Miracle-dz/UniFAR-FTUs huggingface dataset:
Effect of wheat stem sawfly damage on yield and quality of selected Canadian spring wheat.

The wheat stem sawfly, Cephus cinctus Norton (Hymenoptera: Cephidae), has reached outbreak status at most locations in the southern Canadian prairies. Solid-stemmed wheat, Triticum aestivum L. , cultivars, which are less susceptible to damage, remain the primary management option. This article quantifies the effect of wheat stem sawfly damage on grain yield and quality at harvest and determines how cultivar selection affects harvest losses. Solid-stemmed cultivars were compared with hollow-stemmed cultivars and with blends of a 1:1 ratio of each. The hollow-stemmed cultivars with the exception of'McKenzie', which had intermediate levels of stem cutting, were all significantly more susceptible to stem cutting than solid-stemmed cultivars. Cultivar blends had lower damage but were still significantly higher than the solid-stemmed cultivars. The solid-stemmed 'AC Eatonia' and 'AC Abbey' had the lowest levels of stem cutting and ranked second and third overall for yield in 2001 and 2002. McKenzie ranked first, which reflects its yield potential in combination with its partial resistance to stem cutting. Lower cutting in AC Eatonia, AC Abbey, McKenzie, and the blend of AC Abbey/ McKenzie was significantly correlated with lower grain losses. Grain lost at harvest has major economic implications if sawfly pressure is moderate to high and susceptible cultivars predominate.
The Effect of Erroneous Knowledge of Results on Skill Acquisition when Augmented Information is Redundant

Even though it can be shown that verbal knowledge of results (KR) is redundant with sensory feedback for learning certain motor skills, such findings do not eliminate the possibility that when KR is available it influences underlying learning processes. In order to examine the function of KR more closely, two experiments were designed in which the subjects received conflicting information about their own sensory feedback and the KR presented by the experimenter. In Experiment 1, two erroneous-KR groups, a correct-KR group, and a no-KR group performed 150 practice trials on a simple anticipation timing task and then performed three no-KR retention tests of 30 trials each following intervals of 10 minutes, 1 week, and 1 month. The results supported previous findings that providing correct KR is redundant in anticipation tasks. However, learning was influenced by KR as subjects performed according to the erroneous KR information, thereby ignoring their sensory feedback even after a 1-month interval. In Experiment 2, subjects practised a more complex striking response for the anticipation task for 75 trials and then performed no-KR retention trials either immediately, or 1 day or 1 week later. One of the groups received erroneous KR after 50 practice trials with correct KR. The results confirmed and extended those from Experiment 1, as erroneous KR, even after initial practice with correct KR, influenced retention performance. These results indicate that although KR provides information that is not needed to learn anticipation timing skills, this augmented verbal information is a dominant source of information that influences underlying cognitive processes involved in learning motor skills.
The Restriction of Variance Hypothesis and Interrater Reliability and Agreement: Are Ratings from Multiple Sources Really Dissimilar?

The fundamental assumption underlying the use of 360-degree assessments is that ratings from different sources provide unique and meaningful information about the target manager’s performance. Extant research appears to support this assumption by demonstrating low correlations between rating sources. This article reexamines the support of this assumption, suggesting that past research has been distorted by a statistical artifact—restriction of variance in job performance. This artifact reduces the amount of between-target variance in ratings and attenuates traditional correlation-based estimates of rating similarity. Results obtained from a Monte Carlo simulation and two field studies support this restriction of variance hypothesis. Noncorrelation-based methods of assessing interrater agreement indicated that agreement between sources was about as high as agreement within sources. Thus, different sources did not appear to be furnishing substantially unique information. The authors conclude by questioning common practices in 360-degree assessments and offering suggestions for future research and application.
Suporte familiar, auto-eficácia e lócus de controle evidências de validade entre os construtos

The aim of this study was to correlate the perception of family support with locus of control and self-efficacy in 403 students who attended a private University located in the state of Sao Paulo. The instruments used in this study were the perception of family support inventory (IPSF), Levenson’s locus of control scale (ELCL) and Sherer’s general self-efficacy scale (GSES). All dimensions of IPSF were negatively correlated to the external dimension of locus of control. When correlating the IPSF dimensions with the internal dimension of locus of control, the authors found positive correlations with the dimension called affective-consistent. In the correlations between IPSF dimensions and GSES, all dimensions were positively correlated. So, associations among the perception of family support, locus of control and self-efficacy were observed, leading to one more validity evidence based on other variables.
The Development and Validation of the Physical Self-concept Scale for Older Adults

Physical self-concept plays a central role in older adults’ physical health, mental health and psychological well-being; however, little attention has been paid to the underlying dimensions of physical self-concept in the elderly. The purpose of this study was to develop and validate a new measurement for older adults. First, a qualitative study (Study 1) was conducted that included semistructured interviews and a focus group discussion. The second study established an initial instrument. Through item pool generation, content validation assessment, factor analysis, and item analysis (n = 187), the Physical Self-Concept Scale for Older Adults (PSCS-O) was produced containing 18 items and six dimensions. Finally, in the third study (n = 233), the PSCS-O showed adequate factorial stability and the initial certerion validity. The PSCS-O were able to explain 49.2% of the variance in older adults’ well-being. In addition, Ability to Live Independently, which was introduced as a new factor by the PSCS-O, was the strongest predictor of the older adults’ overall subjective well-being. In conclusion, the preliminary results from this study demonstrated that this new instrument, the PSCS-O, has sound psychometric properties. The PSCS-O may be a suitable and useful instrument in the study of physical self-concept in older adults in the future.
The beneficial transfusion effect on kidney graft survival attributed to clonal deletion.

Editorial. Theorie selon laquelle les transfusions prealables amenent une hyperimmunisation, la transplantation provoque une reponse immune vigoureuse et l'immunodepression administree a ce moment tue ou inactive les cellules reactivees. Chez les receveurs non transfuses cette immunodepression serait prematuree, donc moins efficace
Query optimization for massively parallel data processing

MapReduce has been widely recognized as an efficient tool for large-scale data analysis. It achieves high performance by exploiting parallelism among processing nodes while providing a simple interface for upper-layer applications. Some vendors have enhanced their data warehouse systems by integrating MapReduce into the systems. However, existing MapReduce-based query processing systems, such as Hive, fall short of the query optimization and competency of conventional database systems. Given an SQL query, Hive translates the query into a set of MapReduce jobs sentence by sentence. This design assumes that the user can optimize his query before submitting it to the system. Unfortunately, manual query optimization is time consuming and difficult, even to an experienced database user or administrator. In this paper, we propose a query optimization scheme for MapReduce-based processing systems. Specifically, we embed into Hive a query optimizer which is designed to generate an efficient query plan based on our proposed cost model. Experiments carried out on our in-house cluster confirm the effectiveness of our query optimizer.
English-medium teaching in European higher education

In the global debates on English as international lingua franca or as ‘killer language’, the adoption of English as medium of instruction in Higher Education is raising increasing concern. Plurilingualism and multilingualism are embedded in the official policies of the European Union and Council of Europe, and the Bologna Process for harmonizing Higher Education promises ‘proper provision for linguistic diversity’. But even enthusiasts acknowledge the problems of implementing such policies in the face of an inexorable increase in the use of English. This survey draws on the most recent and sometimes disparate sources in an attempt to paint a comprehensive and up-to-date picture of the spread of English-medium teaching in Europe's universities. The article sets the changes in the context of accelerating globalization and marketization, and analyses the forces which are driving the adoption of English, and some of the problems which accelerating ‘Englishization’ of European Higher Education might create.
Multiple myeloma: a clinical and pathological profile.

UNLABELLED Multiple myeloma is a plasma cell neoplasm with a spectrum spanning from localized to disseminated forms, plasma cell infiltration of various organs, plasma cell leukemia and abnormal immunoglobulin chain deposition in the tissues. In the bone marrow, myeloma cells are seen, and vary from mature forms to immature pleomorphic, anaplastic cells. M component is found in the serum or urine in 99% of the patients. MATERIALS AND METHODS This study included all cases of MM diagnosed at Dayanand Medical College and Hospital, Ludhiana, India from March 2003 to August 2004. Clinical findings were recorded and relevant investigations done. RESULTS Multiple myeloma comprised 11.1% of all hematological malignancies. The mean age was 58.8 years. Bony pain was the most common presenting complaint. Other findings were anemia, raised serum creatinine levels, high serum lactate dehydrogenase and C-reactive protein levels. Plasmablastic morphology was seen in 60% patients with diffuse marrow involvement being the most common pattern. CONCLUSION The percentage incidence of Multiple Myeloma, out of all hematological malignancies reported in our study is comparable with other studies as regards to the median age of incidence, male to female ratio, clinical presentation and percentage of M band positivity. However, a higher percentage of our patients had hypercalcemia, higher Serum Lactate Dehydrogenase levels and C -Reactive protein positivity and more lytic lesions. This corresponds with a higher tumor cell burden and a more frequent diffuse pattern of bone marrow involvement in our study group. This could be due to the smaller size of our study group, or due to late referral of patients to our tertiary care hospital.
Commercially laid eggs vs. discarded hatching eggs: contamination by Salmonella spp

Salmonella enterica is frequently associated with outbreaks of human salmonellosis, and products of avian origin, such as eggs and chicken meat, are the main vehicles of its transmission. The present study describes the occurrence of different serovars of Salmonella enterica and phagotypes of S. enterica serovar Enteritidis in eggs destined for human consumption. Four thousand eggs obtained from commercial egg laying farms and one thousand discarded hatching eggs from broiler farms, which were acquired at farmers’ markets and informal shops, were analyzed. Salmonella spp. was isolated from 52.0% of the discarded hatching eggs, in which the predominant serovar was Enteritidis (84.6%), and the predominant Salmonella Enteritidis phagotype (PT) was PT7 (26.9%). Salmonella spp. was not isolated from eggs obtained from commercial egg laying farms. The antimicrobial resistance profile showed that 23.1% (n = 6) of the SE strains were resistant to nalidixic acid. The results suggest that the consumption of discarded hatching eggs represents an important source of Salmonella transmission to humans.
Maturation and Release of Interleukin-1β by Lipopolysaccharide-primed Mouse Schwann Cells Require the Stimulation of P2X7 Receptors*

The P2X7 receptor, mainly expressed by immune cells, is a ionotropic receptor activated by high concentration of extracellular ATP. It is involved in several processes relevant to immunomodulation and inflammation. Among these processes, the production of extracellular interleukin-1β (IL-1β), a pro-inflammatory cytokine, plays a major role in the activation of the cytokine network. We have investigated the role of P2X7 receptor and of an associated calcium-activated potassium conductance (BK channels) in IL-1β maturation and releasing processes by Schwann cells. Lipopolysaccharide-primed Schwann cells synthesized large amounts of pro-IL-1β but did not release detectable amounts of pro or mature IL-1β. ATP on its own had no effect on the synthesis of pro-IL-1β, but a co-treatment with lipopolysaccharide and ATP led to the maturation and the release of IL-1β by Schwann cells. Both mechanisms were blocked by oxidized ATP. IL-1β-converting enzyme (ICE), the caspase responsible for the maturation of pro-IL-1β in IL-1β, was activated by P2X7 receptor stimulation. The specific inhibition of ICE by the caspase inhibitor Ac-Tyr-Val-Ala-Asp-aldehyde blocked the maturation of IL-1β. In searching for a link between the P2X7 receptor and the activation of ICE, we found that enhancing potassium efflux from Schwann cells upregulated the production of IL-1β, while strongly reducing potassium efflux led to opposite effects. Blocking BK channels actually modulated IL-1β release. Taken together, these results show that P2X7 receptor stimulation and associated BK channels, through the activation of ICE, leads to the maturation and the release of IL-1β by immune-challenged Schwann cells.
Regime Shifts, Risk Premiums in the Term Structure, and the Business Cycle

Recent evidence indicates that using multiple forward rates sharply predicts future excess returns on U.S. Treasury Bonds, with the R2's being around 30%. The projection coefficients in these regressions exhibit a distinct pattern that relates to the maturity of the forward rate. These dimensions of the data, in conjunction with the transition dynamics of bond yields, offer a serious challenge to term structure models. In this article we show that a regime-shifting term structure model can empirically account for these challenging data features. Alternative models, such as affine specification, fail to account for these important features. We find that regimes in the model are intimately related to bond risk premia and real business cycles.
The associations among self-awareness, emotional well-being, and employment outcome following acquired brain injury: A 12-month longitudinal study.

Objective: To investigate self-awareness and emotional well-being according to change in employment outcome in people with acquired brain injury (ABI). Design: A 12-month longitudinal study. Participants and Setting: Fifty adults with ABI attending outpatient rehabilitation (n = 17) or vocational rehabilitation services (n = 33). Time since injury ranged from 6 months to 12 years (M = 4.3 years, SD = 4.1). Main Outcome Measures: Self Awareness of Deficits Interview, Self-Regulation Skills Interview, Hospital Anxiety Depression Scale, and employment outcome (stable employment, improved employment, and stable unemployment). Results: At the initial assessment, level of awareness for the improved employment group was significantly lower than that for the stable employment group (P .017). Demographic and injury-related variables were generally not related to employment outcome. Conclusions: The findings empirically support the theoretical view that an increase in self-awareness is associated with improved employment status, although the direction of this relation is unclear.
Exosomes Derived from Epstein-Barr Virus-Infected Cells Are Internalized via Caveola-Dependent Endocytosis and Promote Phenotypic Modulation in Target Cells

ABSTRACT Epstein-Barr virus (EBV), a human gammaherpesvirus, establishes a lifelong latent infection in B lymphocytes and epithelial cells following primary infection. Several lines of evidence suggest that exosomes derived from EBV-infected cells are internalized and transfer viral factors, including EBV-encoded latent membrane protein and microRNAs, to the recipient cells. However, the detailed mechanism by which exosomes are internalized and their physiological impact on the recipient cells are still poorly understood. In this study, we visualized the internalization of fluorescently labeled exosomes derived from EBV-uninfected and EBV-infected B cells of type I and type III latency into EBV-negative epithelial cells. In this way, we demonstrated that exosomes derived from all three cell types were internalized into the target cells in a similar fashion. Internalization of exosomes was significantly suppressed by treatment with an inhibitor of dynamin and also by the knockdown of caveolin-1. Labeled exosomes were colocalized with caveolae and subsequently trafficked through endocytic pathways. Moreover, we observed that exosomes derived from type III latency cells upregulated proliferation and expression of intercellular adhesion molecule 1 (ICAM-1) in the recipient cells more significantly than did those derived from EBV-negative and type I latency cells. We also identified the EBV latent membrane protein 1 (LMP1) gene as responsible for induction of ICAM-1 expression. Taken together, our data indicate that exosomes released from EBV-infected B cells are internalized via caveola-dependent endocytosis, which, in turn, contributes to phenotypic changes in the recipient cells through transferring one or more viral factors.
A Forum for Issues in Advertising Education

Abstract Advertising education is an established facet of higher education. It has developed, however, along two tracks—journalism and marketing. The result has been two different approaches to the study of advertising, neither of which may be the best approach. If the best education in advertising is to be offered, then the academic community must address itself to a resolution of these differences in the approaches to the teaching of advertising. Thus, a forum to consider the problems of advertising education is suggested.
Video Processing for Human Perceptual Visual Quality-Oriented Video Coding

We have developed a video processing method that achieves human perceptual visual quality-oriented video coding. The patterns of moving objects are modeled by considering the limited human capacity for spatial-temporal resolution and the visual sensory memory together, and an online moving pattern classifier is devised by using the Hedge algorithm. The moving pattern classifier is embedded in the existing visual saliency with the purpose of providing a human perceptual video quality saliency model. In order to apply the developed saliency model to video coding, the conventional foveation filtering method is extended. The proposed foveation filter can smooth and enhance the video signals locally, in conformance with the developed saliency model, without causing any artifacts. The performance evaluation results confirm that the proposed video processing method shows reliable improvements in the perceptual quality for various sequences and at various bandwidths, compared to existing saliency-based video coding methods.
Eye-Hand Coordination during Visuomotor Adaptation with Different Rotation Angles: Effects of Terminal Visual Feedback

This study examined adaptive changes of eye-hand coordination during a visuomotor rotation task under the use of terminal visual feedback. Young adults made reaching movements to targets on a digitizer while looking at targets on a monitor where the rotated feedback (a cursor) of hand movements appeared after each movement. Three rotation angles (30°, 75° and 150°) were examined in three groups in order to vary the task difficulty. The results showed that the 30° group gradually reduced direction errors of reaching with practice and adapted well to the visuomotor rotation. The 75° group made large direction errors of reaching, and the 150° group applied a 180° reversal shift from early practice. The 75°and 150° groups, however, overcompensated the respective rotations at the end of practice. Despite these group differences in adaptive changes of reaching, all groups gradually adapted gaze directions prior to reaching from the target area to the areas related to the final positions of reaching during the course of practice. The adaptive changes of both hand and eye movements in all groups mainly reflected adjustments of movement directions based on explicit knowledge of the applied rotation acquired through practice. Only the 30° group showed small implicit adaptation in both effectors. The results suggest that by adapting gaze directions from the target to the final position of reaching based on explicit knowledge of the visuomotor rotation, the oculomotor system supports the limb-motor system to make precise preplanned adjustments of reaching directions during learning of visuomotor rotation under terminal visual feedback.
Electrophysiological properties of rat mesenteric lymphatic vessels and their regulation by stretch.

BACKGROUND In mammals, lymph is propelled centrally primarily via the phasic contractions of collecting lymphatic vessels, known as lymphatic pumping. Electrophysiological studies conducted in guinea pig and sheep mesenteric lymphatic vessels indicate that contractions are initiated in the lymphatic muscle by nifedipine-sensitive action potentials (APs). Lymphatic pumping is highly sensitive to luminal fluid loading and the mechanical properties of this stretch-induced pumping have been consistently studied, in particular in rat mesenteric lymphatic vessels. However, membrane potential (Vm) and the electrophysiological events underlying stretch-induced lymphatic pumping have not been investigated in the rat. The aim of this study was thus to examine the properties of rat mesenteric lymphatic muscle Vm under resting conditions and to assess changes in Vm caused by distension. METHODS AND RESULTS Lymphatic muscle Vm was measured with sharp intracellular microelectrodes either in unstretched conditions or under isometric tension provided by a wire-myograph. In unstretched vessels, Vm was -48 ± 2 mV (n=30). APs (amplitude ∼25 mV) were observed at a frequency of ∼8/min and were abolished by nifedipine. Under isometric tension, Vm was less polarized (-36 ± 1 mV, n=23), even at minimum tension. Increase in tension led to increase in contraction strength and contraction/AP frequency, while Vm was slightly hyperpolarized and AP amplitude not markedly altered. CONCLUSIONS In our experimental conditions, rat lymphatic muscle has electrophysiological characteristics similar to that in other species. It responds to an increase in isometric tension with an increase in AP frequency, but resting Vm is not significantly affected.