Journal articles: 'Family rigidity'

1

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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Querbach, Stephanie, Nadine Kammerlander, and Jagdip Singh. "Pragmatic Learning in Family SMEs: A Qualitative Study of Role Rigidity." Academy of Management Proceedings 2019, no. 1 (August 1, 2019): 10761. http://dx.doi.org/10.5465/ambpp.2019.10761abstract.

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GUERRINI, LUCA. "FORMAL AND ANALYTIC RIGIDITY OF THE WITH ALGEBRA." Reviews in Mathematical Physics 11, no. 03 (March 1999): 303–20. http://dx.doi.org/10.1142/s0129055x99000118.

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A family of deformations [Formula: see text] of the Witt algebra [Formula: see text] parametrized by the space ℰ of even polynomials with vanishing constant terms is defined. The existence of an isomorphism [Formula: see text], where [Formula: see text] refers to suitable completions of [Formula: see text], is proved. A relation between [Formula: see text] and Krichever–Novikov algebras of genus 0 and 1 is given.

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Liu, De-Xuan, Kai-Ping Xie, Wei-Xiong Zhang, Ming-Hua Zeng, and Xiao-Ming Chen. "Structural insights into a new family of three-dimensional thiocyanate-bridged molecular double perovskites." CrystEngComm 23, no. 11 (2021): 2208–14. http://dx.doi.org/10.1039/d1ce00147g.

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Four new three-dimensional thiocyanate-bridged molecular double perovskites with bent Cd–S–C angles in a narrow distribution range reveal highly distorted frameworks with a relatively strong structural rigidity.

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Szőke, Róbert. "A family of Kähler-Einstein manifolds and metric rigidity of Grauert tubes." Proceedings of the American Mathematical Society 129, no. 10 (April 24, 2001): 2913–17. http://dx.doi.org/10.1090/s0002-9939-01-06182-2.

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Carris, Melissa J., Lisa Sheeber, and Steven Howe. "Family rigidity, adolescent problem-solving deficits, and suicidal ideation: a mediational model." Journal of Adolescence 21, no. 4 (August 1998): 459–72. http://dx.doi.org/10.1006/jado.1998.0170.

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Houdayer, Cyril, and Yoshimichi Ueda. "Rigidity of free product von Neumann algebras." Compositio Mathematica 152, no. 12 (November 17, 2016): 2461–92. http://dx.doi.org/10.1112/s0010437x16007673.

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Let $I$ be any nonempty set and let $(M_{i},\unicode[STIX]{x1D711}_{i})_{i\in I}$ be any family of nonamenable factors, endowed with arbitrary faithful normal states, that belong to a large class ${\mathcal{C}}_{\text{anti}\text{-}\text{free}}$ of (possibly type $\text{III}$) von Neumann algebras including all nonprime factors, all nonfull factors and all factors possessing Cartan subalgebras. For the free product $(M,\unicode[STIX]{x1D711})=\ast _{i\in I}(M_{i},\unicode[STIX]{x1D711}_{i})$, we show that the free product von Neumann algebra $M$ retains the cardinality $|I|$ and each nonamenable factor $M_{i}$ up to stably inner conjugacy, after permutation of the indices. Our main theorem unifies all previous Kurosh-type rigidity results for free product type $\text{II}_{1}$ factors and is new for free product type $\text{III}$ factors. It moreover provides new rigidity phenomena for type $\text{III}$ factors.

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Sirmon, David G., Jean–Luc Arregle, Michael A. Hitt, and Justin W. Webb. "The Role of Family Influence in Firms’ Strategic Responses to Threat of Imitation." Entrepreneurship Theory and Practice 32, no. 6 (November 2008): 979–98. http://dx.doi.org/10.1111/j.1540-6520.2008.00267.x.

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We integrate theory on the resource–based view and threat rigidity with family business research to explain the role family influence plays in responding to threats of imitation. As opposed to family control, we find that family influence affects resource management actions taken in response to threats of imitation. Specifically, results show that R&D investment and internationalization actions mediate the relationship between imitability and performance. However, we find that family–influenced firms are less rigid in their responses to such threats, reducing R&D and internationalization significantly less than firms without family influence.

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Thakuria, Ranjit, Naba K. Nath, Saikat Roy, and Ashwini Nangia. "Polymorphism and isostructurality in sulfonylhydrazones." CrystEngComm 16, no. 22 (2014): 4681–90. http://dx.doi.org/10.1039/c3ce42301h.

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Five new methyl and halogen derivatives of triaryl sulfonylhydrazone were synthesized to understand polymorphism and isostructurality upon Cl–Me and inter-halogen exchange. Conformational rigidity and sulfonamide dimer synthon control the isostructurality in this family of crystal structures.

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19

YANG, JONGUK. "Renormalization in the golden-mean semi-Siegel Hénon family: universality and non-rigidity." Ergodic Theory and Dynamical Systems 40, no. 4 (September 25, 2018): 1108–52. http://dx.doi.org/10.1017/etds.2018.83.

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It was recently shown in Gaidashev and Yampolsky [Golden mean Siegel disk universality and renormalization. Preprint, 2016, arXiv:1604.00717] that appropriately defined renormalizations of a sufficiently dissipative golden-mean semi-Siegel Hénon map converge super-exponentially fast to a one-dimensional renormalization fixed point. In this paper, we show that the asymptotic two-dimensional form of these renormalizations is universal and is parameterized by the average Jacobian. This is similar to the limit behavior of period-doubling renormalizations in the Hénon family considered in de Carvalho et al [Renormalization in the Hénon family, I: universality but non-rigidity. J. Stat. Phys.121 (5/6) (2006), 611–669]. As an application of our result, we prove that the boundary of the golden-mean Siegel disk of a dissipative Hénon map is non-smoothly rigid.

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20

Weiguo, Zhang. "Implementation of State Family Planning Programmes in a Northern Chinese Village." China Quarterly 157 (March 1999): 202–30. http://dx.doi.org/10.1017/s030574100004025x.

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Many studies link family planning programmes to the extensive structure of government control in China. Some emphasize the determining role played by government control in Chinese family planning programmes, and some debate its consequences for human well-being, finding it either negative or positive or mixed. The rigidity of Chinese family planning programmes has been controversial both in China and around the world. There are however very few studies, which consider in detail how family planning policies are formulated and implemented at thelocallevel, under a particular, concrete, social, economic and cultural context.

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21

Bianchi, Dora, Mara Morelli, Roberto Baiocco, Elena Cattelino, Fiorenzo Laghi, and Antonio Chirumbolo. "Family functioning patterns predict teenage girls’ sexting." International Journal of Behavioral Development 43, no. 6 (September 11, 2019): 507–14. http://dx.doi.org/10.1177/0165025419873037.

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Online exchange of sexual content (“sexting”) is associated with potentially negative consequences, especially for girls. We investigated possible associations between family functioning and girls’ sexting. Italian teenage girls ( N = 250; Mage = 16.36 years; SDage = 1.88) completed online surveys that evaluated family functioning (communication, flexibility, cohesion, disengagement, chaos, enmeshment, and rigidity) and five sexting behaviors: (a) engaging in sexting, (b) sexting with a partner, (c) number of people with whom girls share sexts, (d) nonconsensual forwarding of sexts, and (e) sexting for emotion regulation. We found that engaging in sexting, sexting for emotion regulation, and the number of people with whom girls share sexts were predicted by age and low family communication. Sexting with a partner was predicted by age and high flexibility, and nonconsensual forwarding of sexts was positively predicted by enmeshment.

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Mousoulidou, Marilena, Marios Argyrides, and Maria Ioannou. "Effects of family dynamics on disordered eating patterns and behaviors: Evidence from Cyprus." European Journal of Counselling Psychology 8, no. 1 (January 13, 2020): 64–77. http://dx.doi.org/10.5964/ejcop.v8i1.181.

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The current study aimed a) to examine family dynamics in Cyprus and possible influences on disordered eating patterns and behaviors, b) to assess the relationships between the quality of family dynamics and unhealthy eating practices, and c) to reinvestigate the already established relationship between dieting and problematic eating patterns and behaviors. The sample consisted of 109 females between 18 and 30 years old. The majority of the female participants reported that their families are cohesive and flexible, have low levels of disengagement, enmeshment, rigidity and chaos and high levels of communication with most aspects of their families. However, family satisfaction did not provide clear results. Furthermore, results also indicated a positive relationship between rigidity in families and the measures of eating disturbances. Additionally, and as expected, the results were consistent with the well-known assertion that dieting contributes to the development of disordered eating patterns and behaviors. The current findings offer important additional information to the disordered eating literature of females in Cyprus by providing information of how family dynamics can influence the development of problematic eating patterns and behaviors. The current study supports the need for the implementation of preventive and intervention plans to Cypriot young females and their families which promote healthy eating behaviors.

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Nicas, Andrew J. "An infinite family of non-Haken hyperbolic 3-manifolds with vanishing Whitehead groups." Mathematical Proceedings of the Cambridge Philosophical Society 99, no. 2 (March 1986): 239–46. http://dx.doi.org/10.1017/s030500410006415x.

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A manifold M is said to be aspherical if its universal covering space is contractible. Farrell and Hsiang have conjectured [3]:Conjecture A. (Topological rigidity of aspherical manifolds.) Any homotopy equivalence f: N → M between closed aspherical manifolds is homotopic to a homeomorphism,and its analogue in algebraic K-theory:Conjecture B. The Whitehead groups Whj(π1M)(j ≥ 0) of the fundamental group of a closed aspherical manifold M vanish.

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Azarova, Elena, Maria Vyshkvyrkina, Dmitriy Vorontsov, Elena Zinchenko, and Ekaterina Nemilova. "Cognitive Rigidity in Adolescence with a Tendency to Autoregressive Behavior Model." E3S Web of Conferences 258 (2021): 07074. http://dx.doi.org/10.1051/e3sconf/202125807074.

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The history of studying autoaggressive behavior model and cognitive rigidity is quite extensive and diverse. Nevertheless, the relevance of studying the problem of autoaggression among adolescents has increased significantly in recent decades. Self-harming and self-destructive behavior has become a fashion trend among the younger generation. The aim of the research is studying of features cognitive rigidity in adolescence with a tendency to autoregressive behavior model. the study involved 65 students of secondary school aged 14-15 years (M=14,4; SD=0,8). The following methods were used: «Tendencies to deviant behavior» (A.N. Orel), The Stroop Color and Word Test, besides statistical techniques (descriptive statistics, Mann Whitney U test, Spearman rank correlation coefficient). As the result of the research it was proved that adolescents who are prone to autoaggressive behavior model, the level of cognitive rigidity is higher, in comparison with adolescents who are not inclined to self-destructive behavior. There was also discovered a positive relationship between the degree of propensity for autoaggressive behavior model and the level of cognitive rigidity. The prospects of the research cover the study of the personal characteristics of children and parents, the styles of family education that contribute to the formation and development of cognitive rigidity, the tendency to auto-aggressive behavior. The results of the research can be used in the organization of psychological and pedagogical support of adolescents and their families.

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Laghi, Fiorenzo, Sara Pompili, Valeria Zanna, Maria Chiara Castiglioni, Michela Criscuolo, Ilenia Chianello, Silvia Mazzoni, and Roberto Baiocco. "How adolescents with anorexia nervosa and their parents perceive family functioning?" Journal of Health Psychology 22, no. 2 (July 10, 2016): 197–207. http://dx.doi.org/10.1177/1359105315597055.

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This study aims at examining whether adolescent girls diagnosed with anorexia nervosa and their parents differ in perceiving the different aspects of family functioning. Moreover, the discrepancy between adolescent girls and healthy controls on Family Adaptability and Cohesion Evaluation Scales dimensions, family communication, and family satisfaction is investigated. The study includes 36 female anorexia patients and their parents and 36 healthy controls. The results showed a different view between mothers and their daughters with regard to the dimension of rigidity. In addition, girls with anorexia nervosa were less satisfied about family environment and rated their families as less communicative, flexible, cohesive, and more disengaged, compared to controls.

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Kato, Tsuyoshi, Hokuto Konno, and Nobuhiro Nakamura. "Rigidity of the mod 2 families Seiberg–Witten invariants and topology of families of spin 4-manifolds." Compositio Mathematica 157, no. 4 (April 2021): 770–808. http://dx.doi.org/10.1112/s0010437x2000771x.

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We show a rigidity theorem for the Seiberg–Witten invariants mod 2 for families of spin 4-manifolds. A mechanism of this rigidity theorem also gives a family version of 10/8-type inequality. As an application, we prove the existence of non-smoothable topological families of 4-manifolds whose fiber, base space, and total space are smoothable as manifolds. These non-smoothable topological families provide new examples of $4$ -manifolds $M$ for which the inclusion maps $\operatorname {Diff}(M) \hookrightarrow \operatorname {Homeo}(M)$ are not weak homotopy equivalences. We shall also give a new series of non-smoothable topological actions on some spin $4$ -manifolds.

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HAZARD, P. E. "Hénon-like maps with arbitrary stationary combinatorics." Ergodic Theory and Dynamical Systems 31, no. 5 (March 9, 2011): 1391–443. http://dx.doi.org/10.1017/s0143385710000398.

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AbstractWe extend the renormalization operator introduced in [A. de Carvalho, M. Martens and M. Lyubich. Renormalization in the Hénon family, I: universality but non-rigidity. J. Stat. Phys.121(5/6) (2005), 611–669] from period-doubling Hénon-like maps to Hénon-like maps with arbitrary stationary combinatorics. We show that the renormalization picture also holds in this case if the maps are taken to be strongly dissipative. We study infinitely renormalizable maps F and show that they have an invariant Cantor set 𝒪 on which F acts like a p-adic adding machine for some p>1. We then show, as for the period-doubling case in the work of de Carvalho, Martens and Lyubich [Renormalization in the Hénon family, I: universality but non-rigidity. J. Stat. Phys.121(5/6) (2005), 611–669], that the sequence of renormalizations has a universal form, but that the invariant Cantor set 𝒪 is non-rigid. We also show that 𝒪 cannot possess a continuous invariant line field.

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Jacquot de Rouville, Henri-Pierre, Guillaume Vives, and Gwénaël Rapenne. "A family of electron-triggered molecular motors based on aromatic building blocks." Pure and Applied Chemistry 80, no. 3 (January 1, 2008): 659–67. http://dx.doi.org/10.1351/pac200880030659.

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We present our strategy to control the rotation in a molecular rotary motor and the synthesis of a family of ruthenium complexes designed to perform such a task. The molecules have a piano-stool structure with a "stator" meant to be grafted on an oxide surface, and a "rotor" bearing redox-active ferrocene groups, so that addressing the molecule with nanoelectrodes would trigger rotation. The rigidity of the structure is allowed by the use of aromatic building blocks both in the stator and in the rotor fragments.

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Foster, C. G., and S. Krishnakumar. "A Class of Transportable Demountable Structures." International Journal of Space Structures 2, no. 3 (September 1987): 129–37. http://dx.doi.org/10.1177/026635118700200301.

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A family of foldable, portable structures is described which is based on the Yoshimura buckle pattern for axially compressed cylindrical shells. Triangular panels are joined to form a structure which has considerable shape flexibility but rigidity when erected. By suitable arrangement of panels, structures with large clear spans are possible.

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DE FARIA, EDSON. "Asymptotic rigidity of scaling ratios for critical circle mappings." Ergodic Theory and Dynamical Systems 19, no. 4 (August 1999): 995–1035. http://dx.doi.org/10.1017/s0143385799133959.

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Let $f$ be a smooth homeomorphism of the circle having one cubic-exponent critical point and irrational rotation number of bounded combinatorial type. Using certain pull-back and quasiconformal surgical techniques, we prove that the scaling ratios of $f$ about the critical point are asymptotically independent of $f$. This settles in particular the golden mean universality conjecture. We introduce the notion of a holomorphic commuting pair, a complex dynamical system that, in the analytic case, represents an extension of $f$ to the complex plane and behaves somewhat as a quadratic-like mapping. We define a suitable renormalization operator that acts on such objects. Through careful analysis of the family of entire mappings given by $z\mapsto z+\theta -(1/2\pi)\sin{2\pi z}$, $\theta$ real, we construct examples of holomorphic commuting pairs, from which certain necessary limit set pre-rigidity results are extracted. The rigidity problem for $f$ is thereby reduced to one of renormalization convergence. We handle this last problem by means of Teichmüller extremal methods made available through the recent work of Sullivan on Riemann surface laminations and renormalization of unimodal mappings.

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Caso, Alessia, Germana Esposito, Gerardo Della Sala, Joseph R. Pawlik, Roberta Teta, Alfonso Mangoni, and Valeria Costantino. "Fast Detection of Two Smenamide Family Members Using Molecular Networking." Marine Drugs 17, no. 11 (October 30, 2019): 618. http://dx.doi.org/10.3390/md17110618.

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Caribbean sponges of the genus Smenospongia are a prolific source of chlorinated secondary metabolites. The use of molecular networking as a powerful dereplication tool revealed in the metabolome of S. aurea two new members of the smenamide family, namely smenamide F (1) and G (2). The structure of smenamide F (1) and G (2) was determined by spectroscopic analysis (NMR, MS, ECD). The relative and the absolute configuration at C-13, C-15, and C-16 was determined on the basis of the conformational rigidity of a 1,3-disubstituted alkyl chain system (i.e., the C-12/C-18 segment of compound (1). Smenamide F (1) and G (2) were shown to exert a selective moderate antiproliferative activity against cancer cell lines MCF-7 and MDA-MB-231, while being inactive against MG-63.

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Straussberg, Rachel, Esther Ganelin-Cohen, Hadassah Goldberg-Stern, Shay Tzur, Doron M. Behar, Pola Smirin-Yosef, Mali Salmon-Divon, and Lina Basel-Vanagaite. "Lethal neonatal rigidity and multifocal seizure syndrome – Report of another family with a BRAT1 mutation." European Journal of Paediatric Neurology 19, no. 2 (March 2015): 240–42. http://dx.doi.org/10.1016/j.ejpn.2014.11.004.

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Feki, Fatma, Chahnez Triki, and Nesrine Amara. "Drug-Resistant Myoclonic Epilepsy Revealing Juvenile Huntington's Disease: A Case Report." Journal of Pediatric Epilepsy 07, no. 01 (March 2018): 021–23. http://dx.doi.org/10.1055/s-0038-1641727.

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AbstractJuvenile Huntington's disease (JHD) shares many general clinical features with the adult form. One important difference is that JHD patients experience more epileptic manifestations, sometimes difficult to control. We describe an atypical clinical picture of a genetically confirmed JHD patient diagnosed during evaluation for a progressive myoclonic epilepsy. A female patient with a family history of psychiatric disorders developed recurrent drug-resistant myoclonic seizures at the age of 6 years, followed by extrapyramidal symptoms (rigidity and dystonia). Cognitive impairment, akinetic rigidity syndrome, and dystonia were noticed at the age of 10 years. Epileptiform abnormalities were noted in ictal electroencephalography. Magnetic resonance imaging showed brain atrophy. Genetic testing for HD confirmed the diagnosis. JHD can initially manifest as myoclonic epilepsy. A DNA testing should be performed if clinical history is suggestive.

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Moreno, Antonio, Sylvie Chambon, Anand P. Santhanam, Jannick P. Rolland, Elsa Angelini, and Isabelle Bloch. "Combining a breathing model and tumor-specific rigidity constraints for registration of CT-PET thoracic data." Computer Aided Surgery 13, no. 5 (January 2008): 281–98. http://dx.doi.org/10.3109/10929080802431980.

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Heldke, Lisa. "In Praise of Unreliability." Hypatia 12, no. 3 (1997): 174–82. http://dx.doi.org/10.1111/j.1527-2001.1997.tb00011.x.

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Bisexuality challenges familiar assumptions about love, family, and sexual desire that are shared by both heterosexual and homosexual communities. In particular, it challenges the assumption that a person's desire can and should run in only one direction. Furthermore, bisexuality questions the legitimacy, rigidity, and presumed ontological priority of the categories “heterosexual” and “homosexual.” Bisexuals are often assumed to be dishonest and unreliable. I suggest that dishonesty and unreliability can be resources for undermining normative sexualities.

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Wadsworth, Shelley MacDermid, and Kenona Southwell. "Military Families." ANNALS of the American Academy of Political and Social Science 638, no. 1 (October 4, 2011): 163–83. http://dx.doi.org/10.1177/0002716211416445.

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While the U.S. military might at first glance appear to be a model of rigidity rather than flexibility, there are strong incentives to address the work-family concerns of service members and their families. From a work-family perspective, military service generates substantial structural, energy, psychological, and behavioral tensions with family life. Although the U.S. military had already implemented extensive programs, policies, and practices to support families prior to the current conflicts, the wars and demographic changes have spurred the development of innovative new models, some far outside previous boundaries of military workforce flexibility. Future challenges include continuing to adapt as military conflicts and missions evolve, defining the ideal balance between military support and family self-sufficiency, sustaining excellent leadership throughout the military around work-family issues, and caring for the millions of individuals whose lives have been changed by their own or a loved one’s military service during the past decade.

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Fiore, Vincent F., Patrick W. Strane, Anton V. Bryksin, Eric S. White, James S. Hagood, and Thomas H. Barker. "Conformational coupling of integrin and Thy-1 regulates Fyn priming and fibroblast mechanotransduction." Journal of Cell Biology 211, no. 1 (October 12, 2015): 173–90. http://dx.doi.org/10.1083/jcb.201505007.

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Progressive fibrosis is characterized by excessive deposition of extracellular matrix (ECM), resulting in gross alterations in tissue mechanics. Changes in tissue mechanics can further augment scar deposition through fibroblast mechanotransduction. In idiopathic pulmonary fibrosis, a fatal form of progressive lung fibrosis, previous work has shown that loss of Thy-1 (CD90) expression in fibroblasts correlates with regions of active fibrogenesis, thus representing a pathologically relevant fibroblast subpopulation. We now show that Thy-1 is a regulator of fibroblast rigidity sensing. Thy-1 physically couples to inactive αvβ3 integrins via its RGD-like motif, altering baseline integrin avidity to ECM ligands and also facilitating preadhesion clustering of integrin and membrane rafts via Thy-1’s glycophosphatidylinositol tether. Disruption of Thy-1–αvβ3 coupling altered recruitment of Src family kinases to adhesion complexes and impaired mechanosensitive, force-induced Rho signaling, and rigidity sensing. Loss of Thy-1 was sufficient to induce myofibroblast differentiation in soft ECMs and may represent a physiological mechanism important in wound healing and fibrosis.

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Macphee, Graeme JA, and David A. Stewart. "Parkinson's disease." Reviews in Clinical Gerontology 16, no. 1 (February 2006): 1–21. http://dx.doi.org/10.1017/s0959259806002073.

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Parkinson's disease (PD) is a progressive neurodegenerative disease characterized typically by motor features of tremor, rigidity and bradykinesia due to depletion of dopaminergic nigrostriatal neurons. PD is increasingly recognized as a non-motor disorder since symptoms such as dementia, depression and falls emerge with disease progression to become dominant in the clinical picture. PD results in a significant decline in quality of life for both patients and family and contributes to significant economic and institutional costs on family and society. PD is uncommon before the age of 40 but affects approximately 1% of patients over the age of 60, with a rising incidence and prevalence thereafter to around 2% in the population over 80 years of age.

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Li, Xiaoxiong, Jason Y. C. Lim, and Paul D. Beer. "Cationic all-halogen bonding rotaxanes for halide anion recognition." Faraday Discussions 203 (2017): 245–55. http://dx.doi.org/10.1039/c7fd00077d.

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A family of cationic halogen bonding [2]rotaxanes have been synthesised via an active-metal template synthetic strategy. ¹H NMR spectroscopic anion titration investigations reveal these interlocked host systems recognize halides selectively over oxoanions in aqueous–organic solvent media. Furthermore, systematically modulating the rigidity and size of the rotaxanes’ anion binding cavities via metal complexation, as well as by varying the number of halogen bond-donor groups in the axle component, was found to dramatically influence halide anion selectivity.

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Montejo, José E., Mariona Durán, María del Mar Martínez, Ainoa Hilari, Nicoletta Roncalli, Anna Vilaregut, Montserrat Corrales, et al. "Family Functioning and Parental Bonding During Childhood in Adults Diagnosed With ADHD." Journal of Attention Disorders 23, no. 1 (August 24, 2015): 57–64. http://dx.doi.org/10.1177/1087054715596578.

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Objective: This work assesses family functioning, parental bonding, and the relationship between the two in adults diagnosed with ADHD. Method: The study used a retrospective, ex post facto design and consisted of 100 adult participants, who were distributed into two groups: with and without diagnosis of ADHD. Two family assessment instruments were applied: the Family Adaptability and Cohesion Evaluation Scale short spanish version (FACES-20esp)) and the Parental Bonding Instrument (PBI). The diagnosis of ADHD was done by using a semistructured interview for Diagnostic and Statistical Manual of Mental Disorders (4th ed.; DSM-IV) criteria (Conners’ Adult ADHD Diagnostic Interview for DSM-IV [CAADID]). Results: The results showed that higher rigidity and lower emotional connection were significantly associated with ADHD family functioning. Regarding parental bonding, the results showed significant differences only in the care dimension, with the ADHD group reporting lower care than the control group. Conclusion: The results suggest that ADHD families present dysfunctional family functioning with a rigid, separated typology, and parental bonding based on control without affection.

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Fisher, Martin, and Megan Bushlow. "Perceptions of family styles by adolescents with eating disorders and their parents." International Journal of Adolescent Medicine and Health 27, no. 4 (November 1, 2015): 443–49. http://dx.doi.org/10.1515/ijamh-2014-0058.

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Abstract Purpose: The traditional view has been that there is a great deal of rigidity and enmeshment in the families of adolescents with eating disorders, with poor communication and satisfaction among family members. We used the Family Adaptability and Cohesion Evaluation Scales IV (FACES-IV) to study whether this traditional view remains true or whether family styles among those with eating disorders have changed over time to include a wider range of families. Methods: Forty-four patients (aged 14–18 years; mean, 15.4 years; 38 females and 6 males) being treated for an eating disorder in a Division of Adolescent Medicine completed the FACES-IV questionnaire, along with the Beck Depression Inventory (BDI). Patients were diagnosed with anorexia nervosa (38.6%), eating disorders not otherwise specified (59.5%), and bulimia nervosa (2.3%) according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition. They had a mean BMI of 19.6 at the time of questionnaire completion, which was an average of 175 days from first visit. Parents (38 mothers and 6 fathers) completed the FACES-IV and the BDI at the same visit without conferring with their children. Results: A great majority of patients and parents reported their families as being connected/very connected (93% of patients and 98% of parents) and flexible/very flexible (80% and 93%), with low/very low enmeshment (89% and 89%), moderate/low/very low rigidity (77% and 95%), low/very low chaos (84% and 86%), and moderate/high/very high communication (85% and 50%). Despite these scores, all well within the normal range for families with teenagers, 70% of patients and 64% of parents reported low/very low satisfaction with their families, well below the normal range. Depression scores were moderate/severe for 44% of patients and 14% of parents. Analysis of variance and t-tests showed no differences between FACES-IV scores and age, gender, ethnicity, diagnosis, and time from first visit for patients, whereas patients and parents who were more depressed were each more likely (p<0.05) to report greater dissatisfaction with their families. Conclusion: A great majority of patients with eating disorders and their parents reported their family styles to be in the healthy range. However, many patients and parents, especially those with depression, expressed dissatisfaction with their families. These data demonstrate that older concepts of the families of adolescents with eating disorders need to be reconsidered.

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Al Hourani, Mohammed Abdel Karim. "Generational "Structural Flexibility" in the United Arab Emirati Family: Lewis Coser's Functions of Social Conflict Revisited." Canadian Journal of Family and Youth / Le Journal Canadien de Famille et de la Jeunesse 11, no. 1 (January 23, 2019): 136–61. http://dx.doi.org/10.29173/cjfy29409.

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This study examined, to what extent the structure of spousal relationship in United Arab Emirati' (UAE) family has been changed from rigidity to flexibility among a sample of 168 pairs of daughters and mothers (N=336). Three propositions were derived from Coser's theory "functions of social conflict" to measure the structural flexibility: releasing the antagonistic claims, interdependency and reproducing of consensual agreements. Findings revealed that daughters and mothers reported a low level of structural flexibility in terms of the three propositions, however, daughters reported more flexibility than their mothers. This result indicates that the rapid and comprehensive change of the infrastructures didn’t lead to a parallel change in the nontangible elements of UAE culture which are highly rooted in a composition of social traditions and Islamic values.

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Nishikawa, Kohei. "Who Constructs the Path We Take? A Case Study of Nakatsuka Metal and Foil Company." South Asian Journal of Business and Management Cases 6, no. 1 (May 25, 2017): 26–35. http://dx.doi.org/10.1177/2277977917696542.

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With a firm determination, the CEO of a small family owned company, operating in a stagnating market, starts to work to bring in change. Finding the situation to be tough to manage, CEO suggests appointing a consultant to support his initiatives. Rigidity of the systems and procedures followed in the past hinders his change initiatives. In every murky situation, the team always huddled together to reflect on their efforts. After all, it makes the unnoticeable problems noticeable and builds trust worthy relationships among all.

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Koepke, Peter, Karen Räsch, and Philipp Schlicht. "A minimal Prikry-type forcing for singularizing a measurable cardinal." Journal of Symbolic Logic 78, no. 1 (March 2013): 85–100. http://dx.doi.org/10.2178/jsl.7801060.

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AbstractRecently, Gitik, Kanovei and the first author proved that for a classical Prikry forcing extension the family of the intermediate models can be parametrized by /finite. By modifying the standard Prikry tree forcing we define a Prikry-type forcing which also singularizes a measurable cardinal but which is minimal, i.e., there are no intermediate models properly between the ground model and the generic extension. The proof relies on combining the rigidity of the tree structure with indiscernibility arguments resulting from the normality of the associated measures.

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Portran, D., M. Zoccoler, J. Gaillard, V. Stoppin-Mellet, E. Neumann, I. Arnal, J. L. Martiel, and M. Vantard. "MAP65/Ase1 promote microtubule flexibility." Molecular Biology of the Cell 24, no. 12 (June 15, 2013): 1964–73. http://dx.doi.org/10.1091/mbc.e13-03-0141.

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Microtubules (MTs) are dynamic cytoskeletal elements involved in numerous cellular processes. Although they are highly rigid polymers with a persistence length of 1–8 mm, they may exhibit a curved shape at a scale of few micrometers within cells, depending on their biological functions. However, how MT flexural rigidity in cells is regulated remains poorly understood. Here we ask whether MT-associated proteins (MAPs) could locally control the mechanical properties of MTs. We show that two major cross-linkers of the conserved MAP65/PRC1/Ase1 family drastically decrease MT rigidity. Their MT-binding domain mediates this effect. Remarkably, the softening effect of MAP65 observed on single MTs is maintained when MTs are cross-linked. By reconstituting physical collisions between growing MTs/MT bundles, we further show that the decrease in MT stiffness induced by MAP65 proteins is responsible for the sharp bending deformations observed in cells when they coalign at a steep angle to create bundles. Taken together, these data provide new insights into how MAP65, by modifying MT mechanical properties, may regulate the formation of complex MT arrays.

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Oliveira, J. Teotônio de, and Francisco E. Cota Cardoso. "Cortico-basal ganglionic degeneration a case report." Arquivos de Neuro-Psiquiatria 50, no. 2 (June 1992): 216–18. http://dx.doi.org/10.1590/s0004-282x1992000200016.

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The case of a Brazilian patient with cortico-basal ganglionic degeneration (CBGD) is presented. Since three years ago, a 71-year old male displays asymmetric ideomotor apraxia, gait apraxia, cortical sensory impairment, myoclonus, limp dystonia and rigidity. His mental status is spared. There is neither consanguinity nor similar cases in his family. The differential diagnosis of CBGD is discussed. A brief review of the literature is made stressing the clinical and pathological features of CBGD. This disease is poorly known and probably underdiagnosed. Its diagnosis can be safely made based on clinical grounds.

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Khan, Soulat, and Rukhsana Kasusar. "Psychosocial Factors of Non-suicidal Self-Injury Among Adolescents and Young Adults." 2020, VOL. 35, NO. 4 35, no. 4 (December 31, 2020): 637–55. http://dx.doi.org/10.33824/pjpr.2020.35.4.34.

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Present research examines the factors of Non-suicidal Self-Injury (NSSI) in self-injuring individuals. Sample comprised of 164 (n = 82 self-injurers, n = 82 non self-injurers) adolescents and young adults aged 16 to 24 years (M = 20.47, SD = 1.80). Family Adaptability and Cohesion Evaluation Scale-IV (Olson, 2011), Inventory of Interpersonal Problems (Horowitz, Alden, & Wiggins, 1996), Anger Self Report Questionnaire (Reynolds, Walkey, & Green, 1994), Emotional Regulation Questionnaire (Gross & John, 2003), Self-Harm Behavior Questionnaire (Osman & Guiterrez, 2001), Self-Rating Scale (Hooley, Glassman, Weierich, Deliberto, & Nock, 2002), and Demographic Information Questionnaire were used for assessment. Findings demonstrated that self-criticism, anger, emotional suppression, and interpersonal problems had significant, positive; while cognitive reappraisal, family cohesion, and communication had significant negative relationship with NSSI. Family rigidity, enmeshment, self-criticism, and anger emerged as significant positive predictors of NSSI. Cognitive reappraisal mediated the relationship between family cohesion and NSSI. Study findings enhanced the understanding of the underlying mechanisms involved in NSSI and subsequent conceptualization and treatment of adolescents and young adults with NSSI.

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LAUER, C. J., T. BRONISCH, M. KAINZ, W. SCHREIBER, F. HOLSBOER, and J. C. KRIEG. "Pre-morbid psychometric profile of subjects at high familial risk for affective disorder." Psychological Medicine 27, no. 2 (March 1997): 355–62. http://dx.doi.org/10.1017/s0033291796004400.

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Background. Recent observations indicate that a certain pre-morbid personality profile (‘autonomic lability’, i.e. elevated neuroticism, frequent somatic complaints and increased inter-personal sensitivity) appears to be a valid antecedent of major depression. However, most of these prospective studies used samples drawn from the general population, which limits the power of any observed differences between subjects who developed a depressive disorder during the follow-up period and those who did not.Methods. We investigated the psychometric profile of 54 high-risk probands (aged between 18 years and 45 years) without a current or lifetime diagnosis of any psychiatric disorder, but who had first-degree relatives with an affective disorder according to DSM-III-R criteria. Twenty-two control probands, matched for age and gender and without any personal or family history of psychiatric disorders, served as the reference group.Results. As a group, the high-risk probands scored higher than the controls on scales that assessed neuroticism, rigidity, depressive cognitions, vegetative lability and stress. With an individual-orientated approach (cluster analysis), 30 high-risk probands were identified as conspicuous, characterized by elevated rigidity and increased ‘autonomic lability’. The remaining 24 high-risk probands showed a psychometric profile very similar to that of the controls.Conclusions. The present findings in 54 probands at high risk for affective disorders not only strongly underline the assumption that the personality trait ‘autonomic lability’ is a valid antecedent of at least major depression, but also add the personality trait ‘rigidity’ as a further and potential candidate for a true vulnerability marker for affective disorders.

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Jaramillo, Manuela, Natasha Burke, Lauren Shomaker, Sheila Brady, Merel Kozlosky, Jack Yanovski, and Marian Tanofsky-Kraff. "Perceived Family Functioning in Relation to Energy Intake in Adolescent Girls with Loss of Control Eating." Nutrients 10, no. 12 (December 2, 2018): 1869. http://dx.doi.org/10.3390/nu10121869.

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Family functioning is hypothesized to influence the development, maintenance, and treatment of obesity and eating disorders. However, there are limited data examining family functioning in relation to energy intake in the laboratory among youth at high-risk for eating disorders and excess weight gain. Therefore, we examined the relationship between perceived family functioning and energy intake during a laboratory test meal designed to model a binge episode. We performed hierarchical multiple regression analyses among 108 adolescent girls in an excess weight gain prevention trial. Participants were at high-risk for eating disorders and excess weight gain due to reports of loss of control eating (LOC) and high body mass index (BMI). Participants completed the Family Adaptability and Cohesion Scale III to assess family adaptability and cohesion. Following an overnight fast, girls consumed lunch from a laboratory test meal. Poorer family adaptability, but not cohesion, was associated with lower percentage of total energy intake from protein and greater percentage of total energy intake from carbohydrates. Neither adaptability nor cohesion were significantly associated with total intake. We conclude that among girls with LOC eating and high BMI, poor reported family adaptability is associated with greater consumption of obesity-promoting macronutrients during binge episodes. Directionality and temporality of this association between unhealthy consumption and family rigidity requires further study.

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Lalinec-Michaud, M. "Three Cases of Suicide in Chinese-Canadian Women." Canadian Journal of Psychiatry 33, no. 2 (March 1988): 153–56. http://dx.doi.org/10.1177/070674378803300215.

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This article purports to draw attention to the particular phenomenology of depression and suicide in Chinese. Three case histories are presented. The patients were all women in their forties, first-generation immigrants having resided for more than 20 years in Canada. These cases illustrate the significance of certain cultural factors in the understanding of depression in Chinese patients, namely: the importance of somatization, the familial reaction of denial or rejection to mental illness, the rigidity of the traditional family structure. The authors discuss the role played by conflicts of culture in the greater vulnerability to depression in Chinese middle-aged women.

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Journal articles on the topic 'Family rigidity'

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