bluuebunny/crossref_metadata_2025_split huggingface dataset:
The International Bathymetric Chart of the Southern Ocean (IBCSO) Version 1.0—A new bathymetric compilation covering circum‐Antarctic waters
Authors: Arndt Jan Erik , Schenke Hans Werner , Jakobsson Martin , Nitsche Frank O. , Buys Gwen , Goleby Bruce , Rebesco Michele , Bohoyo Fernando , Hong Jongkuk , Black Jenny , Greku Rudolf , Udintsev Gleb , Barrios Felipe , Reynoso‐Peralta Walter , Taisei Morishita , Wigley Rochelle 
Published: March 2013

AbstractThe International Bathymetric Chart of the Southern Ocean (IBCSO) Version 1.0 is a new digital bathymetric model (DBM) portraying the seafloor of the circum‐Antarctic waters south of 60°S. IBCSO is a regional mapping project of the General Bathymetric Chart of the Oceans (GEBCO). The IBCSO Version 1.0 DBM has been compiled from all available bathymetric data collectively gathered by more than 30 institutions from 15 countries. These data include multibeam and single‐beam echo soundings, digitized depths from nautical charts, regional bathymetric gridded compilations, and predicted bathymetry. Specific gridding techniques were applied to compile the DBM from the bathymetric data of different origin, spatial distribution, resolution, and quality. The IBCSO Version 1.0 DBM has a resolution of 500 × 500 m, based on a polar stereographic projection, and is publicly available together with a digital chart for printing from the project website (www.ibcso.org) and at http://dx.doi.org/10.1594/PANGAEA.805736.
Efficacy of the novel antidepressant agomelatine for anxiety symptoms in major depression
Authors: Stein Dan J , Picarel‐Blanchot Francoise , Kennedy Sidney H 
Published: March 2013

ObjectivesAnxiety in major depression is associated with increased morbidity. The antidepressant, agomelatine, which acts as an agonist at melatonin MT1 and MT2 receptors and as an antagonist at serotonin 5‐HT2C receptors, has demonstrated efficacy and safety in both major depression and generalized anxiety disorder. Here, we investigated the efficacy of agomelatine in anxious depression.MethodsData from three placebo‐controlled short‐term trials of agomelatine and three comparative studies of agomelatine versus fluoxetine, sertraline, and venlafaxine were pooled. Effects of agomelatine on anxiety symptoms were assessed with the Hamilton Anxiety Rating Scale in four studies (one vs placebo and three vs active comparator) and with the Hamilton Depression Rating Scale (HAMD) anxiety subscore in all six studies. Anxiolytic and antidepressant efficacies of agomelatine were assessed in patients with more severe anxiety symptoms at baseline (score ≥5 on HAMD anxiety subscore).ResultsAgomelatine had a significantly greater effect on anxiety symptoms than both placebo and a number of comparator antidepressants. In more anxious depressed patients, agomelatine had a significantly greater effect on anxiety and depressive symptoms than both placebo and comparator antidepressants.ConclusionOnce‐a‐day oral agomelatine is a new, efficacious alternative option for the treatment of anxiety in patients with major depression. Copyright © 2013 John Wiley & Sons, Ltd.
Experimental hypothyroidism during pregnancy affects nociception and locomotor performance of offspring in rats
Authors: Alves I.G.N , da Cruz K.M.L , Mota C.M.D. , de Santana D.S. , Gaujac D.P. , de Carvalho V.C.B. , Reis L.C. , Sluka K.A. , Quintans‐Junior L.J. , Antoniolli A.R. , DeSantana J.M. , Badauê‐Passos D. , de Santana‐Filho V.J. 
Published: March 2013

AbstractBackgroundThyroid hormones (THs) play a crucial role in the development of several organic systems. An adequate support of maternal THs may be required to ensure a normal nociceptive function of offspring into adulthood. We investigated the impact of experimental gestational hypothyroidism (EGH) on nociceptive threshold and motor performance in the offspring at different post‐natal days (PND) in both male and female rats.MethodsEGH was induced by the administration of 0.02% methimazole (MMI) in the drinking water from the ninth day of gestation until birth. The offspring from MMI‐treated dams (OMTDs) or from water‐treated dams (OWTDs) were assessed for thermal and mechanical nociception using the tail‐flick test and von Frey filaments, respectively. Both rota‐rod and grip strength were used to assess motor function.ResultsOMTD had reduced thermal (p < 0.05) but not mechanical threshold at all studied ages (60 and 120 PND). Sixty‐day‐old OMTD presented reduced latency to the tail‐flick test (p = 0.01). Grip strength in 120‐day‐old OMTD was reduced (p < 0.01). However, only male OMTD presented a lower locomotor performance on the rota‐rod test when analysed on the 60th PND (p < 0.01).ConclusionsEGH promotes hypersensitivity to noxious thermal but not mechanical stimulus. Moreover, motor force is similarly reduced in male and female OMTDs, whereas motor performance is reduced only in mature male OMTD, suggesting the presence of a protective factor in females.
On Open Access to Research: The Green, the Gold, and the Public Good
Authors: Roach Audra K. , Gainer Jesse 
Published: March 2013

AbstractIn this column the authors discuss barriers to worldwide open access to peer‐reviewed journal articles online and how they might be addressed by literacy scholars. They highlight economic and ethical problems associated with the current subscription‐based system for distributing articles (which sometimes works against the ideals of research and democracy for sharing knowledge). They describe how the Open Access movement in scholarship has responded to these barriers, and ways it recommends for researchers to share their articles more openly and in the interest of public good.
Neurotoxicity and gene‐expressed profile in brain‐injured mice caused by exposure to titanium dioxide nanoparticles
Authors: Ze Yuguan , Hu Renping , Wang Xiaochun , Sang Xuezi , Ze Xiao , Li Bi , Su Junju , Wang Yuan , Guan Ning , Zhao Xiaoyang , Gui Suxin , Zhu Liyuan , Cheng Zhe , Cheng Jie , Sheng Lei , Sun Qingqing , Wang Ling , Hong Fashui 
Published: March 2013

AbstractTitanium dioxide nanoparticles (TiO2 NPs) are widely used in toothpastes, sunscreens, and products for cosmetic purpose that the human use daily. Although the neurotoxicity induced by TiO2 NPs has been demonstrated, very little is known about the molecular mechanisms underlying the brain cognition and behavioral injury. In this study, mice were exposed to 2.5, 5, and 10 mg/kg body weight (BW) TiO2 NPs by nasal administration for 90 consecutive days, respectively, and their brains' injuries and brain gene‐expressed profile were investigated. Our findings showed that TiO2 NPs could be translocated and accumulated in brain, led to oxidative stress, overproliferation of all glial cells, tissue necrosis as well as hippocampal cell apoptosis. Furthermore, microarray data showed significant alterations in the expression of 249 known function genes, including 113 genes upregulation and 136 genes downregulation following exposure to 10 mg/kg BW TiO2 NPs, which were associated with oxidative stress, immune response, apoptosis, memory and learning, brain development, signal transduction, metabolic process, DNA repair, response to stimulus, and cellular process. Especially, significant increases in Col1a1, serine/threonine‐protein kinase 1, Ctnnb1, cysteine–serine‐rich nuclear protein‐1, Ddit4, Cyp2e1, and Krev interaction trapped protein 1 (Krit1) expressions and great decreases in DA receptor D2, Neu1, Fc receptor‐like molecules, and Dhcr7 expressions following long‐term exposure to TiO2 NPs resulted in neurogenic disease states in mice. Therefore, these genes may be potential biomarkers of brain toxicity caused by TiO2 NPs exposure, and the application of TiO2 NPs should be carried out cautiously. © 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 102A: 470–478, 2014.
Performance of conical abutment (Morse Taper) connection implants: A systematic review
Authors: Schmitt Christian M. , Nogueira‐Filho Getulio , Tenenbaum Howard C. , Lai Jim Yuan , Brito Carlos , Döring Hendrik , Nonhoff Jörg 
Published: March 2013

AbstractIn this systematic review, we aimed to compare conical versus nonconical implant–abutment connection systems in terms of their in vitro and in vivo performances. An electronic search was performed using PubMed, Embase, and Medline databases with the logical operators: “dental implant” AND “dental abutment” AND (“conical” OR “taper” OR “cone”). Names of the most common conical implant–abutment connection systems were used as additional key words to detect further data. The search was limited to articles published up to November 2012. Recent publications were also searched manually in order to find any relevant studies that might have been missed using the search criteria noted above. Fifty‐two studies met the inclusion criteria and were included in this systematic review. As the data and methods, as well as types of implants used was so heterogeneous, this mitigated against the performance of meta‐analysis. In vitro studies indicated that conical and nonconical abutments showed sufficient resistance to maximal bending forces and fatigue loading. However, conical abutments showed superiority in terms of seal performance, microgap formation, torque maintenance, and abutment stability. In vivo studies (human and animal) indicated that conical and nonconical systems are comparable in terms of implant success and survival rates with less marginal bone loss around conical connection implants in most cases. This review indicates that implant systems using a conical implant–abutment connection, provides better results in terms of abutment fit, stability, and seal performance. These design features could lead to improvements over time versus nonconical connection systems. © 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 102A: 552–574, 2014.
Recent climate and fire disturbance impacts on boreal and arctic ecosystem productivity estimated using a satellite‐based terrestrial carbon flux model
Authors: Yi Yonghong , Kimball John S. , Jones Lucas A. , Reichle Rolf H. , Nemani Ramakrishna , Margolis Hank A. 
Published: March 2013

AbstractWarming and changing fire regimes in the northern (≥45°N) latitudes have consequences for land‐atmosphere carbon feedbacks to climate change. A terrestrial carbon flux model integrating satellite Normalized Difference Vegetation Index and burned area records with global meteorology data was used to quantify daily vegetation gross primary productivity (GPP) and net ecosystem CO2 exchange (NEE) over a pan‐boreal/Arctic domain and their sensitivity to climate variability, drought, and fire from 2000 to 2010. Model validation against regional tower carbon flux measurements showed overall good agreement for GPP (47 sites: R = 0.83, root mean square difference (RMSD) = 1.93 g C m−2 d−1) and consistency for NEE (22 sites: R = 0.56, RMSD = 1.46 g C m−2 d−1). The model simulations also tracked post‐fire NEE recovery indicated from three boreal tower fire chronosequence networks but with larger model uncertainty during early succession. Annual GPP was significantly (p < 0.005) larger in warmer years than in colder years, except for Eurasian boreal forest, which showed greater drought sensitivity due to characteristic warmer, drier growing seasons relative to other areas. The NEE response to climate variability and fire was mitigated by compensating changes in GPP and respiration, though NEE carbon losses were generally observed in areas with severe drought or burning. Drought and temperature variations also had larger regional impacts on GPP and NEE than fire during the study period, though fire disturbances were heterogeneous, with larger impacts on carbon fluxes for some areas and years. These results are being used to inform development of similar operational carbon products for the NASA Soil Moisture Active Passive (SMAP) mission.
DOING BUSINESS: USING RATINGS TO DRIVE REFORM
Authors: Irwin David 
Published: March 2013

AbstractThe World Bank Doing Business results are widely used to promote reform—but they are based entirely on rankings that imply an equal spread between consecutive ranks and effectively ignores shortcomings in the research methodology. Rankings can mislead countries that have made an effort to reform can fall in the rankings even when they have improved if others have done even better. A scorecard based on ratings would provide a better overall picture of which countries are doing well and less well and enable countries to set more realistic targets for reform because they could then entirely focus on improving their rating. Copyright © 2013 John Wiley & Sons, Ltd.
Are changes in membrane lipids and fatty acid composition related to salt‐stress resistance in wild and cultivated barley?
Authors: Chalbi Najla , Hessini Kamel , Gandour Mhemmed , Mohamed Salma Naeit , Smaoui Abderrazek , Abdelly Chedly , Youssef Nabil Ben 
Published: March 2013

AbstractThe possibility to use membrane‐lipid measurements to screen barley genotypes for salt resistance was studied. The results showed that wild barley (Hordeum maritimum) displayed a typical halophytic response as compared to cultivated barley (Hordeum vulgare L. cv. Manel). Growth, tissue hydration, and photosynthetic activity were less affected by salinity in H. maritimum than in H. vulgare. The induced effects of long‐term NaCl treatment were reflected in root membrane lipids that remained relatively unchanged in wild barley, whilst they were significantly diminished with increasing salinity in H. vulgare. The levels of membrane‐lipid peroxidation and electrolyte leakage were changed only at high salt concentrations in H. maritimum whereas those of H. vulgare were considerably increased by lower salinity levels as a result of oxidative damage. These findings indicate that maintained membrane integrity (in H. Maritimum) may be considered a possible trait for salt resistance. However, membrane fluidity in H. vulgare was more increased than in H. maritimum. Thus, the unsaturated–to–saturated fatty acid ratio (UFAs : SFAs) and the double‐bond index (DBI), significantly increased in response to salt stress in cultivated barley while it did not change in H. maritimum. The changes in lipid unsaturation were predominantly due to increases in linolenic (C18:3), linoleic (C18:2), and oleic (C18:1) acids and decreases in stearic acid (C18:0). These results suggest that, in spite of being important for maintenance of membrane fluidity, the ability to increase unsaturation is not a determinant factor for salt resistance in barley species.
Use of meat hydrolyzate derived from tanning residues as plant biostimulant for hydroponically grown maize
Authors: Ertani Andrea , Pizzeghello Diego , Altissimo Adriano , Nardi Serenella 
Published: March 2013

AbstractTraditional agricultural production systems are evolving towards organic, sustainable, or environmentally friendly systems. Nonetheless, it is important to maintain crop yield and quality. For this purpose, the use of peptide‐based products from animal sources in agriculture could be a way to both reduce the disposal of animal‐processing residues and decrease the use of mineral fertilizers. The aim of our work was to obtain new insights into the biological effects of meat hydrolyzate (MH) derived from the hydrolysis of tanning residues. Maize (Zea mays L.) was grown hydroponically in a climatic chamber, and 12‐d‐old plants were treated for 48 h with different concentrations of the MH: 0 (control), 0.01 or 0.1 mL L–1. Both treatments enhanced plant growth and microelement concentrations in maize seedlings and decreased NO$ _3^- $, PO$ _4^{3-} $, and SO$ _4^{2-} $ concentrations compared to the control. The faster metabolic conversion of these ions was due to enzyme activities of nitrogen (nitrate reductase, nitrite reductase, glutamine synthetase, glutamate synthase, and aspartate aminotransferase) and carbon metabolism (malate dehydrogenase, isocitrate dehydrogenase, and citrate synthase). The gene transcription for these enzymes was in line with their activities. The effects of MH could partly be ascribed to endogenous indole‐3‐acetic acid and partly to amino acids and small peptides detected in the tested compound. This study shows that tanning‐process residues can be recycled and used in agriculture.
Rate Coefficients for the Gas‐Phase Reactions of Chlorine Atoms with Cyclic Ethers at 298 K
Authors: Alwe H. D. , Walawalkar M. , Sharma A. , Pushpa K. K. , Dhanya S. , Naik P. D. 
Published: March 2013

ABSTRACTRate coefficients of reactions of Cl atoms with cyclic ethers, tetrahydropyran (THP), tetrahydrofuran (THF), and dihydrofurans (2,5‐DHF and 2,3‐DHF) have been measured at 298 K using a relative rate method. The relative rate ratios for THP and THF are 0.80 ± 0.05 and 0.80 ± 0.08, respectively, with n‐hexane as the reference molecule. The relative rate ratios for THF and 2,5‐DHF with n‐pentane as the reference molecule are 0.95 ± 0.07 and 1.73 ± 0.06, respectively, and for 2,5‐DHF with 1‐butene as reference is 1.38 ± 0.05. The average values of the rate coefficients are (2.52 ± 0.36), (2.50 ± 0.39), and (4.48 ± 0.59) × 10−10 cm3 molecule−1 s−1 for THP, THF, and 2,5‐DHF, respectively. The errors quoted here for relative rate ratios are 2σ of the statistical variation in different sets of experiments. These errors, combined with the reported errors of the reference rate coefficients using the statistical error propagation equation, are the quoted errors for the rate coefficients. In the case of 2,3‐DHF, after correcting for the dark reaction with CH3COCl and assuming no interference from other radical reactions, a relative rate ratio of 0.85 ± 0.16 is obtained with respect to cycloheptene, corresponding to a rate coefficient of (4.52 ± 0.99) × 10−10 cm3 molecule−1 s−1. Unlike cyclic hydrocarbons, there is no increase with increasing number of CH2 groups in these cyclic ethers whereas there is an increase in the rate coefficient with unsaturation in the ring. An attempt is also made to correlate the rate coefficients of cyclic hydrocarbons and ethers with the molecular size as well as HOMO energy.
On generalised subnormal subgroups of finite groups
Authors: Ballester‐Bolinches A. , Beidleman James , Feldman A. D. , Ragland M. F. 
Published: March 2013

AbstractLet \documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}${\mathfrak {F}}$\end{document} be a formation of finite groups. A subgroup M of a finite group G is said to be \documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}${\mathfrak {F}}$\end{document}‐normal in G if \documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}$G/{\mbox{Core}_{G}(M)}$\end{document} belongs to \documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}${\mathfrak {F}}$\end{document}. A subgroup U of a finite group G is called a K‐\documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}$\mathfrak {F}$\end{document}‐subnormal subgroup of G if either U = G or there exist subgroups U = U0 ≤ U1 ≤ … ≤ Un = G such that Ui − 1 is either normal or \documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}${\mathfrak {F}}$\end{document}‐normal in Ui, for i = 1, 2, …, n. The K‐\documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}$\mathfrak {F}$\end{document}‐subnormality could be regarded as the natural extension of the subnormality to formation theory and plays an important role in the structural study of finite groups. The main purpose of this paper is to analyse classes of finite groups whose K‐\documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}$\mathfrak {F}$\end{document}‐subnormal subgroups are exactly the subnormal ones. Some interesting extensions of well‐known classes of groups emerge.
A two‐year randomized controlled trial of progressive resistance exercise for Parkinson's disease
Authors: Corcos Daniel M. , Robichaud Julie A. , David Fabian J. , Leurgans Sue E. , Vaillancourt David E. , Poon Cynthia , Rafferty Miriam R. , Kohrt Wendy M. , Comella Cynthia L. 
Published: March 2013

ABSTRACTThe effects of progressive resistance exercise (PRE) on the motor signs of Parkinson's disease have not been studied in controlled trials. The objective of the current trial was to compare 6‐, 12‐, 18‐, and 24‐month outcomes of patients with Parkinson's disease who received PRE with a stretching, balance, and strengthening exercise program. The authors conducted a randomized controlled trial between September 2007 and July 2011. Pairs of patients matched by sex and off‐medication scores on the Unified Parkinson's Disease Rating Scale, motor subscale (UPDRS‐III), were randomly assigned to the interventions with a 1:1 allocation ratio. The PRE group performed a weight‐lifting program. The modified fitness counts (mFC) group performed a stretching, balance, and strengthening exercise program. Patients exercised 2 days per week for 24 months at a gym. A personal trainer directed both weekly sessions for the first 6 months and 1 weekly session after 6 months. The primary outcome was the off‐medication UPDRS‐III score. Patients were followed for 24 months at 6‐month intervals. Of 51 patients, 20 in the PRE group and 18 in the mFC group completed the trial. At 24 months, the mean off‐medication UPDRS‐III score decreased more with PRE than with mFC (mean difference, −7.3 points; 95% confidence interval, −11.3 to −3.6; P<0.001). The PRE group had 10 adverse events, and the mFC group had 7 adverse events. PRE demonstrated a statistically and clinically significant reduction in UPDRS‐III scores compared with mFC and is recommended as a useful adjunct therapy to improve Parkinsonian motor signs. © 2013 Movement Disorder Society
Coplanar waveguide‐FED planar spiral antenna with integrated impedance transformer
Authors: Vahidpoor Zeynab , Forooraghi Keyvan , Fotowat‐Ahmady Ali , Atlasbaf Zahra 
Published: March 2013

AbstractA new planar spiral antenna with integrated impedance transformer is presented which needs no external balun and can be fed by a coplanar waveguide.The proposed structure has a return loss of <−10 dB over a broad bandwidth of 0.5–5 GHz that is suitable for cognitive radio applications. The effects of different spiral and transformer parameters are investigated through various simulations. A case of the proposed antenna is fabricated, and measurement results are presented including return loss, gain, and radiation patterns. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1338–1341, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27535
Accurate resonant frequency of isosceles right‐angled triangular patch antenna
Authors: Maity Sudipta , Gupta Bhaskar 
Published: March 2013

AbstractDue to high quality factor compared to other regular well known shaped resonators, triangular resonators, and/or radiators attract much attention recently. The development of triangular geometry (except equilateral) is still in its early stages of research due to lack of proper theory. In this article, an isosceles right‐angled triangular microstrip antenna (TMA) is analyzed theoretically using well known cavity model. Internal field components are derived. An expression for predicting resonant frequency is obtained. Results are compared with published results to show the correctness of our theory. A simple expression for computing effective side length of isosceles right‐angled TMA is provided. A prototype is also fabricated to verify this theory. The error between theoretical and experimental resonant frequency is 0.0773%. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1306–1308, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27536