A Determination of the Bothe Depression Factor for Discs in Water

The purpose of this work is to determine experimentally the depression of the neutron density by a detecting foil. The depression factor is known as the "self-shading" of the foil

Effect of Stocking Rates on Plant Morphology in the Inner Mongolia Steppe of China

During the long period of co-evolution with herbivores, range plants have adapted and developed resistant mechanisms in response to grazing (Briske, 1991). The objective of this experiment was to determine the morphological response of a number of the dominant plant species in the Inner Mongolia steppe of China to stocking rate

Prospectus, May 7, 1971

PREPAREDNESS PROGRAM GIVES SECOND CHANCE; VIC Helps To Rehabilitate Youth; Nurses, Hygienists In Health Week ; One Way or Two?; Student Deferment May End; One Man Band; Bull Sheet: Elections, Game Week, Sisters, Hot Line, Wit n\u27 Wisdom, Counselor Appts., Tau Epsilon, Voting, New Paperbacks, Anti War Activities, IOC, Vets Meeting, About Drugs, Need Help, Book Depository, LRC File, Poncho Pilot; Parkland Belts Walbash Twice; P.C. Board Holds Elections-- Consider Nepotism Policy; PC Faculty Art Exhibit; Know Your Candidate: Student Government Elections, Will They Pass or Fail?; David A. Friedmann, President; Robert D. Bales, President; John Stuckey, Vice President; Bob Hilton, Treasurer; Diane Topping, Secretary; Becky Terrell, Convocations; Terry Cassidy, Campus Organizationshttps://spark.parkland.edu/prospectus_1971/1007/thumbnail.jp

Prospectus, September 14, 1977

TWO VIE FOR VEEP POST: STUDENT GOVERNMENT ELECTIONS TODAY; Elections scheduled today and tomorrow; District 505 entitled to minimum credit grants; Activities postponed; Unopposed; Shiloh\u27s and Sonshine Circle to perform; Survival of democratic society topic at forum; Vets must go by book; \u27Self Defense\u27 is under attack; Youngest brew master is nun; Warners, women battle over \u27Jump On It\u27; Male prostitute makes history; News From \u27Her Say\u27: Ten women earn wings; UAW asks Congress for maternity benefits \u27as soon as possible\u27; Career Awareness Course for women Wednesday eve.; Instructors earn high grades from PC students; Back orders on home insulation cause woes; Blowing of the shofar means Rosh Hashanah, start of 5,738 New Year; Springfield news: senior citizens, equal language; The gas man cometh...; Holograph exhibit at PC tomorrow; Letting out some Slack...: Answers for queries on PC; Chicago painter displays at KCPA; Prospectus Pigskin Preview: Cobra Grid Schedule, Parkland Roster, Fight on Cobras; Alaskan wilderness is summer home to Basler; Parkland Learning Laboratory: Early help available to students; Stu-Go explores check cashing for PC people; PC music groups have many openings; Jumers: German touch; \u27Elite\u27 women to get public house; Home care topic to be presented; Classifieds; X-country opens Saturday; Spikettes look good; Sports shorts; Bio instructor Cox wins Fast Freddy; Intramural sign up closing; The continuing battle for Number 1; Parkland to host nationalshttps://spark.parkland.edu/prospectus_1977/1013/thumbnail.jp

End of life care: The experiences of advance care planning amongst family caregivers of people with advanced dementia - A qualitative study

Background: End of life decisions for people with advanced dementia are reported as often being difficult for families as they attempt to make appropriate and justified decisions. Aim: To explore the experiences of advance care planning amongst family caregivers of people with advanced dementia. Design: Qualitative research including a series of single cases (close family relatives). Methods: A purposive sample of 12 family caregivers within a specialist dementia unit was interviewed about their experiences of advance care planning between August 2009 and February 2010. Results/Findings: Family caregivers need encouragement to ask the right questions during advance care planning to discuss the appropriateness of nursing and medical interventions at the end of life. Conclusions: Advance care planning can be facilitated with the family caregiver in the context of everyday practice within the nursing home environment for older people with dementia

Transparent Meta-Analysis of Prospective Memory and Aging

Prospective memory (ProM) refers to our ability to become aware of a previously formed plan at the right time and place. After two decades of research on prospective memory and aging, narrative reviews and summaries have arrived at widely different conclusions. One view is that prospective memory shows large age declines, larger than age declines on retrospective memory (RetM). Another view is that prospective memory is an exception to age declines and remains invariant across the adult lifespan. The present meta-analysis of over twenty years of research settles this controversy. It shows that prospective memory declines with aging and that the magnitude of age decline varies by prospective memory subdomain (vigilance, prospective memory proper, habitual prospective memory) as well as test setting (laboratory, natural). Moreover, this meta-analysis demonstrates that previous claims of no age declines in prospective memory are artifacts of methodological and conceptual issues afflicting prior research including widespread ceiling effects, low statistical power, age confounds, and failure to distinguish between various subdomains of prospective memory (e.g., vigilance and prospective memory proper)

How cigarette smoking may increase the risk of anxiety symptoms and anxiety disorders : a critical review of biological pathways

Multiple studies have demonstrated an association between cigarette smoking and increased anxiety symptoms or disorders, with early life exposures potentially predisposing to enhanced anxiety responses in later life. Explanatory models support a potential role for neurotransmitter systems, inflammation, oxidative and nitrosative stress, mitochondrial dysfunction, neurotrophins and neurogenesis, and epigenetic effects, in anxiety pathogenesis. All of these pathways are affected by exposure to cigarette smoke components, including nicotine and free radicals. This review critically examines and summarizes the literature exploring the role of these systems in increased anxiety and how exposure to cigarette smoke may contribute to this pathology at a biological level. Further, this review explores the effects of cigarette smoke on normal neurodevelopment and anxiety control, suggesting how exposure in early life (prenatal, infancy, and adolescence) may predispose to higher anxiety in later life. A large heterogenous literature was reviewed that detailed the association between cigarette smoking and anxiety symptoms and disorders with structural brain changes, inflammation, and cell-mediated immune markers, markers of oxidative and nitrosative stress, mitochondrial function, neurotransmitter systems, neurotrophins and neurogenesis. Some preliminary data were found for potential epigenetic effects. The literature provides some support for a potential interaction between cigarette smoking, anxiety symptoms and disorders, and the above pathways; however, limitations exist particularly in delineating causative effects. The literature also provides insight into potential effects of cigarette smoke, in particular nicotine, on neurodevelopment. The potential treatment implications of these findings are discussed in regards to future therapeutic targets for anxiety. The aforementioned pathways may help mediate increased anxiety seen in people who smoke. Further research into the specific actions of nicotine and other cigarette components on these pathways, and how these pathways interact, may provide insights that lead to new treatment for anxiety and a greater understanding of anxiety pathogenesis

The James Webb Space Telescope Mission: Optical Telescope Element Design, Development, and Performance

The James Webb Space Telescope (JWST) is a large, infrared space telescope that has recently started its science program which will enable breakthroughs in astrophysics and planetary science. Notably, JWST will provide the very first observations of the earliest luminous objects in the Universe and start a new era of exoplanet atmospheric characterization. This transformative science is enabled by a 6.6 m telescope that is passively cooled with a 5-layer sunshield. The primary mirror is comprised of 18 controllable, low areal density hexagonal segments, that were aligned and phased relative to each other in orbit using innovative image-based wavefront sensing and control algorithms. This revolutionary telescope took more than two decades to develop with a widely distributed team across engineering disciplines. We present an overview of the telescope requirements, architecture, development, superb on-orbit performance, and lessons learned. JWST successfully demonstrates a segmented aperture space telescope and establishes a path to building even larger space telescopes.Comment: accepted by PASP for JWST Overview Special Issue; 34 pages, 25 figure