bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sensitivity of the interannual variability of mineral aerosol simulations to meteorological forcing dataset
Authors: Smith Molly B. , Mahowald Natalie M. , Albani Samuel , Perry Aaron , Losno Remi , Qu Zihan , Marticorena Beatrice , Ridley David A. , Heald Colette L. 
Published: March 2017

Abstract. Interannual variability in desert dust is widely observed and simulated, yet the sensitivity of these desert dust simulations to a particular meteorological dataset, as well as a particular model construction, is not well known. Here we use version 4 of the Community Atmospheric Model (CAM4) with the Community Earth System Model (CESM) to simulate dust forced by three different reanalysis meteorological datasets for the period 1990–2005. We then contrast the results of these simulations with dust simulated using online winds dynamically generated from sea surface temperatures, as well as with simulations conducted using other modeling frameworks but the same meteorological forcings, in order to determine the sensitivity of climate model output to the specific reanalysis dataset used. For the seven cases considered in our study, the different model configurations are able to simulate the annual mean of the global dust cycle, seasonality and interannual variability approximately equally well (or poorly) at the limited observational sites available. Overall, aerosol dust-source strength has remained fairly constant during the time period from 1990 to 2005, although there is strong seasonal and some interannual variability simulated in the models and seen in the observations over this time period. Model interannual variability comparisons to observations, as well as comparisons between models, suggest that interannual variability in dust is still difficult to simulate accurately, with averaged correlation coefficients of 0.1 to 0.6. Because of the large variability, at least 1 year of observations at most sites are needed to correctly observe the mean, but in some regions, particularly the remote oceans of the Southern Hemisphere, where interannual variability may be larger than in the Northern Hemisphere, 2–3 years of data are likely to be needed.
Effectieve regionale netwerken
Authors: Klaster Esther 
Published: March 2017

Effective regional networks. A study of networks promoted from the top down in the domain of education and the labor market
Regional networks are often used by the central government in the Netherlands as a way of translating national purposes into regional action. At the same time regional networks increasingly arise from the bottom up. In short, it gets busy in the region. This article describes research on regional networks encouraged by the national government to handle complex issues in the domain of education and the labor market. The central question of this article is the way in which stimulating regional cooperation can be used effectively by the central government. Thirteen networks are studied with the help of interviews, questionnaires and data from social networks. The research findings show that in these networks that are encouraged from the top down, there is a tension between achieving short-term results and building cooperative relations, and that a sense of urgency in the region is an important prerequisite for success. This calls for more bottom-up co-determination of the policy agenda and the pace. In addition, there appeared to be a strong overlap between seemingly separate networks, thematically as well as in terms of staffing, which again offers opportunities for creating synergy. The findings call for using these ‘meta networks’ in the formation of networks. Both notions lead to some strategies for the effective use of regional networks.
A revision and phylogenetic analysis of the millipede genus Oxidus Cook, 1911 (Polydesmida, Paradoxosomatidae)
Authors: Nguyen Anh D. , Korsós Zoltán , Jang Kuem-Hee , Hwang Ui-Wook 
Published: March 2017

The genus Oxidus Cook, 1911 is revised to contain five species, O. avia (Verhoeff, 1937), O. gigas (Attems, 1953), O. gracilis (C.L. Koch, 1847), O. riukiaria (Verhoeff, 1940), and “species inquirenda” O. obtusus (Takakuwa, 1942). A cosmopolitan species, O. gracilis, is widely found in temperate and sub-tropical regions over the world, but other species have limited distribution in restricted regions, e.g., O. gigas in northern Vietnam, O. riukiaria and O. avia in the Ryukyu Islands (Japan). Four species, O. gracilis, O. riukiaria, O. avia and O. gigas, are confirmed as different from each other in gonopod characters, coloration and body size. The status of the last species, O. obtusus, is still doubtful and requires examination of further fresh material. The phylogenetic relationships among species of Oxidus is analyzed using two fragments of the mitochondrial genes COI (Cytochrome c Oxidase subunit I) and 16S rRNA. Three species of Oxidus are clearly separated from each other; O. gigas and O. gracilis form a monophyletic sister group with O. riukiaria. The genus Oxidus is also monophyletic and more closely related to the genus Tylopus Jeekel, 1968 than to the genera Sellanucheza Enghoff, Golovatch & Nguyen, 2004 or Kronopolites Attems, 1914. In addition, an identification key to species of Oxidus is provided.
The willingness of conventional farmers to participate in animal welfare programmes: an empirical study in Germany
Authors: Heise H , Theuvsen L 
Published: March 2017

AbstractIn recent years, poor farm animal welfare (FAW) has been a continual focus of public criticism and, in many European countries, large segments of society have repeatedly demanded higher FAW standards. In spite of these demands, there are hardly any products from pure animal welfare programmes (AWPs) on the market. Given this background, farmers are a very important stakeholder group for the successful implementation of such programmes, but little is known about their attitudes towards the introduction of AWPs. For this study, 657 conventional farmers in Germany were questioned about FAW and AWPs via an online survey. Three clusters (farmer groups) were identified with respect to their attitudes towards AWPs and, based on these clusters, various target groups were determined for participation in AWPs. Cluster A (the ‘sceptical animal welfare opponents’) (n = 204) is characterised by strong opposition to AWPs and higher welfare standards in livestock husbandry. Farmers in this cluster will probably not take part in AWPs, especially because they do not consider AWPs profitable. Cluster B (the ‘undecided’) (n = 229) have diverse attitudes towards AWPs. As they do not reject the enhancement of animal welfare standards, these farmers may someday become willing to participate in AWPs. Cluster C, (the ‘marketconscious animal welfare friends’) (n = 224) have the most positive attitudes of the sample towards AWPs. However, even these farmers have diverse attitudes towards the monetary effects of AWP. Overall, they constitute the most important potential target group for AWPs as they indicate the highest willingness to take part in these programmes. The empirical results have important managerial implications and provide a starting point for the design of tailor-made strategies to increase the market penetration of AWPs.
Factors affecting the ability of sheep to rest during time in markets in Great Britain
Authors: Lambton SL , Brouwer A , Knowles TG , Richards G , Statham PTE , Walton J , Weeks CA 
Published: March 2017

AbstractIn Great Britain, more than eleven million animals are transported to or from livestock markets annually. Time spent at markets is considered by Defra (Department of Environment, Food and Rural Affairs) to be ‘neutral time’, ie potentially a rest period. However, sheep in markets are subject to many potential stressors, which may prevent them resting. Lying and ruminating behaviours were analysed from 1,638 behavioural scans of sheep in 279 pens in 23 markets across Great Britain. Likelihood of observing ≥ 1 animals lying down during a scan decreased as stocking density and activity outside the pen increased. Proportion of animals observed lying in a pen (when at least one animal was lying) increased as group size and stocking rate decreased. Likelihood of observing ≥ 1 animals ruminating increased when there was no activity around the pen, and as number of sheep in the pen increased. Proportion of animals observed ruminating in a pen (when at least one animal was ruminating) increased as stocking rate, number of sheep in the pen and activity outside the pen decreased. Proportion of sheep ruminating was greater where there was no activity, compared with where there was activity outside the pen. We suggest that in order to allow higher quality rest periods for sheep in markets, then markets should be organised so that activity around the pen is minimised, eg by filling the market from back to front so that, once penned, sheep are not passed repeatedly. Stocking densities should also be low enough to allow animals to lie if they wish, while groups sizes should not be so low as to increase fear responses.
Fatigue and Mood States in Nursing Home and Nonambulatory Home-Based Patients with Multiple Sclerosis
Authors: Younus Zilfah , Vaughn Caila B. , Sanai Shaik Ahmed , Kavak Katelyn S. , Gupta Sahil , Nadeem Muhammad , Teter Barbara E. , Noyes Katia , Zivadinov Robert , Edwards Keith , Coyle Patricia K. , Goodman Andrew , Weinstock-Guttman Bianca ,   on behalf of the New York State Multiple Sclerosis Consortium
Published: March 2017

Background:
Multiple sclerosis (MS) is a chronic, progressively disabling condition of the central nervous system. We sought to evaluate and compare mood states in patients with MS with increased disability residing in nursing homes and those receiving home-based care.

Methods:
We conducted a cross-sectional analysis of the New York State Multiple Sclerosis Consortium to identify patients with MS using a Kurtzke Expanded Disability Status Scale (EDSS) score of 7.0 or greater. The nursing home group was compared with home-based care patients regarding self-reported levels of loneliness, pessimism, tension, panic, irritation, morbid thoughts, feelings of guilt, and fatigue using independent-samples t tests and χ2 tests. Multivariate logistic regression analyses were used to investigate risk-adjusted differences in mood states.

Results:
Ninety-four of 924 patients with EDSS scores of at least 7.0 lived in a nursing home (10.2%). Nursing home patients were less likely to use disease-modifying therapy and had higher mean EDSS scores compared with home-based patients. However, nursing home patients were less likely than home-based patients to report fatigue (odds ratio [OR] for no fatigue, 3.8; 95% CI, 2.1–7.2), feeling tense (OR for no tension, 1.7; 95% CI, 1.1–2.7), and having feelings of pessimism (OR for no pessimism, 1.8; 95% CI, 1.2–2.8).

Conclusions:
The nursing home patients with MS were less likely to report fatigue, pessimism, and tension than those receiving home-based care. Further studies should examine ways of facilitating a greater degree of autonomy and decision-making control in MS patients receiving home-based care.
Psychometric Properties of a Clinical Strength Assessment Protocol in People with Multiple Sclerosis
Authors: Mañago Mark M. , Hebert Jeffrey R. , Schenkman Margaret 
Published: March 2017

Background:
Strength training in people with multiple sclerosis (MS) is an important component of rehabilitation, but it can be challenging for clinicians to quantify strength accurately and reliably. This study investigated the psychometric properties of a clinical strength assessment protocol using handheld dynamometry and other objective, quantifiable tests for the lower extremities and trunk in people with MS.

Methods:
This study determined discriminant validity between 25 participants with MS and 25 controls and between participants with MS who had higher versus lower disability; test-retest reliability across 7 to 10 days; and response stability. The protocol included handheld dynamometry measurements of ankle dorsiflexion, knee flexion and extension; hip flexion, extension, abduction, and adduction; and trunk lateral flexion. Muscular endurance tests were used to measure trunk extension, trunk flexion, and ankle plantarflexion.

Results:
The protocol discriminated between participants with MS and controls for all muscles tested (P &lt; .001–.003). The protocol also discriminated between low- and moderate-disability groups (P = .001–.046) for 80% of the muscles tested. Test-retest reliability intraclass correlation coefficients were high (0.81–0.97). Minimal detectable change as a percentage of the mean was 13% to 36% for 85% of muscles tested.

Conclusions:
This study provides evidence for the discriminant validity, test-retest reliability, and response stability of a strength assessment protocol in people with MS. This protocol may be useful for tracking outcomes in people with MS for clinical investigations and practice.
Der ägyptische Lautwandel zwischen “Ꜣ” und “ḥ”
Authors: Bojowald Stefan 
Published: March 2017

This contribution studies the Egyptian phonetic change between “Ꜣ” and “ḥ,” a question so far dealt with only marginally. Therefore, the phonetic change is considered here for the first time from a broader perspective. An important role has likely been played by the fact that both sounds belong to the laryngals. This phonetic change is also known from other Hamito–Semitic (Afro–Asiatic) languages—particularly Akkadian and Punic. Furthermore, the phenomenon continued in Coptic.
The investigation adduces two different types of material. First, the phonetic change is documented in eleven examples of writings of single words. In this way, a solid foundation is laid for the following procedure. Second, seventeen examples of plays on words are examined which confirm the influence of the phonetic change. These examples demonstrate that the phonetic change occurred in both directions.
Measurement of the 13C isotopic signature of methane emissions from northern European wetlands
Authors: Fisher Rebecca E. , France James L. , Lowry David , Lanoisellé Mathias , Brownlow Rebecca , Pyle John A. , Cain Michelle , Warwick Nicola , Skiba Ute M. , Drewer Julia , Dinsmore Kerry J. , Leeson Sarah R. , Bauguitte Stéphane J.‐B. , Wellpott Axel , O'Shea Sebastian J. , Allen Grant , Gallagher Martin W. , Pitt Joseph , Percival Carl J. , Bower Keith , George Charles , Hayman Garry D. , Aalto Tuula , Lohila Annalea , Aurela Mika , Laurila Tuomas , Crill Patrick M. , McCalley Carmody K. , Nisbet Euan G. 
Published: March 2017

AbstractIsotopic data provide powerful constraints on regional and global methane emissions and their source profiles. However, inverse modeling of spatially resolved methane flux is currently constrained by a lack of information on the variability of source isotopic signatures. In this study, isotopic signatures of emissions in the Fennoscandian Arctic have been determined in chambers over wetland, in the air 0.3 to 3 m above the wetland surface and by aircraft sampling from 100 m above wetlands up to the stratosphere. Overall, the methane flux to atmosphere has a coherent δ13C isotopic signature of −71 ± 1‰, measured in situ on the ground in wetlands. This is in close agreement with δ13C isotopic signatures of local and regional methane increments measured by aircraft campaigns flying through air masses containing elevated methane mole fractions. In contrast, results from wetlands in Canadian boreal forest farther south gave isotopic signatures of −67 ± 1‰. Wetland emissions dominate the local methane source measured over the European Arctic in summer. Chamber measurements demonstrate a highly variable methane flux and isotopic signature, but the results from air sampling within wetland areas show that emissions mix rapidly immediately above the wetland surface and methane emissions reaching the wider atmosphere do indeed have strongly coherent C isotope signatures. The study suggests that for boreal wetlands (>60°N) global and regional modeling can use an isotopic signature of −71‰ to apportion sources more accurately, but there is much need for further measurements over other wetlands regions to verify this.
Fractal density modeling of crustal heterogeneity from the KTB deep hole
Authors: Chen Guoxiong , Cheng Qiuming 
Published: March 2017

AbstractFractal or multifractal concepts have significantly enlightened our understanding of crustal heterogeneity. Much attention has focused on 1/f scaling natures of physicochemical heterogeneity of Earth crust from fractal increment perspective. In this study, fractal density model from fractal clustering point of view is used to characterize the scaling behaviors of heterogeneous sources recorded at German Continental Deep Drilling Program (KTB) main hole, and of special contribution is the local and global multifractal analysis revisited by using Haar wavelet transform (HWT). Fractal density modeling of mass accumulation generalizes the unit of rock density from integer (e.g., g/cm3) to real numbers (e.g., g/cmα), so that crustal heterogeneities with respect to source accumulation are quantified by singularity strength of fractal density in α‐dimensional space. From that perspective, we found that the bulk densities of metamorphic rocks exhibit fractal properties but have a weak multifractality, decreasing with the depth. The multiscaling natures of chemical logs also have been evidenced, and the observed distinct fractal laws for mineral contents are related to their different geochemical behaviors within complex lithological context. Accordingly, scaling distributions of mineral contents have been recognized as a main contributor to the multifractal natures of heterogeneous density for low‐porosity crystalline rocks. This finally allows us to use de Wijs cascade process to explain the mechanism of fractal density. In practice, the proposed local singularity analysis based on HWT is suggested as an attractive high‐pass filtering to amplify weak signatures of well logs as well as to delineate microlithological changes.
A toy model of tropical convection with a moisture storage closure
Authors: Masunaga Hirohiko , Sumi Yukari 
Published: March 2017

AbstractA time‐dependent, zero‐dimensional toy model is constructed to study the large‐scale variability in association with tropical moist convection. Case studies from sounding‐array observations are analyzed as a benchmark to test the model performance. The model predicts the vertical integral of vertical moisture advection decomposed into the deep convective and congestus/stratiform modes. A closure representing the consumption efficiency of water vapor into precipitation is introduced using the moisture storage ratio, or the degree to which the vertical moisture advection associated with each vertical mode accounts for moisture storage. The observations suggest that this moisture consumption is highly inefficient for the convective/stratiform mode while efficient for the deep convective mode. The model solution is interpreted as a delayed response to the diabatic forcing, unless the sum of the moisture storage ratio and gross moist stability is negative, in which case the system is unstable. Baseline experiments with a fixed moisture storage closure overall reproduce the vertical moisture advection and precipitation as observed, but fail to simulate a sharp pickup of precipitation in the well‐known moisture‐rainfall curve. This deficiency is eliminated when the moisture storage ratio is allowed to vary as convection intensifies and dissipates.
FracFit: A robust parameter estimation tool for fractional calculus models
Authors: Kelly James F. , Bolster Diogo , Meerschaert Mark M. , Drummond Jennifer D. , Packman Aaron I. 
Published: March 2017

AbstractAnomalous transport cannot be adequately described with classical Fickian advection‐dispersion equations (ADE) with constant coefficients. Rather, fractional calculus models may be used, which capture salient features of anomalous transport (e.g., skewness and power law tails). FracFit is a parameter estimation tool based on space‐fractional and time‐fractional models used by the hydrology community. Currently, four fractional models are supported: (1) space‐fractional advection‐dispersion equation (sFADE), (2) time‐fractional dispersion equation with drift (TFDE), (3) fractional mobile‐immobile (FMIM) equation, and (4) temporally tempered Lévy motion (TTLM). Model solutions using pulse initial conditions and continuous injections are evaluated using stable distributions or subordination integrals. Parameter estimates are extracted from measured breakthrough curves (BTCs) using a weighted nonlinear least squares (WNLS) algorithm. Optimal weights for BTCs for pulse initial conditions and continuous injections are presented. Two sample applications are analyzed: (1) pulse injection BTCs in the Selke River and (2) continuous injection laboratory experiments using natural organic matter. Model parameters are compared across models and goodness‐of‐fit metrics are presented, facilitating model evaluation.
Potential of satellite‐based land emissivity estimates for the detection of high‐latitude freeze and thaw states
Authors: Prakash Satya , Norouzi Hamid , Azarderakhsh Marzi , Blake Reginald , Khanbilvardi Reza 
Published: March 2017

AbstractReliable detection of freeze and thaw (FT) states is crucial for the terrestrial water cycle, biogeochemical transitions, carbon and methane feedback to the atmosphere, and for the surface energy budget and its associated impacts on the global climate system. This paper is novel in that for the first time a unique approach to examine the potential of passive microwave remotely sensed land emissivity and its added values of being free from the atmospheric effects and being sensitive to surface characteristics is being applied to the detection of FT states for latitudes north of 35°N. Since accurate characterizations of the soil state are highly dependent on land cover types, a novel threshold‐based approach specific to different land cover types is proposed for daily FT detection from the use of 3 years (August 2012 to July 2015) of the Advanced Microwave Scanning Radiometer‐2 land emissivity estimates. Ground‐based soil temperature observations are used as reference to develop threshold values for FT states. Preliminary evaluation of the proposed approach with independent ground observations over Alaska for the year 2015 shows that the use of land emissivity estimates for high‐latitude FT detection is promising.
Reply to comment by Añel on “Most computational hydrology is not reproducible, so is it really science?”
Authors: Hutton Christopher , Wagener Thorsten , Freer Jim , Han Dawei , Duffy Chris , Arheimer Berit 
Published: March 2017

AbstractIn this article, we reply to a comment made on our previous commentary regarding reproducibility in computational hydrology. Software licensing and version control of code are important technical aspects of making code and workflows of scientific experiments open and reproducible. However, in our view, it is the cultural change that is the greatest challenge to overcome to achieve reproducible scientific research in computational hydrology. We believe that from changing the culture and attitude among hydrological scientists, details will evolve to cover more (technical) aspects over time.