Relevant bibliographies by topics / Family rigidity

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Family rigidity'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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Journal articles on the topic "Family rigidity"

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Willis, James. "Decerebrate rigidity." British Journal of General Practice 57, no. 545 (December 1, 2007): 1012. http://dx.doi.org/10.3399/096016407782604776.

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Ma, Xiaonan, and Kefeng Liu. "On family rigidity theorems, I." Duke Mathematical Journal 102, no. 3 (May 2000): 451–74. http://dx.doi.org/10.1215/s0012-7094-00-10234-7.

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Glasner, S., and D. Maon. "Rigidity in topological dynamics." Ergodic Theory and Dynamical Systems 9, no. 2 (June 1989): 309–20. http://dx.doi.org/10.1017/s0143385700004983.

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AbstractBy analogy with the ergodic theoretical notion, we introduce notions of rigidity for a minimal flow (X, T) according to the various ways a sequence Tni can tend to the identity transformation. The main results obtained are:(i) On a rigid flow there exists a T-invariant, symmetric, closed relation Ñ such that (X, T) is uniformly rigid iff Ñ = Δ, the diagonal relation.(ii) For syndetically distal (hence distal) flows rigidity is equivalent to uniform rigidity.(iii) We construct a family of rigid flows which includes Körner's example, in which Ñ exhibits various kinds of behaviour, e.g. Ñ need not be an equivalence relation.(iv) The structure of flows in the above mentioned family is investigated. It is shown that these flows are almost automorphic.
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Nakagawa, Katsukuni. "Multifractal rigidity for piecewise linear Markov maps." Stochastics and Dynamics 17, no. 01 (December 15, 2016): 1750006. http://dx.doi.org/10.1142/s021949371750006x.

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We give an answer to the multifractal rigidity problem presented by Barreira, Pesin and Schmeling for the dimension spectra of Markov measures on the repellers of piecewise linear Markov maps with two branches. Thermodynamic formalism provides us with a one-parameter family of measures. Zero-temperature limit measures of this family and the concept of nondegeneracy of spectra play important roles.
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Palazzoli Selvini, M. "Family therapy with anorexic-bulimic girls. Beyond systemic rigidity." Eating and Weight Disorders - Studies on Anorexia, Bulimia and Obesity 2, no. 3 (September 1997): 156–59. http://dx.doi.org/10.1007/bf03339967.

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KOČINAC, S. Lj S., and V. MILANOVIĆ. "PHASE RIGIDITY OF POINT INTERACTIONS." Modern Physics Letters B 27, no. 01 (November 26, 2012): 1350001. http://dx.doi.org/10.1142/s0217984913500012.

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In this paper, we investigate phase rigidity of one-dimensional point interactions. With the aid of supersymmetric quantum mechanics (SUSYQM) we generate family of isospectral potentials describing point interactions. We than demonstrate that for SUSYQM generated bound states in the continuum (BIC) phase rigidity is always zero, while for bound states from discrete part of spectrum phase rigidity may vary from zero to unity, depending on the strength of point interaction.
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Shehada, Nahda. "Flexibility versus Rigidity in the Practice of Islamic Family Law." PoLAR: Political and Legal Anthropology Review 32, no. 1 (May 2009): 28–46. http://dx.doi.org/10.1111/j.1555-2934.2009.01022.x.

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Carvalho, A. De, M. Lyubich, and M. Martens. "Renormalization in the Hénon Family, I: Universality But Non-Rigidity." Journal of Statistical Physics 121, no. 5-6 (December 2005): 611–69. http://dx.doi.org/10.1007/s10955-005-8668-4.

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Verma, Deeptak, and Dennis R. Livesay. "Is Rigidity Conserved Across the Class A Beta-Lactamase Family?" Biophysical Journal 102, no. 3 (January 2012): 458a. http://dx.doi.org/10.1016/j.bpj.2011.11.2513.

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Kostic, Ana, and Michael P. Sheetz. "Fibronectin Rigidity Response through Fyn and p130Cas Recruitment to the Leading Edge." Molecular Biology of the Cell 17, no. 6 (June 2006): 2684–95. http://dx.doi.org/10.1091/mbc.e05-12-1161.

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Cell motility on extracellular matrices critically depends on matrix rigidity, which affects cell adhesion and formation of focal contacts. Receptor-like protein tyrosine phosphatase alpha (RPTPα) and the αvβ3 integrin form a rigidity-responsive complex at the leading edge. Here we show that the rigidity response through increased spreading and growth correlates with leading edge recruitment of Fyn, but not endogenous c-Src. Recruitment of Fyn requires the palmitoylation site near the N-terminus and addition of that site to c-Src enables it to support a rigidity response. In all cases, the rigidity response correlates with the recruitment of the Src family kinase to early adhesions. The stretch-activated substrate of Fyn and c-Src, p130Cas, is also required for a rigidity response and it is phosphorylated at the leading edge in a Fyn-dependent process. A possible mechanism for the fibronectin rigidity response involves force-dependent Fyn phosphorylation of p130Cas with rigidity-dependent displacement. With the greater displacement of Fyn from p130Cas on softer surfaces, there will be less phosphorylation. These studies emphasize the importance of force and nanometer-level movements in cell growth and function.
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Dissertations / Theses on the topic "Family rigidity"

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Nascimento, Arcelino Bruno Lobato do. "Sobre renormalização e rigidez quaseconforme de polinômios quadráticos." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/45/45131/tde-26112016-233103/.

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Sem dúvida a questão central em Dinâmica Holomorfa é aquela sobre a densidade de hiperbolicidade. Temos a seguinte conjectura devida a Pierre Fatou: No espaço das aplicações racionais de grau d o conjunto das aplicações racionais hiperbólicas neste espaço formam um subconjunto aberto e denso. Nem mesmo para a família dos polinômios quadráticos esta questão foi respondida. Para a família quadrática este problema é equivalente a mostrar a não existência de polinômios quadráticos que suportam sobre o seu conjunto de Julia um campo de linhas invariante. Devido a resultados de Jean-Christophe Yoccoz sabemos da não existência de campos de linhas invariante para polinômios quadráticos no máximo finitamente renormalizáveis. Nesta dissertação é mostrado que um polinômio quadrático infinitamente renormalizável satisfazendo certa hipótese geométrica, denominada robustez, não suporta sobre o seu Julia um campo de linhas invariante. Esta prova foi obtida por Curtis T. McMullen e publicada em [McM1]. Os avanços na teoria de renormalização e quanto ao problema da densidade de hiperbolicidade e problemas relacionados tem contado com a colaboração de inúmeros renomados matemáticos como Mikhail M. Lyubich, Artur Ávila, Mitsuhiro Shishikura, Curtis T. McMullen, Jean-Christophe Yoccoz, Sebastien van Strien, Hiroyuki Inou, dentre outros
Undoubtedly one of the central open questions in Holomorphic Dynamics is about proving the density of hyperbolicity. That question was first raised by Pierre Fatou: In the space of rational functions of degree d the set of hyperbolic rational functions form a open and dense subset. Not even for the family of quadratic polynomials this question been answered. For this particular quadratic family the problem is equivalent to showing the non-existence of quadratic polynomial with a Julia set supporting an invariant line field. Due to results by Jean-Christophe Yoccoz we already know the non-existence of invariant line fields for the quadratic polynomials that are at most finitely renormalizable. In this dissertation it is shown that an infinitely renormalizable quadratic polynomial satisfying a certain geometric hypotesis, called robustness, does not have an invariant line field supported on its Julia set. This proof was obtained by Curtis T. McMullen and published in [McM1]. Many advances on the theory of renormalization and on the problem of density of hyperbolicity have been already accomplished through the collective work of several renowned mathematicians such as Mikhail M. Lyubich, Artur Ávila, Mitsuhiro Shishikura, Curtis T. McMullen, Jean-Christophe Yoccoz, Sebastien van Strien, Hiroyuki Inou among others.
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Almeida, Ricardo Gouveia de. "Habitação colectiva para um habitar imprevisível." Master's thesis, Universidade de Lisboa, Faculdade de Arquitetura, 2017. http://hdl.handle.net/10400.5/13922.

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LE, FLOCH LAURENT. "Un probleme de rigidite pour une famille a un parametre de 1-formes holomorphes." Rennes 1, 1995. http://www.theses.fr/1995REN10007.

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Dans ce travail, on s'interesse aux singularites des germes de feuilletages holomorphes a l'origine de #2 definis par un germe de 1-forme holomorphe (x,y) =a(x,y) dx + b(x,y) dy. Dans la premiere partie, on etudie le type analytique des familles de 1-formes holomorphes # = a#(x,y) dx + b#(x,y) dy##,#v, ou v est un voisinage ouvert de 0 dans , ayant un type formel fixe. En utilisant un theoreme de rigidite pour les sous groupes non abeliens de diff(,o) du a d. Cerveau et r. Moussu (ce,mo), nous montrons que si #o est non exceptionnelle, ces familles sont a type holomorphe constant. Dans la seconde partie, on montre la genericite, au sens de la topologie de krull, de la condition est une 1-forme non exceptionnelle dans la classe des courbes generalisees. Pour cela, nous utilisons des resultats et des techniques de j. F. Matttei (ma)
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GARBA, BELKO DJIBRILLA. "Trois etudes sur les feuilletages holomorphes : cohomologie relative, rigidite en famille et probleme du centre." Rennes 1, 1998. http://www.theses.fr/1998REN10042.

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Dans la premiere partie de cette these on etablit une version analytique reelle du theoreme de synthese de lins neto. Les techniques utilisees permettent de construire un germe de feuilletage a l'origine de c#2#0, sans integrale premiere de type liouville et tel que pour tout germe d'involution antiholomorphe, generique, verifiant *$$ $$ = 0, $$#/#f# est a configuration centrale, ou f# est le germe de sous variete de c#2#0 invariant par. Dans la seconde partie en utilisant les proprietes de l'ensemble des elements tangents a l'identite des groupes de diffeomorphismes holomorphes de c#0 et un resultat de sommabilite des series satisfaisant des equations aux differences on montre qu'une 1-forme formellement relativement exacte modulo un feuilletage $$ est holomorphiquement relativement modulo ce feuilletage des que $$ est non exceptionnel. Dans la derniere partie on montre que toute famille a un parametre de 1-formes (#) formellement conjuguee a une famille constante () lui est holomorphiquement conjuguee lorsque est non exceptionnelle. Ceci generalise un resultat de le floch dans le cas semi-localement exceptionnel.
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Bah, Fousseynou. "Analyse du chomage et bilan des politiques de l'emploi au Mali." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00817218.

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L'objectif de cette thèse est de contribuer à une meilleure connaissance du marché du travail dans les économies en développement à dominante informelle. Le Mali est son cas d'étude. Dans la première partie, elle met en évidence la difficulté de comprendre le chômage au travers du statut ambigu des actifs de l'informel, oscillant entre le chômage et l'emploi. Nous y montrons que l'économie informelle exacerbe l'instabilité des frontières du chômage sans toutefois aliéner la rigidité des revenus salariaux à la baisse. A l'aide d'une courbe du salaire, nous appréhendons cette dernière et présentons ses causes. La seconde partie de la thèse pr'esente les dispositifs en matière d'emploi et montre que si, d'un côté, ils répondent pour une large part aux besoins du marché du travail et visent à corriger ses principales insuffisances - notamment en matière de financement et de formation -, de l'autre, leur mise en oeuvre se révèle profondément défaillante. Ceci explique les résultats mitigés de certaines mesures malgré plus de deux décennies d'application. Dans la troisième partie, l'attention est tournée vers l'offre de travail, à la faible connaissance de laquelle on peut attribuer une partie des échecs des dispositifs d'emploi. Nous y examinons le rôle de l'environnement familial dans la participation au marché du travail et dans la prospection d'emploi et montrons que plusieurs variables de cet espace peuvent contribuer à la formulation de meilleurs dispositifs
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Books on the topic "Family rigidity"

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Khafājī, Fāṭimah Aḥmad. Fī al-ṣiḥḥah al-nafsīyah: Al-murūnah, al-taṣallub lil-ʻāmilāt wa-li-ghayr al-ʻāmilāt. Iskandarīyah: Dār al-Maʻrifah al-Jāmiʻīyah, 1990.

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Khafājī, Fāṭimah Aḥmad. Fī al-ṣiḥḥah al-nafsīyah: Al-murūnah, al-taṣallub lil-ʻāmilāt wa-li-ghayr al-ʻāmilāt. Iskandarīyah: Dār al-Maʻrifah al-Jāmiʻīyah, 1990.

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Drell, Joanna. Aristocratic Economies. Edited by Judith Bennett and Ruth Karras. Oxford University Press, 2013. http://dx.doi.org/10.1093/oxfordhb/9780199582174.013.001.

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This essay examines the economic activities and "work" of aristocratic women, c.1000–c.1400. Despite the limitations posed by law, custom, and social expectation, women played a central role in preserving and transferring family wealth through marriage, gifts, and inheritance. They were equally crucial in matters of household and estate management. Both older and recent scholarship explores the complexity of the woman's experience within the European family. Her role was neither rigidly static nor in perpetual flux. The diversity of a woman's economic responsibilities and her influence in the family reveal the inherent flexibility of the medieval family, once considered staunchly patriarchal. While some have argued that the patrilineal descent group was narrowing in this period, medieval families devised strategies to preserve the integrity of their holdings and to provide for a range of kin, regardless of gender.
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Fletcher, Nicholas. Movement disorders. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780198569381.003.0926.

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Almost any neurological disorder can produce a disorder of movement but the ‘movement disorders’ include the akinetic rigid syndromes, hyperkinesias, and some tremors. It can sometimes seem, especially with the use of videotape recordings, that diagnosis of movement disorders is mainly a matter of correct visual recognition. Such an approach is not recommended and can lead to mistakes unless, as in other areas of medicine, the history is considered first and the physical signs second. Obvious examples include the family history in Huntington’s disease, developmental history in dystonic cerebral palsy, and neuroleptic drug treatment in patients with tardive dyskinesia. In addition, a single disorder may give rise to several different types of involuntary movement. For example, Huntington’s disease may give rise to an akinetic rigid state, chorea, myoclonus, tics, or dystonia. Patients with Parkinson’s disease taking levodopa may show different types of movement disorder at different times of the day.In akinetic rigid states the diagnostic issue will be whether the patient has idiopathic Parkinson’s disease or one of the other Parkinsonian syndromes. With involuntary movements, the first step in diagnosis is to classify these as dystonia, tics, tremor, chorea, or myoclonus. It must be remembered that involuntary movements are merely physical signs, not diagnostic entities, and that they do not always occur in a pure form; for example, patients with dystonia may have additional choreiform movements or tremor. If more than one form of abnormal movement seems to be present, the diagnosis should be based on the most obvious one. The next step is to decide on the cause of the movements and at this stage the diagnosis must be based upon an accurate and complete history as noted above.The movement disorders are often associated with abnormalities of the basal ganglia and, to some extent, vice versa. This is not entirely correct. Disturbances of basal ganglia function certainly have profound effects on movement with the development of bradykinesia, rigidity, tremor, or the various forms of dyskinesia. However, it is not correct when considering the pathophysiology of movement disorders to regard the basal ganglia as an isolated movement control centre. In fact, they are an important but poorly understood component of a much wider motor system. It is also important to remember that the basal ganglia are involved in the processing of limbic and other cognitive processes which may also be disturbed by basal ganglia dysfunction.
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Book chapters on the topic "Family rigidity"

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Florack, Luc, Rick Sengers, Stephan Meesters, Lars Smolders, and Andrea Fuster. "Riemann-DTI Geodesic Tractography Revisited." In Mathematics and Visualization, 225–43. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-56215-1_11.

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AbstractClinical tractography is a challenging problem in diffusion tensor imaging (DTI) due to persistent validation issues. Geodesic tractography, based on a shortest path principle, is conceptually appealing, but has not produced convincing results so far. A major weakness is its rigidity with respect to candidate tracts it is capable of producing given a pair of endpoints, showing a tendency to produce false positives (such as shortcuts) and false negatives (e.g. if a shortcut supplants the correct solution). We propose a new geodesic paradigm that appears to overcome these problems, making a step towards semi-automatic clinical use. To this end we couple the DTI tensor field to a family of Riemannian metrics, governed by control parameters. In practice these parameters may allow for edits by an expert through manual selection among multiple tract suggestions, or for bringing in a priori knowledge. In this paper, however, we consider an automatic, evidence-driven procedure to determine optimal controls and corresponding tentative tracts, and illustrate the role of edits to remediate erroneous defaults.
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Pengelly, Andrew. "Polysaccharides." In The constituents of medicinal plants, 147–67. 3rd ed. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789243079.0009.

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Abstract Polysaccharides are universal in the plant and fungal kingdoms. Their functions include food storage, protection of membranes, and maintaining rigidity of cell walls in plants and fungi, whereas for seaweeds they help maintain the flexibility required for life in the ocean. Polysaccharides play significant roles in the activity of numerous herbs used in traditional Chinese medicine and Japanese (Kampo) medicine. Polysaccharides are insoluble in organic solvents; they precipitate in alcohol. Herbal tinctures, which are made using alcoholic solvents of 45% strength or higher, are therefore of little use for polysaccharide extraction. The degree of water solubility depends on the polysaccharide structure. Linear polymers (mucilages) are less water soluble and tend to precipitate at high temperatures and form viscous or slimy solutions. Branched polymers (gums) are more water soluble and form gels, often referred to as 'gummy' or 'sticky'. Examples of carbohydrate polymers and their sources and significance to plants and humans are shown in this chapter. Tabulated data are also given on selected medicinal mushrooms, their polysaccharides and therapeutic uses, as well as on inulin-containing species of herbs from the Asteraceae family.
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Hall-Matthews, David. "Land Revenue Rigidity, Revisions and Non-remission." In Peasants, Famine and the State in Colonial Western India, 128–67. London: Palgrave Macmillan UK, 2005. http://dx.doi.org/10.1057/9780230510517_5.

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"On family rigidity theorems for Spin^{𝑐} manifolds." In Mirror Symmetry IV, 343–60. Providence, Rhode Island: American Mathematical Society, 2003. http://dx.doi.org/10.1090/amsip/033/23.

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Clark, Robin D., and Cynthia J. Curry. "Clubfoot." In Genetic Consultations in the Newborn, edited by Robin D. Clark and Cynthia J. Curry, 197–202. Oxford University Press, 2019. http://dx.doi.org/10.1093/med/9780199990993.003.0029.

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This chapter reviews background information about the incidence, sex ratio, risk factors, including CVS and early amniocentesis, family history, consanguinity, genetics, recurrence risk, and epidemiology of clubfoot. The distinctive rigidity of clubfoot is compared with the more common position anomalies of the foot (metatarsus adductus) and congenital vertical talus. The discussion on the differential diagnosis of clubfoot summarizes its common causes, including teratogenic agents, chromosome anomalies, including copy number variants, and Mendelian disorders that involve associated malformations in the neuromuscular, skeletal, and connective tissue systems, and it gives recommendations for evaluation and management. A clinical case presentation features an infant with Loeys–Dietz syndrome.
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Lapuente, Sergio Cámara. "Forced Heirship in Spain." In Comparative Succession Law, 139–74. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198850397.003.0006.

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The provisions on succession law in the Spanish Civil Code have been little amended since the enactment of the Code in 1889. At first sight they seem rather restrictive towards freedom of testation, both because of the number of possible forced heirs, and because of the substantial part of the estate to which they are entitled. However, from the outset the Civil Code contained mechanisms, such as the mejora (‘betterment’), which make this result more flexible. Later reforms have added other ways of escaping this rigidity, such as the possibility of paying the legítima in money, or confirmation that the ‘forced heir’ does not need to receive his share in the capacity of heir. This chapter explains the historical evolution during more than a millennium in which Roman and Germanic influences merged to give birth, in the nineteenth century, to an original system designed to protect the family and the intergenerational transmission of wealth based on family models. The latter have changed in modern times, with society now prioritizing emotional ties over those of pure kinship. The chapter reviews the arguments for and against the forced heirship and reports on the lively reformist debate that exists in Spain. It also highlights the extensive use in practice of certain testamentary clauses that guarantee greater freedom of testation (such as the cautela Socini) and explains the evolution of a new jurisprudence since 2014 that favours a broad interpretation of disinheritance due to emotional abuse.
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Fink MD, Max. "Movement Disorders." In Electroconvulsive Therapy. Oxford University Press, 2010. http://dx.doi.org/10.1093/oso/9780195365740.003.0011.

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Patients with mental disorders exhibit a range of abnormal movements. The severely depressed are given to hand wringing, pacing, and restlessness. Others lie in bed, stare into space, and posture for hours or days. At times, this behavior is so extreme as to be a stupor. Psychotic patients exhibit tremors or peculiar facial and body movements described as parkinsonism, dystonia, or dyskinesia. Manic patients are in constant motion. Children and adolescents bang their heads and pick at their skin, injuring themselves. Little attention is paid to such behavior unless it overwhelms the patient’s life, but it does distress the patient, the family, and the community. These motor symptoms often bring psychiatric patients to medical care. Catatonia is the motor syndrome characterized by muscular rigidity, unusual posturing, negativism (refusal to obey simple commands), mutism (persistent silence), echolalia (repetition of what has been said), echopraxia (imitation of movements), and repeated stereotyped mannerisms. It appears suddenly and quickly immobilizes the patient or it appears insidiously. When it dominates behavior and threatens the patient’s life by the failure to eat or drink, treatment becomes compulsory. Forced feeding, bedsores resulting from immobility, muscular atrophy, bladder catheterization and consequent infection, and blood clots in immobilized limbs all take a terrible toll. If the clots move to the lungs or brain, stroke or death may ensue. Catatonia was first described as a consequence of intense emotional anguish and tension. Although the movements frequently respond to sedative drugs, ECT is a more complete and effective treatment. The condition is frequently seen in patients with affective illnesses— both depression and mania—in patients with systemic disorders, and in those with toxic brain states caused by hallucinogenic drugs. For decades, the prevailing belief in psychiatry was that each instance of catatonia represented a type of schizophrenia. The major classification systems in psychiatry—the Diagnostic and Statistical Manual of the American Psychiatric Association and the International Classification of Diseases—assigned to all patients with catatonia the diagnosis of schizophrenia, catatonic type. As a consequence, few patients were treated with anticonvulsant sedatives or with ECT, because those treatments were not recognized as effective in schizophrenia.
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McKnight, Rebecca, Jonathan Price, and John Geddes. "Psychiatry of older adults." In Psychiatry. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198754008.003.0025.

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The provision of mental health services for older adults faces two main challenges: … 1 The world population is ageing, leading to increased numbers of elderly patients (Fig. 18.1). 2 These patients are more likely to present with multiple, complex co- morbidities which must be managed alongside acute or chronic psychiatric problems…. To provide effective care, services must combine treatment for mental, physical, and social needs of older people. The multidisciplinary team is key to delivering this, often in specialized environments such as a day centre programme. A huge number of physical, psychological, and social changes occur within the normal process of ageing. A basic understanding of these is necessary in order to identify those individuals in whom there is path­ology. Covering theories behind the ageing process is outside the scope of this text, but some references are given on p. 220. The following changes are seen in the brain during normal ageing: … ● The weight of the brain decreases by 5– 20 per cent between 70 and 90 years, with a compensatory increase in ventricular size. ● There is neuronal loss, especially in the hippocampus, cortex, substantia nigra, and cerebellum. ● Senile plaques are found in the neocortex, amygdala, and hippocampus. ● Tau proteins form neurofibrillary tangles, found normally only in the hippocampus. ● Lewy bodies are seen in the substantia nigra. ● Ischaemic lesions (reduced blood flow, lacunar infarcts) are seen in 50 per cent of normal people over 65 years…. From mid life there is a decline in intellectual func­tions, as measured with standard intelligence tests, together with deterioration of short- term memory and slowness. IQ peaks at about 25 years, remains stable until 60– 70 years, and then declines. Problem- solving reduces after about age 60. There may be alterations in personality and attitudes, such as increasing cautiousness, rigidity, and ‘disengagement’ from the outside world. Later life presents a series of major changes. Many individuals retire, lose partners, lose their physical health, and are forced to live on much lower incomes and in poorer- quality housing than younger people. These are difficult transitions which may predispose to mental illness. The majority of older people remain living at home: half with a partner, and 10 per cent with other family members. Those who live alone may be­come isolated and lonely.
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Grose, Timothy. "The Disappointing Road Home." In Negotiating Inseparability in China, 90–110. Hong Kong University Press, 2019. http://dx.doi.org/10.5790/hongkong/9789888528097.003.0005.

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Chapter Four follows Xinjiang Class graduates’ return to Xinjiang. Contrary to the political goals of the program, few of its graduates return to the region with the intention of serving the Party. More often, institutional restraints that cripple mobility in China, unrelenting pressure from family members, and inconveniences adhering to Islamic practices in inner China compel these individuals to return. The return, however, only marks the beginning of a sometimes frustrating process of reintegration. The second part of this chapter describes how these young adults reacclimate to daily life in Xinjiang. Uyghurs Xinjiang Class graduates often feel marginalized upon returning, but re-establish a genuine sense of belonging after a period of readjustment. However, my female informants, who are often expected to conform to rigidly defined gender roles, tend to find this readjustment process more discouraging than men.
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Canny, Nicholas. "Re-Imagining Ireland’s Early Modern Past during the Later Nineteenth Century." In Imagining Ireland's Pasts, 257–90. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198808961.003.0009.

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The Great Famine provided a stimulus to the writing of history, not least because it eroded the credibility both of British rule in Ireland, and of Irish landowners. The new interpretations can be characterized as follows. The authors of a Catholic narrative wanted the Catholic nation that had emerged from suffering to be treated as an equal with the English and Scottish nations within a shared British monarchy. Militant nationalist historians cherished memories of Catholic sufferings in the hope that these would foment popular ‘disaffection’ and further revolutionary action. Moderate Unionist historians acknowledged the unjust treatment of the Irish in the past and detailed this to encourage the present government to promote reform that would elicit loyalty. Hard-line Unionist historians also faulted past British rule. Their concern, however, was that governments had not stuck rigidly to stern measures that would have produced stability. They believed that stability might still be achieved if the present government avoided conciliation.
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Conference papers on the topic "Family rigidity"

1

Muder, Sean, Robert Haynes, and Erian Armanios. "Analysis of the Extension-Twist Coupling in Hygrothermally Stable Star Beam Composites." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65318.

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An approximate analytical model is utilized to examine the extension-twist coupling and torsional stiffness properties of star beams constructed with a new family of hygrothermally stable optimized stacking sequences. The relationship between axial force and the twist rate is used to quantify the results. The results show that there is a decrease in torsional rigidity corresponding to an increase in extension-twist coupling. The new stacking sequences allow for the addition of more substrips while maintaining comparable levels of extension-twist coupling with beams constructed from prior benchmark layups. This results in higher levels of torsional stiffness for comparable levels of extension-twist coupling in star beams made of the new optimized stacking sequences.
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Manzo, Justin E., and Ephrahim Garcia. "The Smart Joint: Model and Optimization of a Shape Memory Alloy/Shape Memory Polymer Composite Actuator." In ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2008. http://dx.doi.org/10.1115/smasis2008-611.

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The Smart Joint, developed at Cornell University, is a composite device which functions as both a structural element and shape changing mechanism. Through resistive heating, the device will provide a tip deflection on the order of 5–20% of its undeflected length, with a high specific work capability. The joint possesses sufficient stiffness to function as a load-carrying element on a structure, inspired by the need to consume minimal energy through passive rigidity. An overview of Smart Joint operation is provided, followed by an improved model encompassing embedded actuators, applicable to many strain actuation systems. Previous work has developed a model that describes the shape change capability of the joint as a function of composition and layering structure, and the revised model is an extension of that work, agreeing well with finite element analysis. Benchmarking is conducted through a heuristic optimization study, providing a framework for selecting joint structure to match desired application by joint composition family. Implementation on a bat-like morphing wing is proposed that uses the Smart Joints as self-actuated hinge structures along the skeleton, capable of providing increased wing camber and tip deflections while in flight.
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Gopalakrishnan, Venkat, and Sridhar Kota. "A Parallely Actuated Work Support Module for Reconfigurable Machining Systems." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/mech-5959.

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Abstract In order to respond quickly to changes in market demands and the resulting product design changes, machine tool manufacturers must reduce the machine tool design lead time and machine set-up time. Reconfigurable Machine Tools (RMTs), assembled from machine modules such as spindles, slides and worktables are designed to be easily reconfigured to accommodate new machining requirements. The essential characteristics of RMTs are modularity, flexibility, convertibility and cost effectiveness. The goal of Reconfigurable Machining Systems (RMSs), composed of RMTs and other types of machines, is to provide exactly the capacity and functionality, exactly when needed. The scope of RMSs design includes mechanical hardware, control systems, process planning and tooling. One of the key challenges in the mechanical design of reconfigurable machine tools is to achieve the desired machining accuracy in all intended machine configurations. To meet this challenge we propose (a) to distribute the total number of degrees of freedom between the work-support and the tool and (b) employ parallely-actuated mechanisms for stiffness and ease of reconfigurability. In this paper we present a novel parallely-actuated work-support module as a part of an RMT. Following a brief summary of a few parallel mechanisms used in machine tool applications, this paper presents a three-degree-of-freedom work-support module designed to meet the machining requirements of specific features on a family of automotive cylinder heads. Inverse kinematics, dynamic and finite element analysis are performed to verify the performance criteria such as workspace envelope and rigidity. A prototype of the proposed module is also presented.
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4

Lang, Robert J., Spencer Magleby, and Larry Howell. "Single-Degree-of-Freedom Rigidly Foldable Origami Flashers." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-46961.

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We present the design for a family of deployable structures based on the origami flasher that are rigidly foldable, i.e., foldable with revolute joints at the hinges and planar rigid faces, and that exhibit a single degree of freedom in their motion. These structures may be used to realize highly compact deployable mechanisms.
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5

Tachi, Tomohiro. "Designing Rigidly Foldable Horns Using Bricard’s Octahedron." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-46283.

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This paper proposes a design method to obtain a family of rigidly foldable structures with one degree of freedom. The mechanism of flat-foldable degree-four cones and mutually compatible cones sharing a boundary are interpreted as the mechanism of Bricard’s flexible octahedra. By sequentially concatenating compatible cones, one can design horn-shaped rigid-origami mechanisms. This paper presents a method to inversely obtain rigidly foldable horns that follow given space curves. The resulting rigidly foldable horns can be used as building blocks for a transformable cellular structure and attachments to existing rigidly foldable structures.
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Lang, Robert J., Nathan Brown, Brian Ignaut, Spencer Magleby, and Larry Howell. "Rigidly Foldable Thick Origami Using Designed-Offset Linkages." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97621.

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Abstract We present new families of thick origami mechanisms that achieve rigid foldability and parallel stacking of panels in the flat-folded state using linkages for some or all of the hinges between panels. A degree-four vertex results in a multi-loop eight-bar spatial mechanism that can be analyzed as separate linkages. The individual linkages are designed so that they introduce offsets perpendicular to the panels that are mutually compatible around each vertex. This family of mechanisms offers the unique combination of a planar unfolded state, parallel-stacked panels in the flat folded state, and kinematic single-degree-of-freedom motion from the flat-unfolded to the flat-folded state.
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7

Davis, Eli, Erik D. Demaine, Martin L. Demaine, and Jennifer Ramseyer. "Reconstructing David Huffman’s Origami Tessellations." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12710.

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David A. Huffman (1925–1999) is best known in computer science for his work in information theory, particularly Huffman codes, and best known in origami as a pioneer of curved-crease folding. But during his early paper folding in the 1970s, he designed and folded over a hundred different straight-crease origami tessellations. Unlike most origami tessellations designed in the past twenty years, Huffman’s straight-crease tessellations are mostly three-dimensional, rigidly foldable, and have no locking mechanism. In collaboration with Huffman’s family, our goal is to document all of his designs by reverse-engineering his models into the corresponding crease patterns, or in some cases, matching his models with his sketches of crease patterns. Here we describe several of Huffman’s origami tessellations that are most interesting historically, mathematically, and artistically.
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