Rotating Vessels for Growing Protein Crystals

Rotating vessels have been proposed as means of growing larger, more nearly uniform protein crystals than would otherwise be possible in the presence of normal Earth gravitation. Heretofore, nonrotating vessels have been used. It is difficult to grow high-quality protein crystals in the terrestrial gravitational field because of convection plumes created by the interaction between gravitation and density gradients in protein-solution depletion layers around growing crystals. The density gradients and the associated convection plumes cause the surfaces of growing crystals to be exposed to nonuniform solution densities, thereby causing the crystals to form in irregular shapes. The microgravitational environment of outer space has been utilized to eliminate gravitation-induced convection, but this approach is generally not favorable because of the high cost and limited availability of space flight. The use of a rotating vessel according to the proposal is intended to ameliorate the effects of gravitation and the resultant convection, relative to the corresponding effects in a non-rotating vessel. The rotation would exert an averaging effect over time, distributing the convective force on the depletion layer. Therefore, the depletion layer would be more nearly uniform and, as a result, the growing crystal would be more nearly perfect. The proposal admits of variations (see figure), including the following: The growing crystal could be rotated about its own central axis or an external axis. The crystal-growth vessel could be of any of various shapes, including cylindrical, hemispherical, conical, and combinations thereof. The crystal-growth vessel could be suspended in a viscous fluid in an outer vessel to isolate the growing crystal from both ambient vibrations and vibrations induced by a mechanism that drives the rotation. The rotation could be coupled to the crystal-growth vessel by viscous or magnetic means. The crystal-growth vessel could be supported within the outer vessel by use of a magnetic field. The crystal-growth vessel and the outer vessel could be configured in a variety of ways to facilitate heat transfer, instrumentation, and rotation

The Development, Validation, and Application of the Motivation Scale of Disability Sport Consumption (MSDSC)

Consumer motivation, “the driving force within individuals that impels them to action” (Schiffman & Kanuk, 2004, p. 87), assists in identifying why consumers attend sporting events, and if they plan to repatriate or consume merchandise and media (Byon, Cottingham, & Carroll, 2010; Kim, Greenwell, Andrew, Lee, & Mahony, 2008). The Motivation Scale for Sport Consumption (MSSC) (Trail & James, 2001), consisting of factors that identify specific consumer motives (Trail & James, 2001; Wann, 1995), was tested in the context of disability sport (Byon, Carroll, Cottingham, Grady, & Allen, 2011; Byon et al., 2010) but did not take into account motives specific to disability. To better understand consumer motivation in this context, the purpose of this study is to detect motives specific to disability and test them in concert with the MSSC to develop a disability-specific motivation scale, the Motivation Scale for Disability Sport Consumption (MSDSC), then determine what motives are predictor variables for repatriation intentions, intended merchandise purchase and intended media consumption. In the context of the 2011 collegiate wheelchair basketball championships, three disability-specific motives were recognized, including cultural education, inspiration and the supercrip image; items were developed to represent these factors. Violence was also examined due to the perceived juxtaposition of violence and disability. These factors were combined with those from the most recent version of the MSSC (Trail, 2010): (a) acquisition of knowledge, (b) escape, (c) social interaction, (d) attraction, (e) drama, (f) physical skill, and (g) aggression and violence (Kim et al., 2008). Data from a pilot study was analyzed first by exploratory factor analysis, followed by a full data analysis including exploratory and confirmatory factor analyses. A finalized model of motivation consists of nine factors: inspiration, violent aggression, acquisition of knowledge, supercrip image, escape, social interaction, physical attraction, and drama and physical skill/aesthetics. Three multiple regression analyses determined that four factors (acquisition of knowledge, escape, physical skill/aesthetics and social interaction) are significant predictor motives for repatriation intentions, intended merchandise purchase and intended media consumption. As these are the most impactful predictor variables, practitioners should promote images related to these motives to increase consumption

Is It Time We Changed How We Measure Length of Stay for Hip and Knee Arthroplasty?

Patient length of stay (LOS) for lower limb arthroplasty is a frequently quoted outcome measure. However, the use of mean values in days is prone to being skewed by outliers. Between January 2013 and December 2015, patient LOS for primary hip and knee replacement was collected in 1,168 patients. There were two groups: pre- and postinstitution of the Rapid Recovery Program. The hypothesis was that reducing LOS would highlight proportionate differences when using hours as the measuring unit. Statistical analysis confirmed a significant reduction in LOS between the Enhanced Recovery Program and Rapid Recovery Program ( < 0.001). Use of the median LOS reduces the impact of outliers. Use of hours as the unit of measure of LOS enabled analysis of the time of day of discharge. With decreasing LOS and day-case arthroplasty, a measurement in median hours should become the standard to allow for the detection of subtle changes

Spiritual Experiences of Adults with Advanced Cancer in Outpatient Clinical Settings

Context Adults who have advanced cancer experience distress, and many use religion and spirituality to cope. Research on the spiritual experiences of advanced cancer patients will help guide the provision of high-quality spiritual care. Objectives To qualitatively describe advanced cancer patients’ spiritual experiences of illness. Methods We conducted semi-structured qualitative interviews at a single cancer center with 21 patients with stage IV solid malignancies who had a prognosis of less than 12 months, as estimated by each patient’s medical oncologist. Five investigators conducted a thematic analysis of the transcribed interviews. Results We found 31 patients who were eligible for enrollment, and 21 (67.7%) participated in interviews to thematic saturation. Using a thematic-analysis approach, five major themes emerged. Relationships with family and friends was the most important theme among all 21 patients irrespective of their religious or spiritual identity. Relationship with God and faith community was frequently identified by those who considered themselves spiritually religious. Cancer often led to reflection about the meaning of life and the nature of existential suffering Patients addressed the extent to which identity was changed or maintained through the cancer experience, and some expressed acceptance as a way of coping with illness. Conclusions Spiritual care for dying cancer patients should always include the exploration of relationships with family and friends, as well as God and faith community for some patients. Relationships with family, friends, and God can be a source of strength for many. Making meaning, addressing identity concerns, supporting acceptance as a resource for coping with illness, and acknowledging existential suffering will often arise for these patients

Addressing Personal Barriers to Advance Care Planning: Qualitative Investigation of a Mindfulness-Based Intervention for Adults with Cancer and Their Family Caregivers

Objective Advance care planning (ACP) increases quality of life and satisfaction with care for those with cancer and their families, yet these important conversations often do not occur. Barriers include patients’ and families’ emotional responses to cancer, such as anxiety and sadness, which can lead to avoidance of discussing illness-related topics such as ACP. Interventions that address psychological barriers to ACP are needed. The purpose of this study was to explore the effects of a mindfulness intervention designed to cultivate patient and caregiver emotional and relational capacity to respond to the challenges of cancer with greater ease, potentially decreasing psychological barriers to ACP and enhancing ACP engagement. Method The Mindfully Optimizing Delivery of End-of-Life (MODEL) Care intervention provided 12 hours of experiential training to two cohorts of six to seven adults with advanced-stage cancer and their family caregivers (n = 13 dyads). Training included mindfulness practices, mindful communication skills development, and information about ACP. Patient and caregiver experiences of the MODEL Care program were assessed using semistructured interviews administered immediately postintervention and open-ended survey questions delivered immediately and at 4 weeks postintervention. Responses were analyzed using qualitative methods. Result Four salient themes were identified. Patients and caregivers reported the intervention (1) enhanced adaptive coping practices, (2) lowered emotional reactivity, (3) strengthened relationships, and (4) improved communication, including communication about their disease. Significance of results The MODEL Care intervention enhanced patient and caregiver capacity to respond to the emotional challenges that often accompany advanced cancer and decreased patient and caregiver psychological barriers to ACP

Abbreviated dignity therapy for adults with advanced-stage cancer and their family caregivers: Qualitative analysis of a pilot study

Objective Dignity therapy (DT) is designed to address psychological and existential challenges that terminally ill individuals face. DT guides patients in developing a written legacy project in which they record and share important memories and messages with those they will leave behind. DT has been demonstrated to ease existential concerns for adults with advanced-stage cancer; however, lack of institutional resources limits wide implementation of DT in clinical practice. This study explores qualitative outcomes of an abbreviated, less resource-intensive version of DT among participants with advanced-stage cancer and their legacy project recipients. Method Qualitative methods were used to analyze postintervention interviews with 11 participants and their legacy recipients as well as the created legacy projects. Direct content analysis was used to assess feedback from the interviews about benefits, barriers, and recommendations regarding abbreviated DT. The legacy projects were coded for expression of core values. Result Findings suggest that abbreviated DT effectively promotes (1) self-expression, (2) connection with loved ones, (3) sense of purpose, and (4) continuity of self. Participants observed that leading the development of their legacy projects promoted independent reflection, autonomy, and opportunities for family interaction when reviewing and discussing the projects. Consistent with traditional DT, participants expressed “family” as the most common core value in their legacy projects. Expression of “autonomy” was also a notable finding. Significance of results Abbreviated DT reduces resource barriers to conducting traditional DT while promoting similar benefits for participants and recipients, making it a promising adaptation warranting further research. The importance that patients place on family and autonomy should be honored as much as possible by those caring for adults with advanced-stage cancer

Mindfulness Training Supports Quality of Life and Advance Care Planning in Adults With Metastatic Cancer and Their Caregivers: Results of a Pilot Study

Background: Emotional distress often causes patients with cancer and their family caregivers (FCGs) to avoid end-of-life discussions and advance care planning (ACP), which may undermine quality of life (QoL). Most ACP interventions fail to address emotional barriers that impede timely ACP. Aim: We assessed feasibility, acceptability, and preliminary effects of a mindfulness-based intervention to facilitate ACP for adults with advanced-stage cancer and their FCGs. Design: A single-arm pilot was conducted to assess the impact of a 6-week group mindfulness intervention on ACP behaviors (patients only), QoL, family communication, avoidant coping, distress, and other outcomes from baseline (T1) to post-intervention (T2) and 1 month later (T3). Participants: Eligible patients had advanced-stage solid malignancies, limited ACP engagement, and an FCG willing to participate. Thirteen dyads (N = 26 participants) enrolled at an academic cancer center in the United States. Results: Of eligible patients, 59.1% enrolled. Attendance (70.8% across 6 sessions) and retention (84.6% for patients; 92.3% for FCGs) through T3 were acceptable. Over 90% of completers reported high intervention satisfaction. From T1 to T3, patient engagement more than doubled in each of 3 ACP behaviors assessed. Patients reported large significant decreases in distress at T2 and T3. Family caregivers reported large significant improvements in QoL and family communication at T2 and T3. Both patients and FCGs reported notable reductions in sleep disturbance and avoidant coping at T3. Conclusions: The mindfulness intervention was feasible and acceptable and supported improvements in ACP and associated outcomes for patients and FCGs. A randomized trial of mindfulness training for ACP is warranted

Pan-Cancer Analysis of lncRNA Regulation Supports Their Targeting of Cancer Genes in Each Tumor Context

Long noncoding RNAs (lncRNAs) are commonly dys-regulated in tumors, but only a handful are known toplay pathophysiological roles in cancer. We inferredlncRNAs that dysregulate cancer pathways, onco-genes, and tumor suppressors (cancer genes) bymodeling their effects on the activity of transcriptionfactors, RNA-binding proteins, and microRNAs in5,185 TCGA tumors and 1,019 ENCODE assays.Our predictions included hundreds of candidateonco- and tumor-suppressor lncRNAs (cancerlncRNAs) whose somatic alterations account for thedysregulation of dozens of cancer genes and path-ways in each of 14 tumor contexts. To demonstrateproof of concept, we showed that perturbations tar-geting OIP5-AS1 (an inferred tumor suppressor) andTUG1 and WT1-AS (inferred onco-lncRNAs) dysre-gulated cancer genes and altered proliferation ofbreast and gynecologic cancer cells. Our analysis in-dicates that, although most lncRNAs are dysregu-lated in a tumor-specific manner, some, includingOIP5-AS1, TUG1, NEAT1, MEG3, and TSIX, synergis-tically dysregulate cancer pathways in multiple tumorcontexts

Pan-cancer Alterations of the MYC Oncogene and Its Proximal Network across the Cancer Genome Atlas

Although theMYConcogene has been implicated incancer, a systematic assessment of alterations ofMYC, related transcription factors, and co-regulatoryproteins, forming the proximal MYC network (PMN),across human cancers is lacking. Using computa-tional approaches, we define genomic and proteo-mic features associated with MYC and the PMNacross the 33 cancers of The Cancer Genome Atlas.Pan-cancer, 28% of all samples had at least one ofthe MYC paralogs amplified. In contrast, the MYCantagonists MGA and MNT were the most frequentlymutated or deleted members, proposing a roleas tumor suppressors.MYCalterations were mutu-ally exclusive withPIK3CA,PTEN,APC,orBRAFalterations, suggesting that MYC is a distinct onco-genic driver. Expression analysis revealed MYC-associated pathways in tumor subtypes, such asimmune response and growth factor signaling; chro-matin, translation, and DNA replication/repair wereconserved pan-cancer. This analysis reveals insightsinto MYC biology and is a reference for biomarkersand therapeutics for cancers with alterations ofMYC or the PMN

Measurement of inclusive D*+- and associated dijet cross sections in photoproduction at HERA

Inclusive photoproduction of D*+- mesons has been measured for photon-proton centre-of-mass energies in the range 130 < W < 280 GeV and a photon virtuality Q^2 < 1 GeV^2. The data sample used corresponds to an integrated luminosity of 37 pb^-1. Total and differential cross sections as functions of the D* transverse momentum and pseudorapidity are presented in restricted kinematical regions and the data are compared with next-to-leading order (NLO) perturbative QCD calculations using the "massive charm" and "massless charm" schemes. The measured cross sections are generally above the NLO calculations, in particular in the forward (proton) direction. The large data sample also allows the study of dijet production associated with charm. A significant resolved as well as a direct photon component contribute to the cross section. Leading order QCD Monte Carlo calculations indicate that the resolved contribution arises from a significant charm component in the photon. A massive charm NLO parton level calculation yields lower cross sections compared to the measured results in a kinematic region where the resolved photon contribution is significant.Comment: 32 pages including 6 figure