bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Maize Glutaredoxin Gene,Abphyl2,Regulates Shoot Meristem Size and Phyllotaxy
Authors: Yang Fang , Bui Huyen Thanh , Pautler Michael , Llaca Victor , Johnston Robyn , Lee Byeong-ha , Kolbe Allison , Sakai Hajime , Jackson David 
Published: January 2015

AbstractPhyllotaxy describes the geometric arrangement of leaves and is important for plant productivity. Auxin is well known to regulate phyllotactic patterns via PIN1-dependent auxin polar transport, and studies of maize (Zea mays) aberrant phyllotaxy1 (abph1) mutants suggest the importance of auxin and cytokinin signaling for control of phyllotaxy. However, whether additional regulators control these patterns is poorly understood. Here, we report a new dominant maize mutant, Aberrant phyllotaxy2 (Abph2), in which the shoot meristems are enlarged and the phyllotactic pattern switches from alternate to decussate. Map-based cloning revealed that the Abph2 mutation was caused by transposition of a glutaredoxin gene, MALE STERILE CONVERTED ANTHER1 (MSCA1), which gained an altered expression pattern in Abph2 mutant embryos. msca1 loss-of-function mutants have reduced meristem size and revealed a novel function of glutaredoxins in meristem growth. In addition, MSCA1 interacts with a TGA transcription factor, FASCIATED EAR4, suggesting a novel regulatory module for regulating shoot meristem size.
Cytoplasmic Nucleation and Atypical Branching Nucleation Generate Endoplasmic Microtubules inPhyscomitrella patens
Authors: Nakaoka Yuki , Kimura Akatsuki , Tani Tomomi , Goshima Gohta 
Published: January 2015

AbstractThe mechanism underlying microtubule (MT) generation in plants has been primarily studied using the cortical MT array, in which fixed-angled branching nucleation and katanin-dependent MT severing predominate. However, little is known about MT generation in the endoplasm. Here, we explored the mechanism of endoplasmic MT generation in protonemal cells of Physcomitrella patens. We developed an assay that utilizes flow cell and oblique illumination fluorescence microscopy, which allowed visualization and quantification of individual MT dynamics. MT severing was infrequently observed, and disruption of katanin did not severely affect MT generation. Branching nucleation was observed, but it showed markedly variable branch angles and was occasionally accompanied by the transport of nucleated MTs. Cytoplasmic nucleation at seemingly random locations was most frequently observed and predominated when depolymerized MTs were regrown. The MT nucleator γ-tubulin was detected at the majority of the nucleation sites, at which a single MT was generated in random directions. When γ-tubulin was knocked down, MT generation was significantly delayed in the regrowth assay. However, nucleation occurred at a normal frequency in steady state, suggesting the presence of a γ-tubulin-independent backup mechanism. Thus, endoplasmic MTs in this cell type are generated in a less ordered manner, showing a broader spectrum of nucleation mechanisms in plants.
The joint effects of personality and supervisory career mentoring in predicting occupational commitment
Authors: Arora Ridhi , Rangnekar Santosh 
Published: January 2015

Purpose– The purpose of this paper is to examine the joint effects of personality (agreeableness and conscientiousness) and perceived supervisory career mentoring (SCM) on occupational commitment (OC) in the Indian context. In addition, the role of SCM support as a predictor of OC was also analyzed.Design/methodology/approach– A cross-sectional survey-based research design was adopted using data from 121 employees of public and private sector organizations in North India.Findings– The results showed that the relationship between perceived SCM and OC was stronger for employees reporting high levels of agreeableness in contrast to low agreeableness. Further, perceived SCM support was observed as a significant predictor of OC in the Indian context.Practical implications– This study suggests that for fostering an occupationally committed workforce, it is critical for supervisory mentors to understand how to deal with employees of different personality traits. Further, supervisory mentors need to be trained and empowered to render vocational support to employees at all levels.Originality/value– The work advances the existing work on mentoring and vocational outcomes by demonstrating the crucial role of supervisory career support and personality interactions in predicting OC.
Post M&A ill-health
Authors: Makri Eleni , Ntalianis Filotheos 
Published: January 2015

Purpose– The current financial crisis in Greece has redefined the way organizations operate resulting in a dramatic increase in mergers and acquisitions (M&As). The purpose of this paper is twofold: first to explore, within the M&A context, the main effects of job-related stressors and perceived organizational support (POS) on merger survivors’ ill-health and second to examine the indirect links between these and commitment.Design/methodology/approach– Data were obtained from 140 employees of two merged financial institutions in Greece post-combination.Findings– The results indicated significant direct relationships between work-related stressors and POS and ill-health. As regards the indirect relationships, only the mediation link between organizational support, ill-health and commitment was supported.Practical implications– Implications, limitations and further research issues are discussed in light of the M&A context.Originality/value– The intention is to extend current stress and M&A literature findings (e.g. Cartwright and Cooper, 1993; Cartwrightet al., 2007), and further investigate the relationship between stressors and ill-health within a turbulent context, since little is known about the behavioral reactions arising as an outcome of M&As in a Greek setting. Thus, the unique contribution of this study is to examine this relationship in a double crisis context: the organizational crisis following the M&A and the financial crisis currently facing Greece, since the area of M&As in Greece has so far received little scholarly attention (Bellou, 2007, 2008).
Workplace fun matters … but what else?
Authors: Tews Michael J. , Michel John , Xu Shi , Drost Alex J. 
Published: January 2015

Purpose– The purpose of this paper is to extend research on fun in the workplace by focussing on its relationship with job embeddedness among Millennials. This research examined the influence of four dimensions of fun, including fun activities, manager support for fun, coworker socializing, and fun job responsibilities, on embeddedness. In addition, this research assessed the impact of fun relative to other aspects of the employment experience.Design/methodology/approach– Data were obtained from 234 full-time working Millennials via survey methodology.Findings– Fun job responsibilities were the most dominant predictor of embeddedness followed by perceived career opportunities and praise and rewards. The other dimensions of fun accounted for significant variance in embeddedness, yet their influence was more modest.Research limitations/implications– The research demonstrated that fun plays a role in enhancing Millennials’ embeddedness, accounting for significant additional variance beyond other important aspects of the employment experience. At the same time, some aspects of fun were more dominant predictors of embeddedness than others, and other aspects of the employment experience were more dominant predictors than certain aspects of fun. These findings should be interpreted in the context of the primary limitation that the data were cross-sectional.Practical implications– Workplace fun may play a role in enhancing embeddedness, but organizations should not lose sight of other human resource management practices.Originality/value– The present study examined the role of workplace fun in a more nuanced perspective by examining its relationship on embeddedness relative to other important constructs.
To what extent a “bad” job? Employee perceptions of job quality in community aged care
Authors: Clarke Marilyn 
Published: January 2015

Purpose
– The purpose of this paper is to explore how community aged care workers evaluate job quality using a job quality framework.

Design/methodology/approach
– The study uses a qualitative approach. Data were collected using semi-structured interviews and focus groups from a large aged care organisation.

Findings
– Perceptions of job quality are influenced by individual motivations, match between life-stage and work flexibility, as well as broader community views of the value of this type of work. Intrinsic factors (e.g. autonomy, job content) moderate the impact of extrinsic factors such as pay and job security.

Research limitations/implications
– The sample is relatively small and the study is based on data from one aged care organisation which may not reflect employment conditions in other organisations.

Practical implications
– Attraction and retention of community care workers can be improved by addressing factors associated with remuneration (including employment contracts and hours of work) and career structures. Skill and experience-based career structures would help build organisational capacity as well as making these jobs more attractive.

Social implications
– The demand for community care will continue to increase. Attracting, retaining and managing this workforce will be critical to meeting society’s expectations regarding the future care needs of older people.

Originality/value
– This research explores an under-researched workforce group in a critical area of aged care management. It highlights two key areas with the potential to improve employee perceptions of job quality and therefore address issues related to attraction, retention, job satisfaction and ultimately organisational performance.
FORUM: Dingoes can help conserve wildlife and our methods can tell
Authors: Nimmo Dale G. , Watson Simon J. , Forsyth David M. , Bradshaw Corey J. A. 
Published: January 2015

SummaryManagement of apex predators is among the most controversial wildlife management issues globally. InAustralia, some ecologists have advocated using the dingo,Canis dingo, as a tool for conservation management, due to evidence that they suppress invasive mesopredators.Hayward & Marlow (Journal of Applied Ecology, 51, 2014 and 835) questioned the capacity of dingoes to provide benefits to native biodiversity due to their inability to eradicate foxes and cats. They also argued that indices of abundance commonly used in studies of mesopredator release by dingoes (namely, track‐based indices) invalidate the conclusions of the studies. Hayward & Marlow caution conservation practitioners against incorporating dingoes into conservation programmes.Counter to their claims, we summarise research showing that the suppression of invasive mesopredators (cf. eradication) can enhance populations of native species and is therefore a meaningful conservation objective. We highlight literature supporting the hypothesis that dingoes suppress mesopredator abundance and activity, which in turn benefits native biodiversity.We show that Hayward & Marlow overlook many studies of carnivores that show track indices capture a large amount of the variation in the density of medium‐ and large‐sized carnivores.Synthesis and applications. Practitioners cannot afford to wait to act given the perilous state ofAustralia's mammal species, and we argue that the evidence is sufficiently strong to justify managing dingoes for biodiversity conservation.
Biomass–density data analysis: a comment on Cabaço et al. (2013)
Authors: Vieira Vasco M. N. C. S. , Leitão Francisco , Mateus Marcos 
Published: January 2015

Summary

Appropriate use of mathematics and statistics is fundamental for sound interpretations of ecological results and to prevent inaccurate conclusions.

Throughout the article by Cabaço et al. (2013) emerge cases of biased data analyses including absence of statistical tests, application of unsuited tests, inconsistent geometrical interpretation of xy data scatter, among others.

These biases congregated into incorrect conclusions including (i) reporting a generalized nutrient limitation of seagrass meadows, (ii) proposing the intraspecific biomass–density relation of seaweeds as an ecological indicator, when results report little more than randomness, thus suggesting this relation is unsuited as an ecological indicator; (iii) contradicting general ecological theory without any statistical evidence; and (iv) misassociating their results to the ones by other authors.

Synthesis. In order to help ecological researchers pinpoint sources of bias, we point out mistakes related to xy data analysis in Cabaço et al. (2013) that can occur in any subject area and flag others specific to biomass‐density relations.
Shelf Life Determination of Sliced Portuguese Traditional Blood Sausage—Morcela de Arroz de Monchique through Microbiological Challenge and Consumer Test
Authors: Pereira Jorge A. , Silva Pedro , Matos Teresa J. S. , Patarata Luís 
Published: January 2015

AbstractMorcela de Arroz (MA) is a ready‐to‐eat blood and rice cooked sausage produced with pork, blood, rice, and seasonings, stuffed in natural casing and cooked above 90 °C/30 min. It is commercialized whole, not packed, with a restricted shelf life (1 wk/0 to 5 °C). The objective of this work was to establish sliced MA shelf life considering both the behavior of L. monocytogenes through a microbiological challenge test (MCT) and the consumer acceptability of MA stored: vacuum packed (VP), modified atmosphere packed (MAP: 80% CO2/20% N2), and aerobic packed (AP). The MCT was conducted inoculating ±3 log CFU/g of L. monocytogenes cell suspension on the MA slices. Packaged samples were stored at 3 ± 1 °C and 7 ± 1 °C until 20 d. At 3 ± 1 °C, L. monocytogenes behavior was not affected by packaging or storage time. At 7 ± 1 °C, the pathogen increased nearly 1 log CFU/g in the first 4 d. L. monocytogenes populations in AP were higher (P < 0.05) than in MAP. The pathogen may grow to hazardous levels in the 1st days if a temperature abuse occurs. Considering the acceptability by the consumers, the shelf life of MA stored at 3 ± 1 °C was 4.4 d for AP, 8.1 d for VP, and 10.4 d for MAP. The sensory shelf life established based on sensory spoilage is shorter than the shelf life to maintain the population of L. monocytogenes in safe levels.
Effectiveness of Hydrothermal‐Calcium Chloride Treatment and Chitosan on Quality Retention and Microbial Growth during Storage of Fresh‐Cut Papaya
Authors: Ayón‐Reyna Lidia E. , Tamayo‐Limón Ransés , Cárdenas‐Torres Feliznando , López‐López Martha E. , López‐Angulo Gabriela , López‐Moreno Héctor S. , López‐Cervántes Jaime , López‐Valenzuela José A. , Vega‐García Misael O. 
Published: January 2015

AbstractRapid degradation of fresh‐cut papaya limits its marketability. Hydrothermal treatments in combination with a calcium dip, applied to whole fruit before slicing, and also the application of chitosan as a coating film, have been found to have very good results in maintaining the quality of fresh‐cut fruits. Based on these considerations, the aim of this study was to evaluate the effect of hydrothermal treatment (HT; 49 °C, 25 min) containing calcium chloride (Ca; 1%, w/v) followed by dipping in chitosan (Chit; 1%, w/v, 3 min) on the physical, chemical, and microbial qualities of papaya slices stored at 5 °C for 10 d. Pulp color, firmness, ascorbic acid, total phenolics, β‐carotene, and lycopene were evaluated every 2 d while the microbial quality (mesophilics, psychrophilics, molds, and yeasts) was evaluated every 5 d. Fruit treated with HT‐Ca and HT‐Ca + Chit showed better color and firmness retention than Control and Chit. Papaya slices treated with HT‐Ca + Chit had higher nutritional content and lower microbial growth at the end of storage. The application of the HT‐Ca + Chit could be used to reduce deterioration processes, maintaining physical, chemical, and microbial qualities and increasing the shelf life of fresh‐cut papaya stored at 5 °C.
“Potential Health Benefits of Lunasin: A Multifaceted Soy‐Derived Bioactive Peptide”
Authors: Lule Vaibhao Kisanrao , Garg Sheenam , Pophaly Sarang Dilip , Hitesh  , Tomar Sudhir Kumar 
Published: January 2015

AbstractBioactive peptides are small protein fragments derived from enzymatic hydrolysis of food proteins, fermentation with proteolytic starter cultures, and gastrointestinal digestion. These peptides have positive impacts on a number of physiological functions in living beings. Lunasin, a soy‐derived bioactive peptide, is one of the most promising among them. Lunasin encoded within 2S albumin (GM2S‐1) gene, identified as a novel peptide extracted from soybean seed. It is composed of 43 amino acid residues with a molecular weight of 5.5 kDa. Extensive scientific studies have shown that lunasin possesses inherent antioxidative, anti‐inflammatory, anticancerous properties and could also play a vital role in regulating of cholesterol biosynthesis in the body. Its high bioavailability and heat stable nature allow its potential use as dietary supplement. The present review summarizes some of the potential health and therapeutic benefits of lunasin reported hitherto.
The Antimicrobial Effect of Spice‐Based Marinades against Campylobacter jejuni on Contaminated Fresh Broiler Wings
Authors: Zakarienė Gintarė , Rokaitytė Anita , Ramonaitė Sigita , Novoslavskij Aleksandr , Mulkytė Kristina , Zaborskienė Gintarė , Malakauskas Mindaugas 
Published: January 2015

AbstractThe antimicrobial effect of spice‐based marinades against Campylobacter jejuni on inoculated fresh broiler wings was investigated. Experiments were carried out with 1 strain of C. jejuni and 6 marinades. Four experimental marinades were composed for the study and contained spices (thyme, rosemary, basil, marjoram, and so on) and different combination of bioactive compounds. Two marinades were commercial and contained spices (black pepper, sweet red pepper, and so on) and chemical additives (monosodium glutamate, sodium diacetate, calcium lactate), 1 commercial marinade was also enriched with bioactive compounds (linalool, cinnamaldehyde, lactic acid). Total aerobic bacterial count was examined to estimate the possible effect of tested marinades on the shelf‐life of marinated broiler wings. Study revealed that thyme‐based marinade was the most effective against C. jejuni on broiler wings and reduced the numbers of campylobacters by 1.04 log colony forming unit (CFU)/g (P ≤ 0.05) during storage for 168 h at 4 °C temperature. Moreover, it was more effective against C. jejuni than commercial marinade with 0.47 log CFU/g (P ≤ 0.05) reduction effect. Both experimental and commercial marinades had very similar effect on the total aerobic bacterial count. Although experimental and commercial marinades had different effect on pH of broiler wings, this parameter did not show a major impact on the antimicrobial effect of tested marinades (P ≥ 0.05). Our study shows that experimental natural thyme‐based marinade can reduce numbers of C. jejuni more effectively than tested commercial marinades.
The transcriptional regulation of the glyoxylate cycle in SAR11 in response to iron fertilization in the Southern Ocean
Authors: Beier Sara , Gálvez María J. , Molina Veronica , Sarthou Géraldine , Quéroué Fabien , Blain Stephane , Obernosterer Ingrid 
Published: January 2015

SummaryThe tricarboxylic acid (TCA) cycle is a central metabolic pathway that is present in all aerobic organisms and initiates the respiration of organic material. The glyoxylate cycle is a variation of the TCA cycle, where organic material is recycled for subsequent assimilation into cell material instead of being released as carbon dioxide. Despite the importance for the fate of organic matter, the environmental factors that induce the glyoxylate cycle in microbial communities remain poorly understood. In this study, we assessed the expression of isocitrate lyase, the enzyme that induces the switch to the glyoxylate cycle, of the ubiquitous SAR11 clade in response to natural iron fertilization in the Southern Ocean. The cell‐specific transcriptional regulation of the glyoxylate cycle, as determined by the ratio between copy numbers of isocitrate lyase gene transcripts and isocitrate genes, was consistently lower in iron fertilized than in high‐nutrient, low chlorophyll waters (by 2.4‐ to 16.5‐fold). SAR11 cell‐specific isocitrate lyase gene transcription was negatively correlated to chlorophyll a, and bulk bacterial heterotrophic metabolism. We conclude that the glyoxylate cycle is a metabolic strategy for SAR11 that is highly sensitive to the degree of iron and carbon limitation in the marine environment.
Discretionary Disclosures to Risk‐Averse Traders: A Research Note
Authors: Jorgensen Bjorn N. , Kirschenheiter Michael T. 
Published: January 2015

AbstractVerrecchia (1983) investigates a manager's incentives for costly, discretionary disclosure of his information to risk‐averse traders when the functional form of prices is exogenously specified. We extend Verrecchia (1983) by deriving the endogenously determined functional form of prices that would arise when all traders have constant risk tolerance. We show that these endogenously determined prices are inconsistent with the assumed prices in Verrecchia (1983) when the manager elects to not disclose. We derive the manager's disclosure strategy for our setting and extend the comparative static results in Verrecchia (1990) for risk‐neutral traders to a setting where traders have constant risk tolerance and prices are endogenously derived. Further, in our setting, discretionary disclosure does not affect how traders price risk of different outcomes. Also, we offer a representation of risk‐averse traders' prices using risk‐adjusted distributions. Finally, these results provide implications for empirical‐archival discretionary disclosure studies.
Acoustic neuroma manifesting as toothache and numbness
Authors: Lam R 
Published: January 2015

ABSTRACTAcoustic neuroma, also known as vestibular schwannoma, is a rare benign brainstem tumour involving the abnormal growth and proliferation of Schwann cells surrounding the vestibular division of the eighth cranial nerve. Although the most common symptoms are non‐dentally related, there are instances where diagnosis of this potentially life‐threatening condition is triggered by an emergency presentation to the dentist for the most trivial of reasons. A 56‐year‐old male presented to a dental clinic complaining of a toothache. Following history taking, examination and radiographs a carious lower right molar was extracted. The patient reported relief but later described post‐extraction numbness on the opposite side (left) of his lower jaw that could not be explained by anatomical principles or previous dental history. Further investigations revealed an acoustic neuroma as the underlying cause. This case highlights that not all signs and symptoms that occur in the mouth are abnormalities within the mouth. In particular, this case underscores the importance of recognizing that the spontaneous onset of certain symptoms may be due to significant non‐dental pathology. Any numbness over the distribution of the trigeminal nerve must be investigated. The importance of the basic sciences and referring will also be emphasized.