bluuebunny/crossref_metadata_2025_split huggingface dataset:
Long‐range wireless sensor networks with transmit‐only nodes and software‐defined receivers
Authors: Huebner Christof , Cardell‐Oliver Rachel , Hanelt Stefan , Wagenknecht Tino , Monsalve Alvaro 
Published: October 2011

ABSTRACTWireless sensor networks for environmental monitoring and agricultural applications often face Long‐range requirements at low bit rates together with a large numbers of nodes. This paper presents the design and test of a novel wireless sensor network that combines a large radio range with very low power consumption and cost. Our asymmetric sensor network uses ultra‐low‐cost 40‐MHz transmitters and a sensitive software‐defined radio receiver with multi‐channel capability. Experimental radio range measurements in two different outdoor environments demonstrate a single‐hop range of up to 1.8 km. A theoretical model for radio propagation at 40 MHz in outdoor environments is proposed and validated with the experimental measurements. The reliability and fidelity of network communication over longer periods is evaluated with a deployment for distributed temperature measurements. Our results demonstrate the feasibility of the transmit‐only low‐frequency system design approach for future environmental sensor networks. Although there have been several papers proposing the theoretical benefits of this approach, to the best of our knowledge, this is the first paper to provide experimental validation of such claims. Copyright © 2011 John Wiley & Sons, Ltd.
Determination of cobalt marker in cow ruminal fluid by EDXRF and SRTXRF
Authors: de Almeida Eduardo , Rogério Massoni Paulo , Menegário Amauri Antonio , Leite Laudi Cunha , Duarte Lanna Dante Pazzanese , do Nascimento Filho Virgílio Franco 
Published: October 2011

AbstractThis article describes a comparison of conventional energy‐dispersive X‐ray fluorescence (EDXRF) and synchrotron radiation total‐reflection X‐ray fluorescence (SRTXRF) for Co determination in ruminal fluid from Holstein cow. This element is used as marker for animal nutrition studies. For EDXRF, 200 µl of the sample were dried on 6.35 µm Mylar film at 60 °C. The excitation was carried out using an X‐ray tube with Mo target and Zr filter operated at 30 kV/20 mA. For SRTXRF, 10 µl of the sample were pipetted on a Lucite carrier and dried at 60 °C. In both the techniques, Ga was used as internal standard and the acquisition time was 200 s. The trueness of both techniques was evaluated through the standard addition method, the recoveries obtained by SRTXRF and EDXRF were 76 and 99%, and the limits of detection, 13 and 240 µg l−1, respectively. Copyright © 2011 John Wiley & Sons, Ltd.
Yeast Fps1 glycerol facilitator functions as a homotetramer
Authors: Beese‐Sims Sara E. , Lee Jongmin , Levin David E. 
Published: October 2011

AbstractThe Saccharomyces cerevisiae Fps1 glycerol channel is a member of the major intrinsic protein (MIP) family of plasma membrane channel proteins that functions in osmoregulatory pathways to transport glycerol passively out of the cell. The MIP family is subdivided into members that are selectively permeable to water (aquaporins) and those permeated by glycerol (aquaglyceroporins or glycerol facilitators). Although aquaporins function as homo‐tetramers with each monomer possessing its own channel, previous studies have suggested that aquaglyceroporins may function as monomers. Here we provide both genetic and biochemical evidence that Fps1 functions as a homotetramer to regulate glycerol transport in yeast. Copyright © 2011 John Wiley & Sons, Ltd.
An integrative review of sensory marketing: Engaging the senses to affect perception, judgment and behavior
Authors: Krishna Aradhna 
Published: October 2011

AbstractI define “sensory marketing” as “marketing that engages the consumers' senses and affects their perception, judgment and behavior.” From a managerial perspective, sensory marketing can be used to create subconscious triggers that characterize consumer perceptions of abstract notions of the product (e.g., its sophistication or quality). Given the gamut of explicit marketing appeals made to consumers every day, subconscious triggers which appeal to the basic senses may be a more efficient way to engage consumers. Also, these sensory triggers may result in consumers' self‐generation of (desirable) brand attributes, rather than those verbally provided by the advertiser. The understanding of these sensory triggers implies an understanding of sensation and perception as it applies to consumer behavior—this is the research perspective of sensory marketing. This review article presents an overview of research on sensory perception. The review also points out areas where little research has been done, so that each additional paper has a greater chance of making a bigger difference and sparking further research. It is quite apparent from the review that there still remains tremendous need for research within the domain of sensory marketing—research that can be very impactful.
The efficacy of mindfulness-based cognitive therapy in recurrent depressed patients with and without a current depressive episode: a randomized controlled trial
Authors: van Aalderen J. R. , Donders A. R. T. , Giommi F. , Spinhoven P. , Barendregt H. P. , Speckens A. E. M. 
Published: October 2011

BackgroundThe aim of this study is to examine the efficacy of mindfulness-based cognitive therapy (MBCT) in addition to treatment as usual (TAU) for recurrent depressive patients with and without a current depressive episode.MethodA randomized, controlled trial comparing MBCT+TAU (n=102) with TAU alone (n=103). The study population consisted of patients with three or more previous depressive episodes. Primary outcome measure was post-treatment depressive symptoms according to the Hamilton Rating Scale for Depression. Secondary outcome measures included the Beck Depression Inventory, rumination, worry and mindfulness skills. Group comparisons were carried out with linear mixed modelling, controlling for intra-group correlations. Additional mediation analyses were performed. Comparisons were made between patients with and without a current depressive episode.ResultsPatients in the MBCT+TAU group reported less depressive symptoms, worry and rumination and increased levels of mindfulness skills compared with patients receiving TAU alone. MBCT resulted in a comparable reduction of depressive symptoms for patients with and without a current depressive episode. Additional analyses suggest that the reduction of depressive symptoms was mediated by decreased levels of rumination and worry.ConclusionsThe study findings suggest that MBCT is as effective for patients with recurrent depression who are currently depressed as for patients who are in remission. Directions towards a better understanding of the mechanisms of action of MBCT are given, although future research is needed to support these hypotheses.
Why Was a Wealth Tax for the UK Abandoned? Lessons for the Policy Process and Tackling Wealth Inequality
Authors: GLENNERSTER HOWARD 
Published: October 2011

AbstractThe distribution of wealth is widening in many countries and with it the growing importance of inherited wealth. In 1974, a Labour Government came to power in the United Kingdom committed to introducing an annual wealth tax. It left office without doing so. Using the official archives of the time and those of a key advisor this paper traces both the origins of the policy and its fate at the hands of the civil service. It explores two related questions. What does this experience tell us about the role of the civil service in the policy process in the UK and what lessons might be learned by those wishing to tackle the issue of widening wealth disparities today?
The Effect of Non-Constant Young's Modulus in Modelling of Tension and Compression of Superelastic NI-TI Shape Memory Alloys
Authors: Puksic Andrej , Kunavar Janez , Brojan Miha , Kosel Franc 
Published: October 2011

ABSTRACTMany unresolved issues remain in the field of modelling of shape memory alloys. In this paper the problem of unequal elastic properties of austenite and martensite is addressed. We propose a modification of the micromechanical material model that enables the application of different Young's modulus for austenite and martensite. The corresponding computational model for the application of the micromechanical approach to modeling of superelasticity in shape memory alloys is demonstrated. Material properties for Ni-Ti alloy (50.8 at.% Ni) obtained from literature and from our own experiments were applied to the model and a sample calculation of a 3D model subjected to uniaxial loading was performed. The results were compared to experimental results obtained from tensile and compressive tests. In general the presented model predicts well the level of the superelastic stress plateau and maximum transformation strain in tension. The agreement in compression is worse but the overall characteristics of the tension-compression asymmetry are predicted correctly.
Cationic State Distributions over Chlorophyll Pairs in Photosystem I and II
Authors: Saito Keisuke , Ishikita Hiroshi 
Published: October 2011

AbstractPhotosystem I (PSI) and II (PSII) possess chlorophyll pairs P~A~/P~B~ and P~D1~/P~D2~, respectively. These chlorophylls are the primary electron donors in the light-induced electron transfer. After the electron transfer, the radical cation remains on these chlorophyll pairs, forming [P~A~/P~B~]^·+^ and [P~D1~/P~D2~]^·+^. The positive charge distributions over the two chlorophylls were reported to be 10/90-50/50 for P~A~^·+^/P~B~^·+^ [1,2] and 70/30-80/20 for P~D1~^·+^/P~D2~^·+^ [3,4]. To clarify the origin of the distributions, we calculated ratios of P~A~^·+^/P~B~^·+^ and P~D1~^·+^/P~D2~^·+^ with a quantum mechanical/molecular mechanical (QM/MM) approach and the redox potentials (E~m~) of monomeric chlorophylls P~A~, P~B~, P~D1~, and P~D2~ with an electrostatic continuum-model approach, using the crystal structures of PSI [5] and PSII [6].1) Our QM/MM calculation reproduced the experimentally measured ratios of P~A~^·+^/P~B~^·+^ [1,2] and P~D1~^·+^/P~D2~^·+^ [3,4]. The calculated ratios were strongly correlated with the calculated E~m~ values. 2) We analyzed residues on puseudo-symmetrical subunit pairs PsaA/PasB and D1/D2 that shifted E~m~ of P~A~, P~B~, P~D1~, and P~D2~ and identified the residue pairs responsible for the P~A~^·+^/P~B~^·+^ and the P~D1~^·+^/P~D2~^·+^ ratios. In PSII, the difference in the electrostatic protein environments between D1 and D2 was significant in determining the P~D1~^·+^/P~D2~^·+^ ratio, whereas geometric differences between P~A~ and P~B~ (P~A~ as the C13^2^ epimer of chlorophyll a and the H-bond pattern) played a role in determining the P~A~^·+^/P~B~^·+^ ratio in PSI.References:[1] A. N. Webber, W. Lupitz, Biochim. Biophys. Acta. 1507 (2001) 61.[2] M. Pantelidou, P. R. Chitnis et al., Biochemistry 43 (2004) 8380.[3] I. H. Davis, P. Heathcote et al., Biochim. Biophys. Acta. 1143 (1993) 183.[4] T. Okubo, T. Tomo et al., Biochemistry 46 (2007) 4390.[5] P. Jordan, P. Fromme et al., Nature 411 (2001) 909.[6] Y. Umena, K. Kawakami et al., Nature 473 (2011) 55.
The Integration of Lexical, Syntactic, and Discourse Features in Bilingual Adolescents' Writing: An Exploratory Approach
Authors: Danzak Robin L. 
Published: October 2011

Purpose
The purpose of this study was to assess the bilingual writing of adolescent English language learners (ELLs) using quantitative tools. Linguistic measures were applied to the participants' writing at the lexical, syntactic, and discourse levels, with the goal of comparing outcomes at each of these levels across languages (Spanish/English) and genres (expository/narrative).

Method
Twenty Spanish-speaking ELLs, ages 11–14 years, each produced 8 expository and narrative autobiographical texts. Texts were coded and scored for lexical sophistication, syntactic complexity, and overall text quality. Scores were analyzed using Friedman’s 2-way analysis of variance by ranks (Siegel & Castellan, 1988); resulting ranks were compared across languages and genre topics.

Results
The text topic impacted rank differences at all levels. Performance at the three levels was similar across languages, indicating that participants were emerging writers in both Spanish and English. The impact of genre was generally inconsequential at all levels.

Conclusion
Similar results across languages implied the potential transfer of writing skills. Overall, students appeared to apply a knowledge-telling strategy to writing rather than strategically planning, composing, and revising their writing. Finally, outcomes highlighted the synergistic relationships among linguistic levels in text composition, indicating a need to address the interaction of vocabulary, morphosyntax, and text-level structures in the instruction and assessment of ELL writing.
Do Developmental Communication Disorders Exist in the Signed Modality? Perspectives From Professionals
Authors: Quinto-Pozos David , Forber-Pratt Anjali J. , Singleton Jenny L. 
Published: October 2011

PurposeThis study focused on whether developmental communication disorders exist in American Sign Language (ASL) and how they might be characterized. ASL studies is an emerging field; educators and clinicians have minimal access to descriptions of communication disorders of the signed modality. Additionally, there are limited resources for assessing ASL acquisition. This article is designed to raise clinicians' awareness about developmental communication disorders in ASL and categorize types of atypicality that have been witnessed.MethodWe conducted 4 focus groups and one 1-on-1 interview with a total of 22 adults (7 Deaf, 15 hearing) who work at bilingual–bicultural (ASL–English) schools for the Deaf. Experiences of these educators and language professionals were analyzed qualitatively using a combination of grounded theory (Charmaz, 2001; Strauss & Corbin, 1998) and a modified van Kaam approach (Moustakas, 1994).ResultsParticipants confirmed observations of children with suspected communication disorders and considered the prevalence, possible etiologies, and psychosocial aspects of such disorders in ASL. They reported frustration at the lack of diagnostic tools for reliable identification and intervention strategies to be used in educational settings.ConclusionThis work provides us with practitioner accounts proving that developmental communication disorders do exist in ASL. Future reports will describe primary data from signers with atypical language attributes.
Addressing Clinician–Client Mismatch: A Preliminary Intervention Study With a Bilingual Vietnamese–English Preschooler
Authors: Pham Giang , Kohnert Kathryn , Mann Deanine 
Published: October 2011

Purpose
This project examined receptive vocabulary treatment outcomes in the two languages of a bilingual preschooler with moderate to severe language impairment.

Method
A series of single-subject experimental designs was used to compare English-only (EO) and bilingual (BI) approaches to receptive vocabulary treatment. The participant, Nam, was a boy age 3;11 (years;months) who was learning Vietnamese as a first language at home and English in his early childhood education program. Treatment was implemented by an EO interventionist using a computer interface and prerecorded audio files in Vietnamese and English. The dependent measure was the percentage of items that were correctly identified in each language.

Results
Combined studies revealed that the BI approach increased Nam’s attention to task and was as effective as the EO approach for increasing his receptive vocabulary in English. Nam made vocabulary gains in both treatment conditions; receptive vocabulary gains were evident in both Vietnamese and English.

Conclusion
This project showed that it is feasible for an EO clinician to promote gains in both the home and school languages of a BI child through creative collaborations with BI colleagues and the use of technology. Replication with additional participants and treatment activities is needed to make further generalizations.
Vibrational and orientational dynamics of water in aqueous hydroxide solutions
Authors: Hunger Johannes , Liu Liyuan , Tielrooij Klaas-Jan , Bonn Mischa , Bakker Huib 
Published: October 2011

We report the vibrational and orientational dynamics of water molecules in isotopically diluted NaOH and NaOD solutions using polarization-resolved femtosecond vibrational spectroscopy and terahertz time-domain dielectric relaxation measurements. We observe a speed-up of the vibrational relaxation of the O–D stretching vibration of HDO molecules outside the first hydration shell of OH− from 1.7 ± 0.2 ps for neat water to 1.0 ± 0.2 ps for a solution of 5 M NaOH in HDO:H2O. For the O–H vibration of HDO molecules outside the first hydration shell of OD−, we observe a similar speed-up from 750 ± 50 fs to 600 ± 50 fs for a solution of 6 M NaOD in HDO:D2O. The acceleration of the decay is assigned to fluctuations in the energy levels of the HDO molecules due to charge transfer events and charge fluctuations. The reorientation dynamics of water molecules outside the first hydration shell are observed to show the same time constant of 2.5 ± 0.2 ps as in bulk liquid water, indicating that there is no long range effect of the hydroxide ion on the hydrogen-bond structure of liquid water. The terahertz dielectric relaxation experiments show that the transfer of the hydroxide ion through liquid water involves the simultaneous motion of ∼7 surrounding water molecules, considerably less than previously reported for the proton.
Communication: Rigorous calculation of dissociation energies (D) of the water trimer, (H2O)3 and (D2O)3
Authors: Wang Yimin , Bowman Joel M. 
Published: October 2011

Using a recent, full-dimensional, ab initio potential energy surface [Y. Wang, X. Huang, B. C. Shepler, B. J. Braams, and J. M. Bowman, J. Chem. Phys. 134, 094509 (2011)]10.1063/1.3554905 together with rigorous diffusion Monte Carlo calculations of the zero-point energy of the water trimer, we report dissociation energies, D0, to form one monomer plus the water dimer and three monomers. The calculations make use of essentially exact zero-point energies for the water trimer, dimer, and monomer, and benchmark values of the electronic dissociation energies, De, of the water trimer [J. A. Anderson, K. Crager, L. Fedoroff, and G. S. Tschumper, J. Chem. Phys. 121, 11023 (2004)]10.1063/1.1799931. The D0 results are 3855 and 2726 cm−1 for the 3H2O and H2O + (H2O)2 dissociation channels, respectively, and 4206 and 2947 cm−1 for 3D2O and D2O + (D2O)2 dissociation channels, respectively. The results have estimated uncertainties of 20 and 30 cm−1 for the monomer plus dimer and three monomer of dissociation channels, respectively.
The potential for modifying plant volatile composition to enhance resistance to arthropod pests.
Authors: Åhman I. , Glinwood R. , Ninkovic V. 
Published: October 2011

Abstract

Plant volatiles provide herbivorous arthropods with information that allows them to discriminate between host and non-host plants. Volatiles may also indicate plant stress status, and natural enemies can use herbivore-induced plant volatiles as cues for prey location. Neighbouring plants may also make use of volatile cues to prepare for herbivore attack. Since both constitutive and inducible plant volatile emissions can be modified by plant breeding, the possibility exists to improve plant resistance against important pests both directly and indirectly via improved biological control. So far this approach has been tested only in the realm of research, predominantly using transgenic
Arabidopsis
with modified composition of terpenoids or C
6
green leaf compounds. However, several studies have shown that it is indeed possible both to reduce herbivory and to enhance natural enemy attraction simultaneously. If such effects can be translated into increased and more stable yields in important crops, this strategy might be explored by the plant breeding industry and eventually become available to plant growers in the form of resistant cultivars. There are, however, ecological challenges associated with this approach, and the modified plant volatile composition should preferably be inducible specifically by the target pests, or by field application of specific elicitors based on forecasts of pest attack.
Agricultural residues and energy crops as potentially economical and novel substrates for microbial production of butanol (a biofuel).
Authors: Qureshi N. 
Published: October 2011

Abstract

This review describes the production of acetone butanol ethanol (ABE) from a variety of agricultural residues and energy crops employing biochemical or fermentation processes. A number of organisms are available for this bioconversion including
Clostridium beijerinckii
P260,
C. beijerinckii
BA101,
Clostridium acetobutylicum
and
Clostridium saccharobutylicum
P262. Some of these strains (P260 and P262) were used in an industrial setting in South Africa. One of the major limitations of these cultures is that none of them produce greater than 30 g/l total ABE unless integrated with simultaneous product recovery to reduce the toxicity of accumulated products. These cultures can utilize both hexose and pentose sugars derived from lignocellulosic hydrolysates such as maize (corn) fibre, wheat straw (one of the novel substrates), barley straw, maize stover and switchgrass. Substrates such as Jerusalem artichoke, maize, rye, millet, molasses, potato, soya molasses and agricultural wastes can also be used by the cultures listed. Additional carbohydrates that can be used include dextrins, fructose, sucrose and lactose. It is recommended that cultures that can produce greater amounts of ABE per litre of culture broth be developed. In order to economize the process of butanol production by fermentation, process technologies have been developed that integrate lignocellulosic biomass hydrolysis, fermentation and simultaneous product recovery. It should be noted that in continuous process where a product was recovered simultaneously, 461.3 g/l ABE was produced from 1125 g sugar in a 1 litre culture volume.
Economic Implications of Agricultural Water Use in Eastern India
Authors: Xenarios Stefanos , Amarasinghe Upali , Sharma Bharat 
Published: October 2011

Abstract
The irrigation services are often state-subsidized in agrarian economies for the enhancement of agricultural productivity while they also target poverty alleviation. The agriculture-dependent states of India offer representative examples of undervalued irrigation services mainly sourced by canal networks. However, canal irrigation is nowadays lagging behind private groundwater initiatives but with significant costs which question the concept of low water pricing in agriculture. This paper assesses irrigation water costs in representative backward clusters of Bihar state in eastern India while the effects on different landholding groups are analysed. The results indicate that marginal landholders heavily rely on purchased water from unofficial markets while they pay the highest amount for irrigation. This is due to limited access in the canal network, possession of inefficient pumping systems and cultivation of crops with a high demand for water. However, acute policy reforms could drastically decrease water costs and improve agricultural productivity.