

AbstractIn response to the contemporary ecological movement, ecological perspectives have become a significant theme in the theology of creation. This paper asks whether antecedents to this growing significance might predate the concerns of our times and be discernible within the diverse interests of nineteenth-century Anglican thinking. The means used here to examine this possibility is a close reading of B. F. Westcott's ‘Gospel of Creation’. This will be contextualized in two directions: first with reference to the understanding of the natural world in nineteenth-century English popular thought, and secondly with reference to the approach taken to the doctrine of creation by three late twentieth-century Anglican writers, two concerned with the relationship between science and theology in general, and a third concerned more specifically with ecology.
Exceeding the limit of plasmonic light trapping in textured screen-printed solar cells using Al nanoparticles and wrinkle-like graphene sheets
Authors: Chen Xi , Jia Baohua , Zhang Yinan , Gu Min 
Published: August 2013

AbstractThe solar cell market is predominantly based on textured screen-printed solar cells. Due to parasitic absorption in nanostructures, using plasmonic processes to obtain an enhancement that exceeds 2.5% of the short-circuit photocurrent density is challenging. In this paper, a 7.2% enhancement in the photocurrent density can be achieved through the integration of plasmonic Al nanoparticles and wrinkle-like graphene sheets. For the first time, we experimentally achieve Al nanoparticle-enhanced solar cells. An innovative thermal evaporation method is proposed to fabricate low-coverage Al nanoparticle arrays on solar cells. Due to the ultraviolet (UV) plasmon resonance of Al nanoparticles, the performance enhancement of the solar cells is significantly greater than that from Ag nanoparticles. Subsequently, we deposit wrinkle-like graphene sheets over the Al nanoparticle-enhanced solar cells. Compared with planar graphene sheets, the bend carbon layer also exhibits a broadband light-trapping effect. Our results exceed the limit of plasmonic light trapping in textured screen-printed silicon solar cells.
Carbamylation of LDL and its relationship with myeloperoxidase in Type 2 diabetes mellitus
Authors: Shiu Sammy W. M. , Xiao Su-Mei , Wong Ying , Chow Wing-Sun , Lam Karen S. L. , Tan Kathryn C.B. 
Published: August 2013

LDL (low-density lipoprotein) is subjected to pro-atherogenic modifications in the circulation. A novel uraemia-independent mechanism of carbamylation of lipoproteins mediated by MPO (myeloperoxidase) has recently been reported. We have investigated whether carbamylation of LDL was increased in patients with Type 2 diabetes without renal impairment and the role of MPO. cLDL (carbamylated LDL) and MPO were measured by ELISA in a cross-sectional study of 198 patients and 174 non-diabetic controls. The impact of lowering MPO on plasma cLDL was determined by assaying cLDL and MPO in archived samples from a previous randomized open-label parallel group study comparing rosiglitazone (n=20) and sulfonylurea (n=24). Both plasma cLDL (P&lt;0.05) and MPO levels (P&lt;0.01) were higher in patients with Type 2 diabetes than controls in the cross-sectional study. Plasma cLDL correlated with MPO (r=0.42 and P&lt;0.01) in subjects with diabetes, and plasma MPO was an independent determinant of plasma cLDL even after adjusting for age, gender, BMI (body mass index), apoB (apolipoprotein B), urea and HbA1c (glycated haemoglobin). In the randomized trial, rosiglitazone significantly lowered MPO (P&lt;0.01) and cLDL (P&lt;0.05), whereas no changes were observed in the sulfonylurea group despite a similar reduction in HbA1c. The magnitude of reduction in plasma cLDL correlated with changes in MPO, but not with HbA1c in the rosiglitazone group, suggesting that lowering MPO reduced plasma cLDL. Plasma cLDL is increased in patients with Type 2 diabetes even in the absence of renal impairment and carbamylation of LDL in these subjects is mainly mediated by MPO and not by urea.
Cross‐layer channel selection and reward‐based power allocation for increasing system capacity and reward in multiple‐input–multiple‐output wireless communications
Authors: Chang Ben‐Jye , Liang Ying‐Hsin , Tsai Tzung‐Shiun 
Published: August 2013

For increasing network bandwidth and guaranteeing quality of service in WiMAX, IEEE 802.16 m proposes the multiple‐input–multiple‐output (MIMO) technique that offers compatible specifications with the existing IEEE 802.16 family specifications. However, the performance of the IEEE 802.16 MIMO specification is significantly degraded in the high‐mobility environment and high communication interference. As a result, a sender easily uses inaccurate modulation and coding scheme (MCS) and improper power allocation for different‐priority users having different received signal‐to‐noise ratios. The system capacity is thus affected significantly. Additionally, the multiuser MIMO systems seldom consider that different‐priority users and different‐class traffic bring different rewards to the system. This study thus proposes a cross‐layer reward‐based approach (namely CLR) that consists of three schemes: adaptive modulation and coding determination, cross‐layer dynamic channel selection, and reward‐based weighting power allocation. The proposed CLR approach achieves accurate channel state information determination, optimal channel selection, and adaptive reward power allocation. Numerical results demonstrate that the proposed approach significantly outperforms the other approaches in system reward, system capacity, and the accuracy of the MCS determination.
Maximum Euclidean distance network coded modulation for asymmetric decode‐and‐forward two‐way relaying
Authors: Chen Wei , Cao Zhigang , Hanzo Lajos 
Published: August 2013

Network coding (NC) compresses two traffic flows with the aid of low‐complexity algebraic operations, hence holds the potential of significantly improving both the efficiency of wireless two‐way relaying, where each receiver is collocated with a transmitter and hence has prior knowledge of the message intended for the distant receiver. In this contribution, network coded modulation (NCM) is proposed for jointly performing NC and modulation. As in classic coded modulation, the Euclidean distance between the symbols is maximised, hence the symbol error probability is minimised. Specifically, the authors first propose set‐partitioning‐based NCM as an universal concept which can be combined with arbitrary constellations. Then the authors conceive practical phase‐shift keying/quadrature amplitude modulation (PSK/QAM) NCM schemes, referred to as network coded PSK/QAM, based on modulo addition of the normalised phase/amplitude. To achieve a spatial diversity gain at a low complexity, a NC oriented maximum ratio combining scheme is proposed for combining the network coded signal and the original signal of the source. An adaptive NCM is also proposed to maximise the throughput while guaranteeing a target bit error probability (BEP). Both theoretical performance analysis and simulations demonstrate that the proposed NCM can achieve at least 3 dB signal‐to‐noise ratio gain and two times diversity gain.
Orbital-optimized coupled-electron pair theory and its analytic gradients: Accurate equilibrium geometries, harmonic vibrational frequencies, and hydrogen transfer reactions
Authors: Bozkaya Uğur , Sherrill C. David 
Published: August 2013

Orbital-optimized coupled-electron pair theory [or simply “optimized CEPA(0),” OCEPA(0), for short] and its analytic energy gradients are presented. For variational optimization of the molecular orbitals for the OCEPA(0) method, a Lagrangian-based approach is used along with an orbital direct inversion of the iterative subspace algorithm. The cost of the method is comparable to that of CCSD [O(N6) scaling] for energy computations. However, for analytic gradient computations the OCEPA(0) method is only half as expensive as CCSD since there is no need to solve the λ2-amplitude equation for OCEPA(0). The performance of the OCEPA(0) method is compared with that of the canonical MP2, CEPA(0), CCSD, and CCSD(T) methods, for equilibrium geometries, harmonic vibrational frequencies, and hydrogen transfer reactions between radicals. For bond lengths of both closed and open-shell molecules, the OCEPA(0) method improves upon CEPA(0) and CCSD by 25%–43% and 38%–53%, respectively, with Dunning's cc-pCVQZ basis set. Especially for the open-shell test set, the performance of OCEPA(0) is comparable with that of CCSD(T) (ΔR is 0.0003 Å on average). For harmonic vibrational frequencies of closed-shell molecules, the OCEPA(0) method again outperforms CEPA(0) and CCSD by 33%–79% and 53%–79%, respectively. For harmonic vibrational frequencies of open-shell molecules, the mean absolute error (MAE) of the OCEPA(0) method (39 cm−1) is fortuitously even better than that of CCSD(T) (50 cm−1), while the MAEs of CEPA(0) (184 cm−1) and CCSD (84 cm−1) are considerably higher. For complete basis set estimates of hydrogen transfer reaction energies, the OCEPA(0) method again exhibits a substantially better performance than CEPA(0), providing a mean absolute error of 0.7 kcal mol−1, which is more than 6 times lower than that of CEPA(0) (4.6 kcal mol−1), and comparing to MP2 (7.7 kcal mol−1) there is a more than 10-fold reduction in errors. Whereas the MAE for the CCSD method is only 0.1 kcal mol−1 lower than that of OCEPA(0). Overall, the present application results indicate that the OCEPA(0) method is very promising not only for challenging open-shell systems but also for closed-shell molecules.
Posthandling Survival and PIT Tag Retention by Alewives—A Comparison of Gastric and Surgical Implants
Authors: Castro-Santos Theodore , Vono Volney 
Published: August 2013

Abstract
We compared survival and tag retention of Alewives Alosa pseudoharengus tagged with PIT tags, using intraperitoneal (IP) surgical implants, gastric implants (GI), and untagged controls held for 38 d. Retention was 100% for IP-tagged Alewives and 98% for GI-tagged implants. No significant difference in survival was observed among any of these groups. These results lend support to the use of PIT telemetry for studying fish passage and migration of anadromous herring. Both methods hold promise for improving estimates of freshwater survival of adult anadromous clupeids; further research should make it also possible to refine estimates of adult marine survival.
Received February 4, 2013; accepted May 29, 2013
Results of a Pilot Test of a Self-Administered Smartphone-Based Treatment System for Alcohol Use Disorders: Usability and Early Outcomes
Authors: Dulin Patrick L. , Gonzalez Vivian M. , Campbell Kendra 
Published: August 2013

Background This paper provides results from a pilot study focused on assessing early-stage effectiveness and usability of a smartphone-based intervention system that provides a stand-alone, self-administered intervention option, the Location-Based Monitoring and Intervention for Alcohol Use Disorders (LBMI-A). The LBMI-A provided numerous features for intervening with ongoing drinking, craving, connection with supportive others, managing life problems, high-risk location alerting, and activity scheduling. Methods Twenty-eight participants, ranging in age from 22 to 45, who met criteria for an alcohol use disorder used an LBMI-A–enabled smartphone for 6 weeks. Results Participants indicated the LBMI-A intervention modules were helpful in highlighting alcohol use patterns. Tools related to managing alcohol craving, monitoring consumption, and identifying triggers to drink were rated by participants as particularly helpful. Participants also demonstrated significant reductions in hazardous alcohol use while using the system (56% of days spent hazardously drinking at baseline vs. 25% while using the LBMI-A) and drinks per day diminished by 52%. Conclusions Implications for system improvement as well as suggestions for designing ecological momentary assessment and intervention systems for substance use disorders are discussed.
A Regional Bio‐economic Model of Nitrogen Use in Cropping
Authors: Mérel Pierre , Yi Fujin , Lee Juhwan , Six Johan 
Published: August 2013

AbstractWe develop a programming model of crop production to predict the effects of environmental policies on agriculture and the environment. The model is calibrated against acreages, yields, and exogenous supply elasticities following positive mathematical programming. In addition, crop production functions are calibrated to yield elasticities with respect to nitrogen and irrigation obtained from a biogeochemical model. We study the effects of a nitrogen tax in Yolo County, California, intended to mitigate nitrogen pollution from field crops. The behavioral and environmental responses to the tax are largely due to intensive margin adjustments. Sizable reductions in nitrate leaching are achieved at a low social cost.
Gamma-rays from millisecond pulsar population within the central stellar cluster in the Galactic Centre
Authors: Bednarek W. , Sobczak T. 
Published: August 2013

Abstract
It was proposed that the central dense stellar cluster in the Galactic Centre, containing the mass of ∼4 times larger than that of the central black hole, had been formed as a result of a merging of several massive globular clusters. These globular clusters are expected to provide a large number of millisecond pulsars (MSPs) within the central parsec of the Galactic Centre. We propose that the GeV γ-ray emission observed from the Galactic Centre is in fact a cumulative effect of the emission from several globular clusters captured by the Galactic Centre black hole. Moreover, the MSPs in globular clusters accelerate leptons in their wind zones to energies of the order of a few tens of TeV injecting them into the dense infrared and optical radiation region present within the central parsec. We calculate the expected TeV γ-ray emission produced by these leptons by the inverse Compton scattering process in the soft radiation field. It is shown that this emission can be responsible for the multi-TeV γ-rays observed by the Cherenkov telescopes from the Galactic Centre for reasonable densities of the soft radiation, diffusion models for the propagation of leptons, their injection parameters (fluxes and spectral proprieties). If the energy conversion efficiency from the pulsars to the relativistic leptons is of the order of 10 per cent, then about a thousand of MSPs have to be present in the central cluster in the Galactic Centre.