Adaptation of the State Trait Anxiety Inventory in Arabic: A Comparison with the American STAI

The main goal of the present study was to develop an Arabic adaptation of the State Trait Anxiety Inventory (STAI, Form Y, Spielberger, 1983). In addition, cultural and linguistic influences on the experience and expression of anxiety were assessed. The American STAI and fifty initial Arabic items were administered to 286 university students at the American University of Beirut, Lebanon. The American STAI was also administered to 336 university students at the University of South Florida. Item and factor analyses were conducted on responses of the calibration sample to obtain the final set of Arabic items, which was validated using the responses of the validation sample. In conducting item selection and validation of the Arabic STAI, internal consistency coefficients for subscales, corrected item-total correlations, alpha coefficients if-item-deleted, item-factor loadings, and theoretical meaningfulness were all used as criteria for selection of the best 10 Arabic items to be included in each subscale of the STAI: S-Anxiety Absent, S-Anxiety Present, T-Anxiety Absent, T-Anxiety present. The two-factor solution for the Arabic STAI yielded a simple solution with two distinct factors: Anxiety Present and Anxiety Absent for each of S-Anxiety and T-Anxiety, lending more support to the theoretical distinction of state and trait anxiety. Lebanese students reported significantly higher anxiety levels than their American peers on S-Anxiety Present, T-Anxiety Absent, and T-Anxiety Present, S-Anxiety and T-Anxiety of the American STAI. For S-Anxiety Absent, scores for the Lebanese sample were lower than American students but did not reach significance levels. S-Anxiety Absent and T-Anxiety Absent subscales assessed lower levels of anxiety rather than the higher levels of anxiety assessed by S-Anxiety Present and T-Anxiety Present. Females tend to experience and express higher levels of mild and severe anxiety symptoms as compared to males in both samples. Factor analyses of the American STAI for the American and Lebanese samples revealed similar two and three- factor solutions. For each of the State and trait subscales, three factors emerged: Anxiety Absent, Worry, and Emotionality factors, denoting the importance of cognitions and feelings in the experience and expression of anxiety

Key Education Issues in Review: Nevada Academic Content Standards

final_soap_GNV120025.fa: Assembly of Hemiargus ceraunus from Genbank SRA accession #SRR1299274, using multiple kmers (13,23,33,43,63) with SOAPdenovo-Trans v1.01. Different Kmer assemblies were combined with cd-hit-est and processed with the fastx toolkit. See Kawahara and Breinholt (2014) for more details

Margarita Denenburg, piano

Johann Sebastian BachWolfgang Amadeus MozartClaude DebussyRobert Schuman

A homoclinic tangle on the edge of shear turbulence

Experiments and simulations lend mounting evidence for the edge state hypothesis on subcritical transition to turbulence, which asserts that simple states of fluid motion mediate between laminar and turbulent shear flow as their stable manifolds separate the two in state space. In this Letter we describe a flow homoclinic to a time-periodic edge state. Its existence explains turbulent bursting through the classical Smale-Birkhoff theorem. During a burst, vortical structures and the associated energy dissipation are highly localized near the wall, in contrast to the familiar regeneration cycle

Hawkmoths Produce Anti-Bat Ultrasound

Bats and moths have been engaged in aerial warfare for nearly 65 Myr. This arms race has produced a suite of counter-adaptations in moths, including bat-detecting ears. One set of defensive strategies involves the active production of sound; tiger moths\u27 ultrasonic replies to bat attack have been shown to startle bats, warn the predators of bad taste and jam their biosonar. Here, we report that hawkmoths in the Choerocampina produce entirely ultrasonic sounds in response to tactile stimulation and the playback of biosonar attack sequences. Males do so by grating modified scraper scales on the outer surface of the genital valves against the inner margin of the last abdominal tergum. Preliminary data indicate that females also produce ultrasound to touch and playback of echolocation attack, but they do so with an entirely different mechanism. The anti-bat function of these sounds is unknown but might include startling, cross-family acoustic mimicry, warning of unprofitability or physical defence and/or jamming of echolocation. Hawkmoths present a novel and tractable system to study both the function and evolution of anti-bat defences

A note on the fibre-optic light-guides in the eye photophores of watasenia scintillans

A brief account is given of the anatomy and fibre-optic-like light-guiding properties of rod-like elements in the eye photophores on the ventral surface of the eyeball of the Japanese firefly squid Watasenia scintillans.These light-guiding elements form a dominant proportion of the volume of the photophore (which is assumed to function in counter-illumination) and are aligned such that light from the bioluminescent core is directed in acone downwards from the eye. A coplanar arrangement of lamellae in the light-guides strongly suggests that the light passing through will be narrowly restricted both in wavelength and polarization. These features are discussedwith regard to other recent findings in this species

Conservation Note on the Status of the Rare Endemic Marquesan Snout Butterfly, Libythea collenettei

The Marquesan snout butterfly (Libythea collenettei) also known as “Papillon à museau des Marquises,” is the only endemic butterfly from the Mar- quesas Islands, French Polynesia. The butterfly is known from just five historic records. We report results from an intensive two–week survey in 2018. Our survey took place on the two islands where historic collection records exist (Nuku Hiva and Ua Pou), plus Hiva Oa and Tahiti, where the species has been thought to exist. Despite visiting multiple localities including sites where the species was previously observed, we were unsuccessful at detecting this species. The larval host plant, Celtis pacifica (Cannabaceae), can still be found on the Marquesas, indicating that the butterfly might still exist in the archipelago. Because the phenology of this species is unknown, future surveys should be conducted on the same islands but during different seasons. Given the very restricted geographic range of this species and threats to its habitat, we suggest that it be listed as endangered on the IUCN Red List