Riggssnider6223

High-energy radiation detectors such as X-ray detectors with low light photoresponse characteristics are used for several applications including, space, medical, and military devices. Here, an indirect bandgap inorganic perovskite-based X-ray detector is reported. The indirect bandgap nature of perovskite materials is revealed through optical characterizations, time-resolved photoluminescence (TRPL), and theoretical simulations, demonstrating that the differences in temperature-dependent carrier lifetime related to CsPbX3 (X = Br, I) perovskite composition are due to the changes in the bandgap structure. TRPL, theoretical analyses, and X-ray radiation measurements reveal that the high response of the UV/visible-blind yellow-phase CsPbI3 under high-energy X-ray exposure is attributed to the nature of the indirect bandgap structure of CsPbX3 . The yellow-phase CsPbI3 -based X-ray detector achieves a relatively high sensitivity of 83.6 μCGyair-1 cm-2 (under 1.7 mGyair s-1 at an electron field of 0.17 V μm-1 used for medical diagnostics) although the active layer is based solely on an ultrathin (≈6.6 μm) CsPbI3 nanocrystal film, exceeding the values obtained for commercial X-ray detectors, and further confirming good material quality. selleck chemicals llc This CsPbX3 X-ray detector is sufficient for cost-effective device miniaturization based on a simple design.Transition metal dichalcogenide (TMD) nanomaterials, specially MoS2 , are proven to be appealing nanoagents for photothermal cancer therapies. However, the impact of the crystal phase of TMDs on their performance in photoacoustic imaging (PAI) and photothermal therapy (PTT) remains unclear. Herein, the preparation of ultrasmall single-layer MoS2 nanodots with different phases (1T and 2H phase) is reported to explore their phase-dependent performances as nanoagents for PAI guided PTT in the second near-infrared (NIR-II) window. Significantly, the 1T-MoS2 nanodots give a much higher extinction coefficient (25.6 L g-1 cm-1 ) at 1064 nm and subsequent photothermal power conversion efficiency (PCE 43.3%) than that of the 2H-MoS2 nanodots (extinction coefficient 5.3 L g-1 cm-1 , PCE 21.3%). Moreover, the 1T-MoS2 nanodots also give strong PAI signals as compared to negligible signals of 2H-MoS2 nanodots in the NIR-II window. After modification with polyvinylpyrrolidone, the 1T-MoS2 nanodots can be used as a highly efficient agent for PAI guided PTT to effectively ablate cancer cells in vitro and tumors in vivo under 1064 nm laser irradiation. This work proves that the crystal phase plays a key role in determining the performance of nanoagents based on TMD nanomaterials for PAI guided PTT.Prenatal breastfeeding intentions impact breastfeeding practices. Racial/ethnic disparities exist in breastfeeding rates; it is unknown if prenatal intentions and meeting intentions differ by race/ethnicity. A longitudinal cohort of USDA's Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) which enrolled participants beginning in 2013 were used to estimate prenatal intentions for breastfeeding initiation, exclusive breast milk feeds at 1 and 3 months by race/ethnicity (n = 2070). Meeting intentions were determined by reported breast milk consumption at birth, 1 month and 3 months. Multivariable logistic regression was used to determine the association of race/ethnicity with meeting intentions. There were no differences in prenatal breastfeeding intentions between non-Hispanic White and non-Hispanic Black women (initiation 86.9% and 87.2%; Month 1 52.3% and 48.3%; Month 3 43.8% and 40.9%; respectively), but a higher percentage of Hispanic women intended to breastfeed at all time points (95.5%, 68.3% and 56.4%; respectively, P less then 0.05). Among women who intended to breastfeed at Month 1, non-Hispanic Black and Hispanic women had significantly lower odds of meeting intentions compared with non-Hispanic White women after adjusting for covariates (aORs 0.63 [95% CI 0.41, 0.98]; 0.64 [95% CI 0.44, 0.92], respectively). Similar findings were seen for Month 3. Despite no differences in breastfeeding intentions, non-Hispanic Black women were less likely to meet their breastfeeding intentions than non-Hispanic White women. link2 Hispanic women were more likely to intend to breastfeed yet were less likely to meet their intentions. This suggests that non-Hispanic Black and Hispanic women face challenges to meeting their longer breastfeeding intentions. Understanding how racism, bias and discrimination contribute to women not meeting their breastfeeding intentions may help efforts to reduce breastfeeding disparities.

To determine the factors associated with the degree of distress experienced by patients with cancer before disclosing their cancer diagnosis to a friend and their perceptions of social support upon disclosure.

Adult patients with cancer participated in a cross-sectional Internet-based survey on their behaviour when disclosing their diagnosis to a selected friend, degree of distress before this disclosure and perceived social support upon disclosure.

Of 473 eligible respondents, around half were middle-aged (40-59years) and around half were men. Having a younger age (20-39years), being a woman and delaying disclosure were factors associated with greater pre-disclosure distress. Most participants perceived receiving emotional support upon disclosure. Telling a close friend or a female friend and early disclosure timing were associated with perceived social support, although this varied by social support type.

Younger patients and women may need more support in deciding to disclose their cancer diagnosis to friends. Selection of to whom to disclose this information and disclosure timing should be considered to achieve more desirable outcomes. In addition to selective disclosure-including planning and scheduling-communication skills may be required for effectively disclosing a cancer diagnosis and achieving favourable results following this disclosure.

Younger patients and women may need more support in deciding to disclose their cancer diagnosis to friends. Selection of to whom to disclose this information and disclosure timing should be considered to achieve more desirable outcomes. In addition to selective disclosure-including planning and scheduling-communication skills may be required for effectively disclosing a cancer diagnosis and achieving favourable results following this disclosure.

The nutrition service available for athletes competing at major events varies significantly and is dependent on advocacy for dietetic inclusion. The aim of this study was to describe the outcomes of a nutrition service designed and led by dietitians at a major international competition the 2017 Taipei Universiade.

Athletes (university students aged 17-25 years) and officials that used the service were invited to participate. Occasions of service were recorded using standard pro formas and dietary analysis of consultations was conducted using Foodworks.

The scope of the service included 242 enquiries, 884 weight checks, 25 skinfold measures and 37 consultations. A significantly higher proportion of females asked about food allergy/intolerance (26.2% vs 12.5%, P = .039) than males. Most athletes who sought a nutrition consultation had not received previous nutrition support (86.5%) and wanted performance-related meal plans and advice (81.1%). On average, their diets were adequate in micronutrients with the exception of calcium, and low in serves of vegetables and dairy products. The majority of athletes (72.9%) seeking a consultation reported that they did not follow a specific diet for their sport. Sports supplements, performance enhancers and vitamin-mineral supplements use was 45.9% (n = 17), 13.5% (n = 5) and 13.5% (n = 5), respectively. Most athletes were of a high international calibre, however, reported low confidence in their nutrition knowledge and did not consistently apply knowledge to practice.

This demonstrates a need for nutrition services by dietitians at this and similar events to improve the dietary intake of young adult athletes.

This demonstrates a need for nutrition services by dietitians at this and similar events to improve the dietary intake of young adult athletes.Academic-practice collaborations between academic educators and preceptors are important to ensure the success of clinical education. This study explored the perceptions of academic educators and preceptors on their collaborations in a transition-to-practice program for nursing students. A qualitative exploratory study was undertaken with a purposive sample of 12 preceptors and 13 academic educators across three hospitals and one university in Singapore. Individual interviews were conducted. Four main themes emerged from the thematic data analysis "hierarchical communication" that prevents academic educators and preceptors from communicating directly with each other, "uncertainty about learning objectives" among preceptors, "discrepancies in clinical assessments" due to a lack of support for preceptors in the assessment process, and "not knowing each other's practice," which could result in theory-practice gaps. The findings reflect the need to strengthen collaborations between academic educators and preceptors through joint teaching and assessments in clinical or simulated settings. This will provide opportunities to learn from each other's practice as well as build rapport, which are critical elements in reducing theory-practice divides and decreasing hierarchical levels between academic educators and preceptors.Surgical site infections (SSI) in open Hepatopancreatobiliary (HPB) surgery are common complications. They worsen patients' outcomes and prolong hospital stays. Their economic significance in the German diagnosis related groups (DRG) system is mostly unknown. To investigate their economic importance, we evaluated all cases for SSIs as well as clinical and financial parameters undergoing surgery in our centre from 2015 and 2016. Subsequently, we carried out a cost-revenue calculation by assessing our billing data and the cost matrix of the InEK (German Institute for the Payment System in Hospitals). A total of 13.5% of the patients developed a superficial, 9% a deep incisional, and 2.4% of the patients an organ space SSI. Compared with Patients without SSI, Patients with SSI had more comorbidities, were older, and their average length of stay was extended by 19 days (P less then  .001). The financial loss per SSI-case was €-7035.65 despite increased reimbursement, which resulted in a calculated total loss for the hospital of €-802 064.62 in 2015 and 2016. Surgical site infections are common complications of open HPB surgery, which lead to a significant increase in the cost per case. Further prevention strategies need to be developed. Besides, an adjustment of revenues must be demanded.

The aim of this study was to investigate in detail the traumatic birth experiences of midwives in the delivery rooms, and their attitudes, reactions, and coping strategies.

The design of the study is descriptive and the purposive sampling method was used. This approach is ideal for a preliminary exploration of the nature of a phenomenon. link3 Between October 2018 and January 2019, semi-structured interviews were conducted with a purposeful sample of midwives. The research was carried out with the participation of 29 midwives, who work in labour and birth room. They were asked to describe a particular stressful situation they had experienced during the birth process, their emotions about the event, and their coping strategies and support systems. All interviews were digitally recorded, stored in a database, and transferred to MAX Qualitative Data Analysis 18.1.0 for analysis.

As a result of the content analysis, three main themes emerged psychological impact, defensive practice, and expectations in terms of support from the hospital.