Miracle-dz/UniFAR-FTUs huggingface dataset:
Induction of cambial reactivation by localized heating in a deciduous hardwood hybrid poplar (Populus sieboldii x P. grandidentata).

BACKGROUND AND AIMS The timing of cambial reactivation plays an important role in the control of both the quantity and the quality of wood. The effect of localized heating on cambial reactivation in the main stem of a deciduous hardwood hybrid poplar (Populus sieboldii x P. grandidentata) was investigated. METHODS Electric heating tape (20-22 degrees C) was wrapped at one side of the main stem of cloned hybrid poplar trees at breast height in winter. Small blocks were collected from both heated and non-heated control portions of the stem for sequential observations of cambial activity and for studies of the localization of storage starch around the cambium from dormancy to reactivation by light microscopy. KEY RESULTS Cell division in phloem began earlier than cambial reactivation in locally heated portions of stems. Moreover, the cambial reactivation induced by localized heating occurred earlier than natural cambial reactivation. In heated stems, well-developed secondary xylem was produced that had almost the same structure as the natural xylem. When cambial reactivation was induced by heating, the buds of trees had not yet burst, indicating that there was no close temporal relationship between bud burst and cambial reactivation. In heated stems, the amount of storage starch decreased near the cambium upon reactivation of the cambium. After cambial reactivation, storage starch disappeared completely. Storage starch appeared again, near the cambium, during xylem differentiation in heated stems. CONCLUSIONS The results suggest that, in deciduous diffuse-porous hardwood poplar growing in a temperate zone, the temperature in the stem is a limiting factor for reactivation of phloem and cambium. An increase in temperature might induce the conversion of storage starch to sucrose for the activation of cambial cell division and secondary xylem. Localized heating in poplar stems provides a useful experimental system for studies of cambial biology.
A 1.4 deg 2 blind survey for C II], C III] and C IV at z ∼ 0.7-1.5 - I. Nature, morphologies and equivalent widths

While traditionally associated with active galactic nuclei (AGN), the properties of the CII], CIII] and CIV emission lines are still uncertain as large, unbiased samples of sources are scarce. We present the first blind, statistical study of CII], CIII] and CIV emitters at $z\sim0.68,1.05,1.53$, respectively, uniformly selected down to a flux limit of $\sim4\times10^{-17}$ erg s$^{-1}$ cm$^{-1}$ through a narrow band survey covering an area of $\sim1.4$ deg$^2$ over COSMOS and UDS. We detect 16 CII], 35 CIII] and 17 CIV emitters, whose nature we investigate using optical colours as well as HST, X-ray, radio and far infra-red data. We find that $z\sim0.7$ CII] emitters are consistent with a mixture of blue (UV slope $\beta=-2.0\pm0.4$) star forming galaxies with disky HST structure and AGN with Seyfert-like morphologies. Bright CII] emitters have individual X-ray detections as well as high average black hole accretion rates (BHAR) of $\sim0.1$ $M_{\odot}$ yr$^{-1}$. CIII] emitters at $z\sim1.05$ trace a general population of SF galaxies, with $\beta=-0.8\pm1.1$, a variety of optical morphologies, including isolated and interacting galaxies and low BHAR ($
Precuneal Thickness and Depression in Parkinson Disease

Background: Depression-related gray matter changes in Parkinson disease (PD) patients have been reported, although studies investigating cortical thickness in early-stage disease are lacking. Objective: We aimed to evaluate cortical changes related to depression in early-stage PD patients with an extensive neuropsychological evaluation. Methods: 17 PD patients and 22 healthy controls underwent a 1.5-T brain MR protocol, and voxel-wise differences in cortical thickness among patients with (n = 6) and without (n = 11) depression and controls were evaluated using FreeSurfer software. Results: Cortical thickness was increased in the precuneus bilaterally in PD patients with depression compared to the other groups (number of vertices >100; p < 0.001, uncorrected) with a direct correlation with the Beck Depression Inventory score (p < 0.001, uncorrected). Conclusion: Precuneal cortical thickening is evident in PD patients with mild-moderate depression even in the early stages of the disease. This finding may reflect the early involvement of this region in the development of PD-related depression.
Physical dating violence: towards a comprehensible view of the phenomenon / Violencia física en las relaciones sentimentales adolescentes: hacia la comprensión del fenómeno

Abstract Much research on adolescent dating violence has been constrained by the tradition of studies on gender-based violence. In contrast, other studies have indicated that the violence that occurs in these early dating relationships could be the result of adolescent inexperience in the dating process, which may result in erotic-aggressive dynamics. On the basis of this, the present study stresses the need for research focusing on dating violence that is sensitive to the particularities of such violent dynamics. Drawing on an initial sample of 3,256 adolescents, we identified 2,687 participants aged 15 to 21 years who had had at least one romantic relationship. The aim was to analyse involvement in physical dating violence and the forms it takes based on variables such as the frequency and severity of aggression and the roles taken by those involved. The results indicate that violence was mostly occasional and that both boys and girls were identified as victims and aggressors. The percentages of involvement of boys and girls differed depending on the severity of the behaviour (mild vs. severe). These results are discussed in terms of the importance of defining the characteristics of this phenomenon to advance understanding of this violent dynamic and its relationship to other forms of violence in romantic relationships.
Role strain, engagement and academic achievement in early adolescence

The present study was designed to investigate the relationships between role strains following the transition to secondary school and academic achievement. Academic engagement was hypothesized to mediate between role strain and achievement. The sample consisted of 749 students in their first year of secondary school. Four types of role strain were investigated: parent, teacher, school and peer. Parent and teacher role strains appeared to be negatively associated with academic achievement, as mediated through academic engagement. Parent and school role strain were directly and negatively associated with achievement. Results are discussed in the light of parenting practices and the developmental mismatch hypothesis.
Private equity and human resource management: ‘Barbarians at the gate!’ HR’s wake-up call?

A private equity buyout (PEB) constitutes an important organizational event that usually heralds major organizational transformations. As such, the announcement of a possible PEB can be expected to impact the organization and require careful management of the pre-PEB process. This article investigates the role and contribution of human resource management (HRM) during a two-year process of negotiations preceding a PEB. It shows the vulnerability of HR-based change contributions to uncertainty about the future, as uncertainty accentuates the ambiguity inherent in HRM based change. Furthermore, it highlights the importance of the role of top-management and the possibilities for HRM during the period leading up to a PEB.
Using Their Words: Six Elements of Social Justice Curriculum Design for the Elementary Classroom

This article provides a framework of six elements of social justice curriculum design for elementary classrooms. The elements move from students learning self-love and knowledge about who they are and where they come from to learning respect for people different from themselves. Students explore social injustice, learn about social movements, raise awareness, and engage in activism. By addressing all six elements, students develop an analysis of oppression and tools to take action. The elements help teachers visualize social justice education by providing examples of projects, making social justice in K-6 settings accessible, practical, and achievable.
Using Undergraduate Teaching Assistants in a Research Methodology Course

In this article, I describe an undergraduate teaching assistant (TA.) program in which TAs engage in the complementary activities of course preparation, course instruction, and l-on-l tutorial assistance. Questionnaires completed by students enrolled in the beginning methodology course and from undergraduates serving as> TAs indicated that both groups viewed the program as a learning experience. Seventy-three percent of the TAs rated their work as an excellent learning experience. Over 91% of the students who worked with the teaching assistants rated the help they received as good to excellent.
Revisiting English Language Teaching (ELT) Curriculum Design: How Appropriate is Bangladesh Higher Secondary Level National ELT Curriculum as a Learner-Centred One?

ELT curriculum design has seen several transformations overtime, especially with the changing views on the educational ideologies and philosophies in the western world. As far as teaching English in an English as a Second/Foreign language (ESL/EFL) context is concerned, it is often suggested that the ESL or the EFL education should be acculturalized as to be responsive to a particular group of people, and that again refers to the need for a national curriculum for ELT in an EFL country. Thus, in designing an ELT curriculum in an ESOL context, the designers need to examine not only whether the curriculum is responsive to the needs of a group of learners but also if it is ‘culturally appropriate’ in that context or not. Following a qualitative case study research method, this paper examines the extent to which the Higher Secondary ELT national curriculum in Bangladesh is responsive to the socio-cultural needs and the needs of the learners. DOI: http://dx.doi. org/10.3329/iiucs.v7i0. 12494 IIUC Studies Vol.7 2011: 283-296
Myelosuppressive Conditioning Using Busulfan Enables Bone Marrow Cell Accumulation in the Spinal Cord of a Mouse Model of Amyotrophic Lateral Sclerosis

Myeloablative preconditioning using irradiation is the most commonly used technique to generate rodents having chimeric bone marrow, employed for the study of bone marrow-derived cell accumulation in the healthy and diseased central nervous system. However, irradiation has been shown to alter the blood-brain barrier, potentially creating confounding artefacts. To better study the potential of bone marrow-derived cells to function as treatment vehicles for neurodegenerative diseases alternative preconditioning regimens must be developed. We treated transgenic mice that over-express human mutant superoxide dismutase 1, a model of amyotrophic lateral sclerosis, with busulfan to determine whether this commonly used chemotherapeutic leads to stable chimerism and promotes the entry of bone marrow-derived cells into spinal cord. Intraperitoneal treatment with busulfan at 60 mg/kg or 80 mg/kg followed by intravenous injection of green fluorescent protein-expressing bone marrow resulted in sustained levels of chimerism (∼80%). Bone marrow-derived cells accumulated in the lumbar spinal cord of diseased mice at advanced stages of pathology at both doses, with limited numbers of bone marrow derived cells observed in the spinal cords of similarly treated, age-matched controls; the majority of bone marrow-derived cells in spinal cord immunolabelled for macrophage antigens. Comparatively, significantly greater numbers of bone marrow-derived cells were observed in lumbar spinal cord following irradiative myeloablation. These results demonstrate bone marrow-derived cell accumulation in diseased spinal cord is possible without irradiative preconditioning.
Fast and accurate recurrent neural network acoustic models for speech recognition

We have recently shown that deep Long Short-Term Memory (LSTM) recurrent neural networks (RNNs) outperform feed forward deep neural networks (DNNs) as acoustic models for speech recognition. More recently, we have shown that the performance of sequence trained context dependent (CD) hidden Markov model (HMM) acoustic models using such LSTM RNNs can be equaled by sequence trained phone models initialized with connectionist temporal classification (CTC). In this paper, we present techniques that further improve performance of LSTM RNN acoustic models for large vocabulary speech recognition. We show that frame stacking and reduced frame rate lead to more accurate models and faster decoding. CD phone modeling leads to further improvements. We also present initial results for LSTM RNN models outputting words directly.
The relation between hypoxia-inducible factor (HIF)-1alpha and HIF-2alpha expression with anemia and outcome in surgically treated head and neck cancer.

BACKGROUND Hypoxia promotes tumorigenesis through the hypoxia-inducible factor (HIF) pathway. There are 2 main homologues of the regulatory proteins, HIF-1alpha and HIF-2alpha, which have different effects in genetic knock-out experiments. Anemia may contribute to hypoxia by reducing oxygen delivery, but it is not known whether this influences HIF-alpha expression in tumors. METHODS The expression of HIF-1alpha, HIF-2alpha, carbonic anhydrase-9 (CA-9), and peripheral hemoglobin (Hb) levels in 151 patients who underwent surgery for head and neck squamous cell carcinoma (HNSCC) were analyzed and related to outcome. RESULTS High HIF-1alpha was expressed in 45 of 140 tumors (30%), HIF-2alpha was expressed in 21 of 139 tumors (14%), and CA-9 was expressed in 56 of 149 tumors (62%). There was a positive correlation between HIF-1alpha expression and HIF-2alpha expression (P =.0001). HIF-1alpha alone was associated with a worse disease-specific survival (DSS) (P =.05) and disease-free survival (DFS) (P = .03) in multivariate analyses. Nine percent of tumors expressed both high HIF-1alpha and high HIF-2alpha. High HIF-1alpha/high HIF-2alpha expression was an independent prognostic factors in DSS (P = .04) and DFS (P =.005) in multivariate analyses. There was no correlation noted between Hb and HIF-1alpha, HIF-2alpha, or CA-9. CONCLUSIONS HIF-1alpha alone was correlated with DSS and DFS. The additive effect of HIF-2alpha on poor prognosis suggested that different pathways may be regulated by HIF-2alph. Anemia that was not related to HIF-alpha expression suggests that tumor intrinsic factors regulate HIF-alpha therefore, anemia may be a surrogate marker for other factors that affect outcome.
“Do you have another Johan?” Negotiating meaning in the operating theatre

This paper discusses language use at a workplace in a context of instability and diversity. Its focus is on the operating theatre, where communication is an integral part of complex, collaborative tasks, impacting on patient-safety, staff well-being and overall quality of health care. In the operating theatre health care professionals gather to work on the recurring task of surgical operations, in teams that exist only for the duration or parts of the task. Not only do the members of these unstable teams have different professional backgrounds, such as surgery and nursing, they also draw on different, social, cultural and linguistic resources. The paper shows how this instability and diversity which is so characteristic of contemporary society plays out in the moment-by-moment use of language at the operating table. On the basis of prolonged fieldwork in a London hospital and a unique set of audio- and video-recordings we show how surgeons formulate requests and how nurses and surgical trainees disambiguate these requests on the basis of their prior experiences with surgical instruments and equipment, the surgical procedure, and, crucially, the surgeon‘s ‗idiolect‘. We analyze instances where this process of disambiguation is highly successful, as well as examples where it is not. We tease out the strategies that nurses and surgeons deploy to deal with this ambiguity and explore ways to deal with instability and diversity in professional communication.
Do Big Four Auditors Always Provide Higher Audit Quality? Evidence from Pakistan

The purpose of this paper is to examine the role of external auditors in potentially approving or limiting a firm’s earnings management practices in institutional settings which do not provide incentives for auditors to deliver high audit quality. We use signed discretionary and performance-adjusted discretionary accruals as proxies for earnings management, and audit firm size (Big 4 vs. Non-Big 4) and audit opinion type (Qualified vs. Unqualified) as measures for audit quality. Using a sample of 183 firms listed on the Karachi Stock Exchange, Pakistan for the five-year period from 2009 to 2013, we find that there is statistically no significant difference between earnings management activities of firms audited by Big 4 and non-Big 4 auditors. Audit opinion is not being issued in response to the earnings management activities being employed by firms. Further consistent with the entrenchment hypothesis, we find that earnings management is pervasive in family controlled firms and Big 4 auditors do not moderate the relation between family firm dominance and earnings management. A small audit market coupled with non-existent litigation risk, strong economic bonding of auditors with their clients, lower investor protection, poor enforcement mechanisms and dominance of firms by influential family groups lead auditors to behave opportunistically, which undermines their independence and objectivity.
Multifunctional Hdo/selective Cracking Ni/hbea Catalysts to Produce Jet Fuel and Diesel from Bio-oils

The development of multifunctional catalysts to selectively produce in one-step processes jet fuels (around C12) and diesel (around C16-C18) from bio-oils (vegetable and especially algal oil) is still a challenge to produce next-generation biofuels. This topic is addressed here by investigating the activity of Ni based catalysts in the methyl palmitate conversion, as model test reaction. The performance of Ni/HBEA (8%wt Ni) catalysts, where mesoporosity was introduced by desilication, were compared with those of mesoporous SBA15. It is evidenced that desilication allows to introduce selective hydrocracking functionality together with HDO (hydrodeoxygenation), the latter prevailing occurring through hydrogenation of the acid group rather than via hydrodecarboxylation.
Distinct Signaling Pathways Mediate Touch and Osmosensory Responses in a Polymodal Sensory Neuron

The Caenorhabditis elegans ASH sensory neurons mediate responses to nose touch, hyperosmolarity, and volatile repellent chemicals. We show here that distinct signaling pathways mediate the responses to touch and hyperosmolarity. ASH neurons distinguish between these stimuli because habituation to nose touch has no effect on the response to high osmolarity or volatile chemicals (1-octanol). Mutations in osm-10 eliminate the response to hyperosmolarity but have no effect on responses to nose touch or to volatile repellents. OSM-10 is a novel cytosolic protein expressed in ASH and three other classes of sensory neurons. Mutations in two other osmosensory-defective genes, eos-1 andeos-2, interact genetically with osm-10. Our analysis suggests that nose touch sensitivity and osmosensation occur via distinct signaling pathways in ASH and that OSM-10 is required for osmosensory signaling.
Green IS Design and Energy Conservation: An Empirical Investigation of Social Normative Feedback

A combination of information systems and socio-psychological concepts holds the potential to exert a positive influence on the energy consumption of individuals. In a field study among 9,929 users, we investigate whether descriptive and injunctive normative feedback lead to significant effects on energy demand if delivered by a website have the same effects as when delivered via personal interaction as in Schultz et al.’s (2007) study, and whether both feedback types have different effects on repeated voluntary system usage. We found a similar pattern with respect to energy consumption as did Schultz et al. (2007) based on personal interaction, and no difference with respect to frequency of system usage. The findings are important for the design of information systems that utilize feedback concepts to induce a sustainable energy usage among households. Ultimately, the results support utility companies and policy makers to cost-effectively meet regulatory saving targets.
The effect of freezing at the temperature of -18°C on chemical compositions of the body of Lutjanus johnii.

In order to investigate the effect of freezing at the temperature of -18C on chemical compositions (crude protein, crude fat, ash and moisture) of the body of Lutjanus johnii during 180 days of the preservation in freezer, sampling the mentioned fish was done from fish seller market of Bushehr Province in January 2014. After removing scales, cutting fins and evacuation of viscera, 3 fishes were randomly separated in order to do zero day experiments (fresh sample). The rest of the fish was separately placed in plastic freezer bags and they were placed in freezer at the temperature of -18C. At the next samplings (the 30, 60, 90, 120, 150, and 180 days) the number of replication for each treatment was 3 and the meat sample from different parts of homogeneous fish were used. The results showed that the levels of crude protein, crude fat, ash and moisture (%) in fresh sample were 15.87±0.15, 4.50±0.14, 2.37±0.21, 77.72±0.24 respectively that reached 15.57±0.33, 4.02±0.05, 3.00±0.15, 77.20±0.22 respectively after 180 days of the preservation in freezer. The statistical analysis results showed that the preservation duration in freezer at the temperature of -18C had significant effect on the levels of crude fat and ash (p 0.05). Investigation of chemical changes of the fish body at the end of the research showed that the nutritional value of the fish did not fall into tangible decline though some of these rates increased and decreased. Thus the preservation of the product at this temperature during 180 days keeps the quality desirably and acceptably for the consumer.
Endothelial Nitric Oxide Synthase Gene Polymorphism and Periodontal Disease

The endothelial isoform of nitric oxide synthase (eNOS) is responsible for the physiological production of NO in endothelial cells and platelets. There is evidence that the G894T polymorphism of the eNOS gene is associated with this enzyme's basal activity and NO production, which could contribute to the pathogenesis of periodontal diseases (PD). Therefore, this study was designed to investigate the role of G894T polymorphism in the eNOS gene as a predisposing factor to periodontal disease. In this study we investigated the association of this polymorphism with PD in an admixture population (N = 119) separated into three groups: Healthy control, Moderate and Severe PD, without statistical differences among them for risk factors for PD, such as age, gender and smoking status. We observed that the GG genotype was associated with the progression of PD as indicated by an increase in frequency of approximately 18% in the Moderate and 26% in the Severe groups compared to the Healthy control group (p = 0.0302). This finding indicates that patients carrying the GG genotype have a greater chance of developing PD compared with those carrying the T allele, and it reinforces the notion that genetic factors contribute to the development and aggravation of PD.