Letter from the Guest Editor

Kathryn Belicki, Guest Editor, provides an introduction to the articles featured in this issue

Rola Ibizy w kontaktach handlowych w zachodniej części basenu Morza Śródziemnego w VII–III wieku p.n.e.

The aim of the paper is to determine the role of Ibiza in the Western Mediterranean, from the foundation of the first Phoenician settlement in the second half of the 7th century BC until the Roman conquest. In the first part of the article, I discuss the geographical characteristics of the Balearic Islands and the weather conditions on the Mediterranean Sea. The main analysis, based on selected historical and archaeological finds, primarily amphoras, has the objective of delineating the island’s economy and its place on commercial routes

The Relation Between Environmental Factors and Acting-Out Behaviours of Youth in a Treatment Centre

The present study examined the relation between social climate/staff attitude variables and disruptive behaviours within a school, a day-treatment service and three residences located in a centre for emotionally disturbed children. Ten categories of disruptive behaviour were recorded in three settings for ten weeks (five weeks in two settings). Data analysis revealed that the settings different significantly in acting-out indicidence. A series of discriminant analyses indicated that what might be referred to as a “traditional” approach best discriminated the settings. Social climate variables were found to be a major component of the discriminating functions

Reasons for Forgiving: Individual Differences and Emotional Outcomes

This research is part of a program to identify common forms of forgiveness and study the outcomes associated with different ways of forgiving. Two samples, one in Canada (N = 274) and one in India (N = 159), completed a third version of the Reasons for Forgiving Questionnaire (R4FQ), several measures of individual differences, as well as measures of affect and mood while imagining their injurer. Nine R4FQ subscales were derived: For the Relationship, To Feel Better, Based on Principle, Because Injurer Reformed, To Demonstrate Moral Superiority, Because Understood Injurer, For God, Because of Social Pressure, and For Pragmatic Reasons. These subscales were differentially related to religiosity, attachment security, trait anger, collectivism, and individualism. Positive emotional outcomes were associated with forgiving for the relationship, based on principle, because injurer reformed, and because understood injurer. In contrast, negative outcomes were associated with forgiving To Demonstrate Moral Superiority, Because of Social Pressure, and For Pragmatic Reasons.Brock University Library Open Access Publishing Fun

The Zwicky Transient Facility Camera

The Zwicky Transient Facility Camera (ZTFC) is a key element of the ZTF Observing System, the integrated system of optoelectromechanical instrumentation tasked to acquire the wide-field, high-cadence time-domain astronomical data at the heart of the Zwicky Transient Facility. The ZTFC consists of a compact cryostat with large vacuum window protecting a mosaic of 16 large, wafer-scale science CCDs and 4 smaller guide/focus CCDs, a sophisticated vacuum interface board which carries data as electrical signals out of the cryostat, an electromechanical window frame for securing externally inserted optical filter selections, and associated cryo-thermal/vacuum system support elements. The ZTFC provides an instantaneous 47 deg^2 field of view, limited by primary mirror vignetting in its Schmidt telescope prime focus configuration. We report here on the design and performance of the ZTF CCD camera cryostat and report results from extensive Joule-Thompson cryocooler tests that may be of broad interest to the instrumentation community

The Keck Cosmic Web Imager Integral Field Spectrograph

We report on the design and performance of the Keck Cosmic Web Imager (KCWI), a general purpose optical integral field spectrograph that has been installed at the Nasmyth port of the 10 m Keck II telescope on Maunakea, Hawaii. The novel design provides blue-optimized seeing-limited imaging from 350–560 nm with configurable spectral resolution from 1000–20,000 in a field of view up to 20'' × 33''. Selectable volume phase holographic (VPH) gratings and high-performance dielectric, multilayer silver, and enhanced-aluminum coatings provide end-to-end peak efficiency in excess of 45% while accommodating the future addition of a red channel that will extend wavelength coverage to 1 micron. KCWI takes full advantage of the excellent seeing and dark sky above Maunakea with an available nod-and-shuffle observing mode. The instrument is optimized for observations of faint, diffuse objects such as the intergalactic medium or cosmic web. In this paper, a detailed description of the instrument design is provided with measured performance results from the laboratory test program and 10 nights of on-sky commissioning during the spring of 2017. The KCWI team is lead by Caltech and JPL (project management, design, and implementation) in partnership with the University of California at Santa Cruz (camera optical and mechanical design) and the W. M. Keck Observatory (observatory interfaces)

The Zwicky Transient Facility: Observing System

The Zwicky Transient Facility (ZTF) Observing System (OS) is the data collector for the ZTF project to study astrophysical phenomena in the time domain. ZTF OS is based upon the 48 inch aperture Schmidt-type design Samuel Oschin Telescope at the Palomar Observatory in Southern California. It incorporates new telescope aspheric corrector optics, dome and telescope drives, a large-format exposure shutter, a flat-field illumination system, a robotic bandpass filter exchanger, and the key element: a new 47-square-degree, 600 megapixel cryogenic CCD mosaic science camera, along with supporting equipment. The OS collects and delivers digitized survey data to the ZTF Data System (DS). Here, we describe the ZTF OS design, optical implementation, delivered image quality, detector performance, and robotic survey efficiency