Evidence for non-stellar rest-frame near-IR emission associated with increased star formation in galaxies at z∼1z \sim 1

We explore the presence of non-stellar rest-frame near-IR ($2-5 \ \mu \mathrm{m}$) emission in galaxies at $z \sim 1$. Previous studies identified this excess in relatively small samples and suggested that such non-stellar emission, which could be linked to the $3.3 \ \mu \mathrm{m}$ polycyclic aromatic hydrocarbons feature or hot dust emission, is associated with an increased star formation rate (SFR). In this Letter, we confirm and quantify the presence of an IR excess in a significant fraction of galaxies in the 3D-HST GOODS catalogs. By constructing a matched sample of galaxies with and without strong non-stellar near-IR emission, we find that galaxies with such emission are predominantly star-forming galaxies. Moreover, star-forming galaxies with an excess show increased mid- and far-IR and H$\alpha$ emission compared to other star-forming galaxies without. While galaxies with a near-IR excess show a larger fraction of individually detected X-ray active galactic nuclei (AGNs), an X-ray stacking analysis, together with the IR-colors and H$\alpha$ profiles, shows that AGNs are unlikely to be the dominant source of the excess in the majority of galaxies. Our results suggest that non-stellar near-IR emission is linked to increased SFRs and is ubiquitous among star-forming galaxies. As such, the near-IR emission might be a powerful tool to measure SFRs in the era of the James Webb Space Telescope.Comment: 6 pages, 5 figures, accepted for publication in ApJ

Automated Jerboa Startling Device

ME450 Capstone Design and Manufacturing Experience: Winter 2021A hallway module that startles a jerboa with an air puff as well as a noise tone. It will then record the jerboa throughout the length of the hallway as well as take data from a force platform on the Jerboa.Talia Moore: Moore Biomechanicshttp://deepblue.lib.umich.edu/bitstream/2027.42/167640/1/Team_23-Automated_Jerboa_Startling_Device.pd

The Effects Of Crime On The Retail Business Sector In The Matjhabeng Municipality, Free State

Dissertatio

School Management Teams’ Impact On Educators’ Job Satisfaction In The Free State Province

ThesisA school's learning environment depends on educators because they are directly involved in knowledge transfer. The School Management Team (SMT) has a duty to create a school atmosphere and a conducive learning environment to positively affect educators' job satisfaction. Educators will generally be satisfied in their work environment if a positive relationship with their SMT exists, and when they are included in decision-making processes. The researcher used the explanatory sequential mixed method approach. Phase one included quantitative data collection through questionnaires. Qualitative data collection, using focus group interviews, followed after the quantitative method of phase one. The study was confined to schools in the Free State Province. The questionnaire sample included 60 secondary schools and 313 respondents, while the qualitative sample for focus group interviews consisted of 34 educators and 34 SMT Members (20 HOD’s, 6 Deputy Principals and 8 School Principals). This research study addresses a gap in research regarding the impact of SMTs on educators' job satisfaction in the Free State province. The pragmatic results indicated that participants experienced substantial job dissatisfaction that discouraged them and prohibited quality education in schools under certain circumstances. The research revealed numerous decisive dynamics that SMTs could use to develop strategies to promote educators’ satisfaction. It is therefore essential that SMTs identify support tactics in order to improve educators' job satisfaction. The results of the research could be used by the Free State Department of Basic Education to organize an educator management training programme plan for SMTs. The researcher developed a toolkit for in-service SMT training, and is intended primarily for facilitators (such as principals) to enable them to conduct workshops for fellow SMT members. The toolkit offers an overview of some of the main issues related to management and leadership, and how such issues influence educator job satisfaction

Taking Stock of Reality: Biased Perceptions of the Costs of Romantic Partners’ Sacrifices

When romantic partners sacrifice their own self-interest to benefit the relationship, the sacrificer or recipient may—for various reasons—be biased in how they perceive the costs that the sacrificer incurs. In Study 1, romantic couples (N = 125) rated their own and their partner’s costs after a conversation about a sacrifice in the laboratory, followed by extensive experience sampling in their natural environment. In Study 2, a preregistered experiment, individuals (N = 775) imagined a scenario in which they, their partner, or an unknown person sacrificed and rated the associated costs and benefits. Both studies demonstrated a consistent discrepancy between perceptions of own and partner sacrifice, driven primarily by people underestimating their own sacrifice costs and overestimating the benefits (Study 2). Results across studies showed that this underestimation bias helps people to feel better and feel more satisfied in the relationship when giving up their own goals and preferences for the relationship

The Ursinus Weekly, November 11, 1977

Task force in gear • The Medical Credentials Committee • Financial aid simplified • 16 selected for Who\u27s who • After graduation • Ursinus news in brief: Ruby sellout; New Library service • Comment: Take a risk • Letters to the editor • Movie attack: Exorcist two; You light up my life; The Island of Dr. Moreau • Comment on the arts • Art and loneliness III • On killing blank space • Andy Campbell • Women\u27s volleyball • Hockey wins • Bears edge Widener • 3 & 4 score morehttps://digitalcommons.ursinus.edu/weekly/1076/thumbnail.jp

Alu and LINE-1 methylation and lung function in the normative ageing study

Objectives: To investigate the association between methylation of transposable elements Alu and long-interspersed nuclear elements (LINE-1) and lung function. Design: Cohort study. Setting: Outpatient Veterans Administration facilities in greater Boston, Massachusetts, USA. Participants: Individuals from the Veterans Administration Normative Aging Study, a longitudinal study of aging in men, evaluated between 1999 and 2007. The majority (97%) were white. Primary and secondary outcome measures: Primary predictor was methylation, assessed using PCR-pyrosequencing after bisulphite treatment. Primary outcome was lung function as assessed by spirometry, performed according to American Thoracic Society/European Respiratory Society guidelines at the same visit as the blood draws. Results: In multivariable models adjusted for age, height, body mass index (BMI), pack-years of smoking, current smoking and race, Alu hypomethylation was associated with lower forced expiratory volume in 1 s (FEV1) (β=28 ml per 1% change in Alu methylation, p=0.017) and showed a trend towards association with a lower forced vital capacity (FVC) (β=27 ml, p=0.06) and lower FEV1/FVC (β=0.3%, p=0.058). In multivariable models adjusted for age, height, BMI, pack-years of smoking, current smoking, per cent lymphocytes, race and baseline lung function, LINE-1 hypomethylation was associated with more rapid decline of FEV1 (β=6.9 ml/year per 1% change in LINE-1 methylation, p=0.005) and of FVC (β=9.6 ml/year, p=0.002). Conclusions: In multiple regression analysis, Alu hypomethylation was associated with lower lung function, and LINE-1 hypomethylation was associated with more rapid lung function decline in a cohort of older and primarily white men from North America. Future studies should aim to replicate these findings and determine if Alu or LINE-1 hypomethylation may be due to specific and modifiable environmental exposures

The Ursinus Weekly, April 28, 1977

Ursinus news in brief: Mattress team takes second; Chemistry delegates tapped; Cub & Key chooses officers; Classes elect officers; Economics Club elects officers; Library announces new hours; Pre-legal Society elections held • SFARC discusses Weekly • Meal popularity surveyed • GRE revised • Food service names liaison • Comment: After orientation, what then? • Curriculum review urged • Letters to the editor • Musical gobs • Perfection personified • Movie attack: Airport 77 • Band holds concert • Presidential memo • Weekly special: Fidel interested in assassination probe • Songfest \u2777 • Faculty promotions announced • More on food • Sum. Eve. School • Baseball team excites fans • Lacrosse undefeated • Tennis times • Women\u27s tennis • Amateur boxing • Track • Golf • Correction • Mexico triphttps://digitalcommons.ursinus.edu/weekly/1070/thumbnail.jp

Metabolomics as a Hypothesis-Generating Functional Genomics Tool for the Annotation of Arabidopsis thaliana Genes of “Unknown Function”

Metabolomics is the methodology that identifies and measures global pools of small molecules (of less than about 1,000 Da) of a biological sample, which are collectively called the metabolome. Metabolomics can therefore reveal the metabolic outcome of a genetic or environmental perturbation of a metabolic regulatory network, and thus provide insights into the structure and regulation of that network. Because of the chemical complexity of the metabolome and limitations associated with individual analytical platforms for determining the metabolome, it is currently difficult to capture the complete metabolome of an organism or tissue, which is in contrast to genomics and transcriptomics. This paper describes the analysis of Arabidopsis metabolomics data sets acquired by a consortium that includes five analytical laboratories, bioinformaticists, and biostatisticians, which aims to develop and validate metabolomics as a hypothesis-generating functional genomics tool. The consortium is determining the metabolomes of Arabidopsis T-DNA mutant stocks, grown in standardized controlled environment optimized to minimize environmental impacts on the metabolomes. Metabolomics data were generated with seven analytical platforms, and the combined data is being provided to the research community to formulate initial hypotheses about genes of unknown function (GUFs). A public database (www.PlantMetabolomics.org) has been developed to provide the scientific community with access to the data along with tools to allow for its interactive analysis. Exemplary datasets are discussed to validate the approach, which illustrate how initial hypotheses can be generated from the consortium-produced metabolomics data, integrated with prior knowledge to provide a testable hypothesis concerning the functionality of GUFs

Low-level laser therapy/photobiomodulation in the management of side effects of chemoradiation therapy in head and neck cancer: part 2: proposed applications and treatment protocols

Purpose: There is a large body of evidence supporting the efficacy of low-level laser therapy (LLLT), more recently termed photobiomodulation (PBM) for the management of oral mucositis (OM) in patients undergoing radiotherapy for head and neck cancer (HNC). Recent advances in PBM technology, together with a better understanding of mechanisms involved and dosimetric parameters may lead to the management of a broader range of complications associated with HNC treatment. This could enhance patient adherence to cancer therapy, and improve quality of life and treatment outcomes. The mechanisms of action, dosimetric, and safety considerations for PBM have been reviewed in part 1. Part 2 discusses the head and neck treatment side effects for which PBM may prove to be effective. In addition, PBM parameters for each of these complications are suggested and future research directions are discussed. Methods: Narrative review and presentation of PBM parameters are based on current evidence and expert opinion. Results: PBM may have potential applications in the management of a broad range of side effects of (chemo)radiation therapy (CRT) in patients being treated for HNC. For OM management, optimal PBM parameters identified were as follows: wavelength, typically between 633 and 685 nm or 780–830 nm; energy density, laser or light-emitting diode (LED) output between 10 and 150 mW; dose, 2–3 J (J/cm2), and no more than 6 J/cm2 on the tissue surface treated; treatment schedule, two to three times a week up to daily; emission type, pulsed (<100 Hz); and route of delivery, intraorally and/or transcutaneously. To facilitate further studies, we propose potentially effective PBM parameters for prophylactic and therapeutic use in supportive care for dermatitis, dysphagia, dry mouth, dysgeusia, trismus, necrosis, lymphedema, and voice/speech alterations. Conclusion: PBM may have a role in supportive care for a broad range of complications associated with the treatment of HNC with CRT. The suggested PBM irradiation and dosimetric parameters, which are potentially effective for these complications, are intended to provide guidance for well-designed future studies. It is imperative that such studies include elucidating the effects of PBM on oncology treatment outcomes.National Institutes of Health (U.S.) (NIH grant R01AI050875