Organogenesis of anther-derived calluses in long-term cultures of Oenothera hookeri de Vries

1995 ◽  
Vol 42 (1) ◽  
pp. 91-96 ◽  
Author(s):  
Lidia Dora Martinez ◽  
Ines Noher de Halac
Keyword(s):  
Oenothera Hookeri ◽  
De Vries

Introduction: Kinship Bereavement in Later Life

1997 ◽  
Vol 35 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Brian De Vries
Keyword(s):  
Adult Child ◽  
Later Life ◽  
Short Term ◽  
Traumatic Grief ◽  
Death Of A Parent ◽  
De Vries ◽  
Longitudinal Effects ◽  
Analysis Of Variation

This article introduces a volume devoted to the examination of later-life bereavement: an analysis of variation in cause, course, and consequence. Six articles address and represent this variation and comprise this volume: 1) Prigerson et al. present case histories of the traumatic grief of spouses; 2) Hays et al. highlight the bereavement experiences of siblings in contrast to those spouses and friends; 3) Moss et al. address the role of gender in middle-aged children's responses to parent death; 4) Bower focuses on the language adopted by these adult children in accepting the death of a parent; 5) de Vries et al. explore the long-term, longitudinal effects on the psychological and somatic functioning of parents following the death of an adult child; and 6) Fry presents the short-term and longitudinal reactions of grandparents to the death of a grandchild. A concluding article is offered by de Vries stressing both the unique and common features of these varied bereavement experiences touching on some of the empirical issues and suggesting potential implications and applications.

scholarly journals New evidence of the Suess/de Vries cycle existing in historical naked-eye observations of sunspots

2020 ◽  
Vol 29 (1) ◽  
pp. 28-31
Author(s):  
Lihua Ma ◽  
José M. Vaquero
Keyword(s):  
Solar Activity ◽  
Earth Science ◽  
Historical Documents ◽  
Naked Eye ◽  
Long Term Changes ◽  
De Vries ◽  
Signal Changes ◽  
New Evidence ◽  
Sunspot Series

AbstractSolar activity affects geophysical and heliophysical processes. Long-term changes in solar activity are closely related to climate change. Solar physicists and earth science researchers need longer observations of solar activity. Current continuous observations of solar activity are only about 400 years. Some scholars have compiled naked-eye observations of sunspots from 200 BC to 1918 AD from historical documents. In this present work, the authors use the weighted wavelet transform to study the observations series. The results show the Suess - de Vries cycle with a period from 195- to 235-year existing in the discontinuous sunspot series. Meanwhile, the cycle signal changes with time. Especially, the Suess/de Vries cycle is relatively obvious from 200 BC to 400 AD, 800 AD to 1340 AD, 1610 AD to 1918 AD, with a period of about 211-year, about 195-year, and about 235-year, respectively.

Koolen-de Vries Syndrome: Clinical Report of an Adult and Literature Review

2016 ◽  
Vol 150 (1) ◽  
pp. 40-45 ◽  
Author(s):  
Claudia Ciaccio ◽  
Chiara Dordoni ◽  
Marco Ritelli ◽  
Marina Colombi
Keyword(s):  
Joint Hypermobility ◽  
Clinical Report ◽  
Ehlers Danlos Syndrome ◽  
Variable Level ◽  
Fourth Decade ◽  
De Vries ◽  
History Of ◽  
Danlos Syndrome ◽  
Insight Into

Koolen-de Vries syndrome (KdS) is a rare genetic condition characterized by typical facial dysmorphisms, cardiac and renal defects, skeletal anomalies, developmental delay, and intellectual disability of variable level. It is caused by a 440-680-kb deletion in the 17q21.31 region, encompassing CRHR1, MAPT, IMP5, STH, and KANSL1, or by an intragenic KANSL1 mutation. The majority of the patients reported are pediatric or young adults, and long-term studies able to define the prognosis of the disease are lacking. Here, we report a patient in the fourth decade misdiagnosed in the past as classical Ehlers-Danlos syndrome for the presence of generalized joint hypermobility, who carried a 546-kb deletion in 17q21.31, and compare his phenotype with those of the few KdS adults (aged >18 years) described so far. We observed a favorable prognosis of epilepsy and cardiovascular signs and reduction of joint hypermobility with age, thus providing insight into the natural history of the disorder.

scholarly journals Shaken and Stirred: When Bond Meets Suess–de Vries and Gnevyshev–Ohl

Solar Physics ◽  
2021 ◽  
Vol 296 (6) ◽  
Author(s):  
F. Stefani ◽  
R. Stepanov ◽  
T. Weier
Keyword(s):  
Present Model ◽  
Planetary Motion ◽  
Last Glacial Period ◽  
Transition To Chaos ◽  
Temporal Features ◽  
De Vries ◽  
Long Term Prediction ◽  
The Last Glacial ◽  
Grand Minima

AbstractWe argue that the most prominent temporal features of the solar dynamo, in particular the Hale cycle, the Suess–de Vries cycle (associated with variations of the Gnevyshev–Ohl rule), Gleissberg-type cycles, and grand minima can all be explained by combined synchronization with the 11.07-year periodic tidal forcing of the Venus–Earth–Jupiter system and the (mainly) 19.86-year periodic motion of the Sun around the barycenter of the solar system. We present model simulations where grand minima, and clusters thereof, emerge as intermittent and non-periodic events on millennial time scales, very similar to the series of Bond events which were observed throughout the Holocene and the last glacial period. If confirmed, such an intermittent transition to chaos would prevent any long-term prediction of solar activity, notwithstanding the fact that the shorter-term Hale and Suess–de Vries cycles are clocked by planetary motion.

Therapy and prevention for mental health: What if mental diseases are mostly not brain disorders?

2019 ◽  
Vol 42 ◽  
Author(s):  
John P. A. Ioannidis
Keyword(s):  
Mental Health ◽  
Mental Disease ◽  
Brain Disorders ◽  
Social Stressors ◽  
Labor Education ◽  
Mental Diseases ◽  
Long Term Follow Up ◽  
Political Decisions

AbstractNeurobiology-based interventions for mental diseases and searches for useful biomarkers of treatment response have largely failed. Clinical trials should assess interventions related to environmental and social stressors, with long-term follow-up; social rather than biological endpoints; personalized outcomes; and suitable cluster, adaptive, and n-of-1 designs. Labor, education, financial, and other social/political decisions should be evaluated for their impacts on mental disease.

Conceptual short-term memory (CSTM) supports core claims of Christiansen and Chater

2016 ◽  
Vol 39 ◽  
Author(s):  
Mary C. Potter
Keyword(s):  
Working Memory ◽  
Rapid Serial Visual Presentation ◽  
Language Comprehension ◽  
Short Term Memory ◽  
Visual Presentation ◽  
Long Term Memory ◽  
Short Term ◽  
Term Memory ◽  
Use Of Knowledge

AbstractRapid serial visual presentation (RSVP) of words or pictured scenes provides evidence for a large-capacity conceptual short-term memory (CSTM) that momentarily provides rich associated material from long-term memory, permitting rapid chunking (Potter 1993; 2009; 2012). In perception of scenes as well as language comprehension, we make use of knowledge that briefly exceeds the supposed limits of working memory.

Brief summary of Kleť photographic search programme for minor planets

1999 ◽  
Vol 173 ◽  
pp. 189-192
Author(s):  
J. Tichá ◽  
M. Tichý ◽  
Z. Moravec
Keyword(s):  
Ccd Camera ◽  
Minor Planet ◽  
Minor Planets ◽  
Main Belt

AbstractA long-term photographic search programme for minor planets was begun at the Kleť Observatory at the end of seventies using a 0.63-m Maksutov telescope, but with insufficient respect for long-arc follow-up astrometry. More than two thousand provisional designations were given to new Kleť discoveries. Since 1993 targeted follow-up astrometry of Kleť candidates has been performed with a 0.57-m reflector equipped with a CCD camera, and reliable orbits for many previous Kleť discoveries have been determined. The photographic programme results in more than 350 numbered minor planets credited to Kleť, one of the world's most prolific discovery sites. Nearly 50 per cent of them were numbered as a consequence of CCD follow-up observations since 1994.This brief summary describes the results of this Kleť photographic minor planet survey between 1977 and 1996. The majority of the Kleť photographic discoveries are main belt asteroids, but two Amor type asteroids and one Trojan have been found.

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