Factor Structure and Administration Measurement Invariance of the Beliefs Toward Mental Illness Scale in Latino College Samples: Paper-Pencil Versus Internet Administrations.

The psychometric properties of the paper–pencil and online versions of the Beliefs Toward Mental Illness Scale (BTMI) were examined in two studies with Latina/o individuals. In Study 1, 316 Latina/o participants completed the BTMI in a paper–pencil mode. The original three-factor model was found to be a poor fit model for the sample. Subsequent exploratory and confirmatory factor analyses identified a four-factor model as the best fitting model for the sample. The identified factors were Dangerousness, Social Dysfunction, Incurability, and Embarrassment. In Study 2, the identified best fit model was tested with 280 Latina/o participants who completed the BTMI online. The four-factor model had adequate fit. A series of measurement invariance tests on the fit model supported equal factor loadings, but rejected equivalent intercepts across paper–pencil and online administration methods, though partially equivalent intercepts and residuals were found. Consequently, modality-specific norms are recommended, depending on whether paper–pencil or online venues are utilized for administration

Effects of Metallicity on the Rotation Rates of Massive Stars

Recent theoretical predictions for low metallicity massive stars predict that these stars should have drastically reduced equatorial winds (mass loss) while on the main sequence, and as such should retain most of their angular momentum. Observations of both the Be/(B+Be) ratio and the blue-to-red supergiant ratio appear to have a metallicity dependence that may be caused by high rotational velocities. We have analyzed 39 archival Hubble Space Telescope Imaging Spectrograph (STIS), high resolution, ultraviolet spectra of O-type stars in the Magellanic Clouds to determine their projected rotational velocities V sin i. Our methodology is based on a previous study of the projected rotational velocities of Galactic O-type stars using International Ultraviolet Explorer (IUE) Short Wavelength Prime (SWP) Camera high dispersion spectra, which resulted in a catalog of V sin i values for 177 O stars. Here we present complementary V sin i values for 21 Large Magellanic Cloud and 22 Small Magellanic Cloud O-type stars based on STIS and IUE UV spectroscopy. The distribution of V sin i values for O type stars in the Magellanic Clouds is compared to that of Galactic O type stars. Despite the theoretical predictions and indirect observational evidence for high rotation, the O type stars in the Magellanic Clouds do not appear to rotate faster than their Galactic counterparts.Comment: accepted by ApJ, to appear 20 December 2004 editio

Distribution of Abundant and Active Planktonic Ciliates in Coastal and Slope Waters Off New England

Despite their important role of linking microbial and classic marine food webs, data on biogeographical patterns of microbial eukaryotic grazers are limited, and even fewer studies have used molecular tools to assess active (i.e., those expressing genes) community members. Marine ciliate diversity is believed to be greatest at the chlorophyll maximum, where there is an abundance of autotrophic prey, and is often assumed to decline with depth. Here, we assess the abundant (DNA) and active (RNA) marine ciliate communities throughout the water column at two stations off the New England coast (Northwest Atlantic)—a coastal station 43 km from shore (40 m depth) and a slope station 135 km off shore (1,000 m). We analyze ciliate communities using a DNA fingerprinting technique, Denaturing Gradient Gel Electrophoresis (DGGE), which captures patterns of abundant community members. We compare estimates of ciliate communities from SSU-rDNA (abundant) and SSU-rRNA (active) and find complex patterns throughout the water column, including many active lineages below the photic zone. Our analyses reveal (1) a number of widely-distributed taxa that are both abundant and active; (2) considerable heterogeneity in patterns of presence/absence of taxa in offshore samples taken 50 m apart throughout the water column; and (3) three distinct ciliate assemblages based on position from shore and depth. Analysis of active (RNA) taxa uncovers biodiversity hidden to traditional DNA-based approaches (e.g., clone library, rDNA amplicon studies)

The Utility of Peer-to-Peer Practice for Teaching Speech-Language Pathology Students Transnasal Endoscopy

Introduction: Transnasal flexible endoscopy (TNFE) is necessary for multiple assessments in speech-language pathology (SLP), but it is generally considered an advanced practice technique to be learned during clinical practice. As such, there is no standardized way that it is taught in training programs, leading to a substantial knowledge gap for new graduates. Though peer-to-peer practice has been discussed as an important step in training, it is not clear whether it confers additional benefits above and beyond simulation. This study sought to answer that question in the areas of student confidence, endoscopy speed, and motivation to pursue further TNFE experiences. Methods: Thirty-six SLP graduate students completed TNFE training and one of two practice conditions: simulation only or simulation with additional peer-to-peer practice. Outcome measures included confidence and comfort surveys, intrinsic motivation to complete an additional TNFE experience, and speed of TNFE. Results: No significant differences were found between the two groups for any measure, and consistently low effect sizes indicated there was little difference between groups. Conclusions: These results indicate that teaching TNFE through simulation may provide similar outcomes to peer-to-peer practice during the initial training that an SLP graduate program can provide. This adds to the literature indicating that TNFE simulation is a worthwhile addition to SLP programs

Texas General Land Office Parcels: El Paso, Hudspeth, And Reeves Counties, Texas

In June 2015, Natural Resource Group, LLC conducted Phase I cultural resource investigations within eight parcels that are managed by the Texas General Land Office. The tracts are located in El Paso, Hudspeth, and Reeves counties, Texas and the studies are associated with Phase 1 of the Roadrunner Gas Transmission, LLC (Roadrunner) Roadrunner Project. Roadrunner has entered into an operating agreement with ONEOK WesTex Transmission Company, L.L.C. (WesTex), a subsidiary of ONEOK, to construct, operate and maintain an intrastate pipeline in the State of Texas under the jurisdiction of the Texas Railroad Commission. WesTex plans to construct approximately 205 miles of 30-inch diameter natural gas intrastate pipeline that begins in Pecos County, Texas, and extends westward across Reeves, Culberson, Hudspeth, and El Paso counties. Construction will occur in two stages (Phase 1 and Phase 2). Phase 1 consists of two greenfield segments on the eastern and western ends of the proposed route that total approximately 105 miles. The Phase 2 corridor is approximately 100 miles long, and connects the two Phase 1 segments by generally following an existing pipeline corridor. The studies were authorized under Texas Antiquities Permit #7252 and General Land Office Authorization to Conduct Archeology No. 15-0010. They were conducted within a 300-foot-wide survey corridor and along segments of five proposed access roads. No previously recorded archaeological sites or historic structures occur within the investigated areas, and no new cultural resources were identified during the field effort. Therefore, we recommend that construction be allowed to proceed as currently planned without further consideration of cultural resources

Beliefs about Mental Illness in a Spanish Speaking Latinx American Sample

The US Hispanic population is large and rapidly growing, with serious healthcare disparities. Alarmingly, 67% of Hispanic adults with a mental illness go untreated. Attempts to increase treatment rates have had limited success, likely partly due to stigma beliefs. There is an urgent need to develop and utilize a Spanish language stigma assessment tool. The current study is the first to do so, translating the Beliefs Toward Mental Illness (BTMI; Hirai et al., 2018) scale into Spanish (S-BTMI). Our psychometric findings with English-Spanish bilingual Latinx undergraduate students suggest that the S-BTMI can be a reliable measure of mental illness stigma. The BTMI’s 4-factor solution was confirmed by the S-BTMI. Language invariance tests for the S-BTMI and BTMI demonstrated metric invariance and partial scalar invariance. The S-BTMI’s factors produced strong internal consistency and two-week test-retest reliability. A previous Latinx sample’s BTMI scores were similar to the current S-BTMI scores, except for greater endorsement of incurability beliefs for the Spanish version. Average stigma levels were fairly low in the current sample. Use of the BTMI-S can improve our understanding of stigma, and its relationships to language, culture, acculturation, and treatment-seeking in Latinx communities

A Longitudinal Investigation of the Efficacy of Online Expressive Writing Interventions for Hispanic Students Exposed to Traumatic Events: Competing Theories of Action

Objective: Although expressive writing (EW) appears efficacious for treating a range of posttraumatic stress (PTS) symptoms including diagnosed PTSD, little is known about its efficacy when offered online and for ethnic/cultural minority populations such as Hispanic individuals. The current study examined the longitudinal effects of two online EW tasks for treating PTS symptoms in a Hispanic student sample. Design: Seventy-one participants who had experienced a traumatic event were randomly assigned to either an emotion-focused (EM) writing group or a fact-focused (FC) writing group and completed online writing sessions for three consecutive days. Participants completed online assessments at 1-week, 1-month, and 3-month follow-ups. The PTSD Checklist–DSM-5 version was used to assess PTS symptoms. Results: Both groups reported statistically significant reductions in severity of PTS symptoms at 1-week follow-up with the EM group demonstrating statistically significantly greater symptom reductions than the FC group. Differential longitudinal effects over the 3-month follow-up periods were found for some PTS domains, with the EM group showing superior improvements relative to the FC group. Conclusion: EW delivered online can be useful for Hispanic individuals with PTS symptoms following traumatic life events. Further, the current findings align with an inhibitory learning model for explaining EW’s mechanism of action

The Magnitude of Lift Forces Acting on Drops and Bubbles in Liquids Flowing Inside Microchannels

Hydrodynamic lift forces offer a convenient way to manipulate particles in microfluidic applications, but there is little quantitative information on how non-inertial lift mechanisms act and compete with each other in the confined space of microfluidic channels. This paper reports measurements of lift forces on nearly spherical drops and bubbles, with diameters from one quarter to one half of the width of the channel, flowing in microfluidic channels, under flow conditions characterized by particle capillary numbers CaP = 0.0003–0.3 and particle Reynolds numbers ReP = 0.0001–0.1. For CaP < 0.01 and ReP < 0.01 the measured lift forces were much larger than predictions of deformation-induced and inertial lift forces found in the literature, probably due to physicochemical hydrodynamic effects at the interface of drops and bubbles, such as the presence of surfactants. The measured forces could be fit with good accuracy using an empirical formula given herein. The empirical formula describes the power-law dependence of the lift force on hydrodynamic parameters (velocity and viscosity of the carrier phase; sizes of channel and drop or bubble), and includes a numerical lift coefficient that depends on the fluids used. The empirical formula using an average lift coefficient of [similar]500 predicted, within one order of magnitude, all lift force measurements in channels with cross-sectional dimensions below 1 mm.Chemistry and Chemical Biolog