Results 31 to 40 of about 1,570,185 (264)

The structure of sperner k-families

Journal of Combinatorial Theory, Series A, 1976
AbstractIf P is a partially ordered set, a k-family of P is a subset which contains no chains of length k + 1. This paper examines the structure of the set of k-families of P. An extension of Dilworth's theorem is obtained by relating the maximum size of a k-family to certain partitions of P into chains.
Greene, Curtis, Kleitman, Daniel J.
openaire   +5 more sources

Structure and Supersaturation for Intersecting Families

The Electronic Journal of Combinatorics, 2019
The extremal problems regarding the maximum possible size of intersecting families of various combinatorial objects have been extensively studied. In this paper, we investigate supersaturation extensions, which in this context ask for the minimum number of disjoint pairs that must appear in families larger than the extremal threshold.
József Balogh, Shagnik Das, Hong Liu 0010, Maryam Sharifzadeh, Tuan Tran   +4 more
openaire   +5 more sources

Brothers, sisters, and the legacy of sibship: Childhood coresiding siblings and late-life cognitive decline in the United States [PDF]

Demographic Research
BACKGROUND: Siblings are the most common household companions in childhood, yet demographers know little about how sibship configurations reverberate across the life course to shape population‐level cognitive health at older ages.
Yiang Li
doaj   +1 more source

Sociological study of procedure of family structure change in Iran with emphasis on social development indices following Islamic Revolution

آداب الكوفة, 2021
The aim of this study is to study the social trend of changing the family structure in Iran, with a focus on social development indicators after the Islamic Revolution.
Gholamreza Kooshk ghazi , Majeed Karimi, Karamatollah Rasekh   +2 more
doaj   +1 more source

Analysis of the Changes in Rural Chinese Family Structure since Reform and Opening Up

Contemporary Social Sciences, 2020
This article uses data from censuses since 1982 to reveal changes in the family structure of rural China since the launch of reform and opening up and against the backdrop of institutional relocation, social transformation and an aging population ...
Wang Yuesheng
doaj  

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan, Michael Abele, Calogero Virgone, Michaela Kuhlen, Ricardo Lopez‐Almarez, Tal Ben‐Ami, Ewa Bien, Maja Cesen, Malgorzata A. Krawczyk, Andrea Ferrari, Gianni Bisogno, Yves Reguerre, Dominik T. Schneider, Louise Galmiche, Jorg Fuchs, Sarah Braungart, Bilgehan Yalcin, Ines B. Brecht, Daniel Orbach   +18 more
wiley   +1 more source

Cross-sectional relationship of perceived familial protective factors with depressive symptoms in vulnerable youth

BMC Psychiatry, 2018
Background There are multiple negative consequences associated with heavy episodic drinking and close associations between substance abuse and depression, alcohol-intoxicated adolescents (AIA) represent a vulnerable group.
Hanna E. Schwendemann, Heidi Kuttler, Thomas Mößle, Eva Maria Bitzer   +3 more
doaj   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source

Evidence‐Informed Multidisciplinary Consensus Guidance for the Psychosocial Care of Adolescents With High‐Risk Cancer: Recommendations From the Italian Association of Pediatric Hematology and Oncology

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adolescents with high‐risk cancer face complex developmental, psychosocial, and ethical challenges that extend beyond disease‐directed treatment. Although international recommendations exist for communication, psychosocial care, pediatric palliative care, survivorship, and shared decision‐making, these have largely evolved within ...
Johanna M. C. Blom, Dorella Scarponi, Giulia Zucchetti, Teresa Perillo, Maria Montanaro, Elisa Marconi, Chiara Rutigliano, Paolo Colavero, Paola Quarello, Marina Bertolotti, Monica Cellini, Carlo Clerici, Maurizio Mascarin, Francesca Bomben, Andrea Ferrari, the expert workgroup   +15 more
wiley   +1 more source