bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhanced Electromechanical Properties of Three‐Phased Polydimethylsiloxane Nanocomposites via Surface Encapsulation of Barium Titanate and Multiwalled Carbon Nanotube with Polydopamine
Authors: Cai Cheng , Chen Tao , Chen Xian , Zhang Yan‐ting , Gong Xing‐hou , Wu Chong‐gang , Hu Tao 
Published: April 2021

AbstractOwing to its low modulus, high breakdown strength, and low dielectric loss, polydimethylsiloxane (PDMS) is used as a great dielectric elastomer despite its low dielectric permittivity. Herein, polydopamine (PDA) is used to encapsulate barium titanate (BT) and multiwalled carbon nanotube (MWCNT) in situ during its polymerization to prepare core–shell structured fillers, which are then solution‐compounded with PDMS, and subsequently vulcanized with a cross‐linking agent. The resulting three‐phased nanocomposites exhibit improved filler‐PDMS interactions upon filler PDA‐encapsulation likely due to interfacial hydrogen bonding, thereby to enhance filler dispersion within the PDMS matrix. Compared with the unencapsulated PDMS nanocomposites, a softening effect (i.e., decreased cross‐linking) by the finer filler‐dispersion, in the context of a hardening effect by filler network formation, strengthens in the PDA‐modified nanocomposites to produce their lower moduli. Additionally, the insulating, interfacial PDA partially inhibits the formation of conductive paths and leakage currents, causing decreased dielectric loss while increased breakdown strength of the nanocomposites. Therefore, the PDA‐encapsulated BT and MWCNT filled PDMS nanocomposites display excellent electromechanical properties with a largest possible actuated strain of 7.0% at a breakdown strength of 13.9 kV mm−1, which is 1.8 times that (3.9%@15.0 kV mm−1) of their unencapsulated counterparts and 4.7 times that (1.5%@18.4 kV mm−1) of unfilled, neat PDMS.
Compositional Distribution of Binary Living Copolymers and Their End Sequences
Authors: Trhlíková Olga , Walterová Zuzana , Janata Miroslav , Kanizsová Lívia , Horský Jiří 
Published: April 2021

AbstractStatistical analysis is carried out for the compositional distribution (CD) of binary copolymers prepared by living copolymerization. The CDs of both block and random (Bernoullian) binary copolymers are found to be the product of two Poisson distributions. The analysis is further developed for instantaneous first‐order Markovian copolymers (the terminal model). The relations are derived for the CD of i) copolymers with fixed polymerization degree and ii) of copolymers with variable polymerization degree. The relations ad (i) describe also CD of copolymer end sequences; however, they cannot be used for interpretation of tandem mass spectrometry where end‐sequence CD for isobaric copolymers is required. Such relations are also derived. Stepwise application of the equations affords approximation of high‐conversion living copolymerization. Fair agreement of the derived relations with kinetic Monte–Carlo simulation and qualitative agreement with the experimental data on n‐butyl acrylate/methyl methacrylate copolymers prepared by quasi‐living radical polymerization is found.
Prolonged Response to HER2-Directed Therapy in Three Patients with HER2-Amplified Metastatic Carcinoma of the Biliary System: Case Study and Review of the Literature
Authors: May Michael , Raufi Alexander G. , Sadeghi Sina , Chen Karen , Iuga Alina , Sun Yu , Ahmed Firas , Bates Susan , Manji Gulam A. 
Published: April 2021

Abstract

HER2 amplification, which results in overexpression of the receptor tyrosine kinase HER2, has been described in a wide variety of malignancies. HER2-targeting agents have been incorporated into the treatment paradigms for HER2-overexpressing breast and gastric cancer. More recently, these agents have shown promise in other gastrointestinal malignancies, such as colon cancer and biliary tract tumors. This study discusses two patients with gallbladder carcinoma and a third with ampullary carcinoma who were able to achieve marked responses to HER2-directed therapy. These cases underscore the importance of molecular analysis for HER2 amplification/HER2 overexpression, irrespective of tumor histology, and highlight a need for further investigation of HER2-directed therapy beyond breast and gastroesophageal cancers.

Key Points
Outcomes and Prognostic Factors of Patients with Metastatic Colorectal Cancer Who Underwent Pulmonary Metastasectomy with Curative Intent: A Brazilian Experience
Authors: Gössling Gustavo C. L. , Chedid Márcio F. , Pereira Fernando S. , Silva Rafaela K. , Andrade Leonardo B. , Peruzzo Nícolas , Saueressig Maurício G. , Schwartsmann Gilberto , Parikh Aparna R. 
Published: April 2021

Abstract

Background
We aimed to identify clinicopathological and molecular features associated with progression-free survival (PFS) and overall survival (OS) after pulmonary metastasectomy for metastatic colorectal cancer in a retrospective cohort in Brazil.

Materials and Methods
We did a retrospective review of thoracic surgeries performed in a single large academic hospital in Brazil from January 1985 to September 2019. Demographics, previously described prognostic factors, and clinicopathological and molecular characteristics were abstracted. Univariate Cox regression was performed for each variable, and, when significant, data were dichotomized to provide clinically meaningful thresholds.

Results
Records from 698 patients were reviewed. Fifty-eight patients underwent pulmonary metastasectomy with curative intent. Of those, 53.4% had a single metastatic lesion. The median size of the largest lesion was 1.5 cm. Results of RAS, RAF, and mismatch repair testing and of cytokeratin 20 (CK20) and CDX2 testing were available for 13.8% and 58.6% of the sample, respectively. Median PFS was 14 months, median OS was 58 months, and 5-year survival was 49.8%. Unfavorable prognostic factors for OS included disease-free interval (DFI) &lt;24 months, synchronous presentation, size of the largest lesion ≥2 cm, and loss of CK20 expression. Presenting with more than one lesion was prognostic for PFS but not for OS.

Conclusion
In this Brazilian cohort, our findings corroborate existing data supporting DFI, synchronous presentation, and number and size of lesions as prognostic factors. Furthermore, we found that loss of CK20 expression may be associated with more aggressive disease and shorter OS. Additional molecular prognostic factors after pulmonary metastasectomy for colorectal cancer should be further explored.

Implications for Practice
This study consolidates disease-free interval, synchronous presentation, and number and size of lesions as clinically relevant data that may help guide therapy for patients with colorectal cancer and lung metastases who are candidates for curative-intent metastasectomy. Additionally, in this sample, lack of cytokeratin 20 expression in metastases was associated with shorter progression-free survival and overall survival, suggesting that biomarkers also may have a role in guiding therapy in this setting and that additional biomarkers should be further explored.
A person‐centered evaluation of subjective well‐being using a latent profile analysis: Associations with negative life events, distress, and emotion regulation strategies
Authors: Lazić Milica , Jovanović Veljko , Gavrilov‐Jerković Vesna , Boyda David 
Published: April 2021

AbstractThe present study examined the structure of subjective well‐being (SWB) using a person‐centered approach, and tested whether SWB profiles differed in a number of self‐reported negative life events, emotional distress, and cognitive emotion regulation strategies. The sample included a total of 945 undergraduate students from Serbia (78% female, Mage = 20.14 years). A 3‐step latent profile analysis with partial conditional independence revealed four profiles, which have been tentatively labeled: low SWB (a combination of low life satisfaction, low positive affect, and high negative affect), mixed SWB (moderate to high life satisfaction, moderate to low positive affect, high negative affect), moderately low SWB (low life satisfaction, moderate to low positive affect, moderate negative affect), high SWB (high life satisfaction, high positive affect, low negative affect). A comparison of SWB profiles applied to symptoms of emotional distress, along with the number of self‐reported negative life events and emotion regulation strategies, offered support to the validity of four SWB profiles. Our findings suggest that a person‐centered perspective might be a valuable tool for understanding the structure of SWB.
Social Development (Excerpts from Her 2004 Oral History)
Authors: Davis Gloria 
Published: April 2021

AbstractI did my anthropological research in Indonesia between 1972 and 1974. I happened to work on the movement of Balinese to central Sulawesi, a part of the Indonesian transmigration program, which, in fact, after a few years is what led directly to my being hired by the Bank. I taught at Yale for three years. While I was teaching, a person came up after my lecture, and said, “The World Bank wants you.”
Fighting Poverty, Combatting Social Exclusion
Authors: Partridge William L. 
Published: April 2021

AbstractThe Chinese have a saying: through a drop of water you can see the whole ocean. This chapter analyzes the process of integrating social development policy and practice into the operations of the World Bank through the lens of my own personal experience, a drop of water through which we will see how sociologists and anthropologists transformed the larger organizational culture of the institution.
From Onlookers to Participants: How the Role of Social Scientists Has Changed in India’s Development in the Last 70 Years
Authors: Mathur Hari Mohan 
Published: April 2021

AbstractPrior to the mid-1970, India’s non-economic social scientists had no role in policy, planning or implementation of resettlement, though their skills were relevant for the purpose and anthropologists had the requisite expertise. But anthropologists remained only distant onlookers of the terrible things that were happening in the name of development. In 1974 a historic change took place in the World Bank. This was the appointment of anthropologists and sociologists as regular staff. Thereafter, social concerns began receiving increasing attention in the Bank. This also resulted in a sudden demand for anthropologists and sociologists to prepare projects for Bank financing. India then also began involving anthropologists and sociologists in preparing projects involving social issues. From mere onlookers, they then became active participants in development activities.
The 1995 Malinowski Award Lecture: Social Organization and Development Anthropology
Authors: Cernea Michael M. 
Published: April 2021

AbstractIt is a great honor to receive the Bronislaw Malinowski Award from this scholarly community of development social scientists, and I am deeply grateful for this recognition. Being associated through this Award with the name and legacy of Malinowski, and with the line of distinguished scholars who have preceded me as its recipients, is a moving and stimulating experience.
Meson spectrum in the large N limit
Authors: Pérez Margarita García , González-Arroyo Antonio , Okawa Masanori 
Published: April 2021

Abstract
We present the result of our computation of the lowest lying meson masses for SU(N) gauge theory in the large N limit (with Nf /N → 0). The final values are given in units of the square root of the string tension, and with errors which account for both statistical and systematic errors. By using 4 different values of the lattice spacing we have seen that our results scale properly. We have studied various values of N (169, 289 and 361) to monitor the N-dependence of the most sensitive quantities. Our methodology is based upon a first principles approach (lattice gauge theory) combined with large N volume independence. We employed both Wilson fermions and twisted mass fermions with maximal twist. In addition to masses in the pseudoscalar, vector, scalar and axial vector channels, we also give results on the pseudoscalar decay constant and various remormalization factors.
Generalized global symmetries of T[M] theories. Part I
Authors: Gukov Sergei , Hsin Po-Shen , Pei Du 
Published: April 2021

Abstract
We study reductions of 6d theories on a d-dimensional manifold Md, focusing on the interplay between symmetries, anomalies, and dynamics of the resulting (6 −d)-dimensional theory T[Md]. We refine and generalize the notion of “polarization” to polarization on Md, which serves to fix the spectrum of local and extended operators in T[Md]. Another important feature of theories T[Md] is that they often possess higher-group symmetries, such as 2-group and 3-group symmetries. We study the origin of such symmetries as well as physical implications including symmetry breaking and symmetry enhancement in the renormalization group flow. To better probe the IR physics, we also investigate the ’t Hooft anomaly of 5d Chern-Simons matter theories. The present paper focuses on developing the general framework as well as the special case of d = 0 and 1, while an upcoming paper will discuss the case of d = 2, 3 and 4.
Scattering of gravitons and spinning massive states from compact numerators
Authors: Bjerrum-Bohr N. Emil J. , Brown Taro V. , Gomez Humberto 
Published: April 2021

AbstractWe provide a new efficient diagrammatic tool, in the context of the scattering equations, for computation of covariantD-dimensional tree-leveln-point amplitudes with pairs of spinning massive particles using compact exponential numerators. We discuss how this framework allows non-integer spin extensions of recurrence relations for amplitudes developed for integer spin. Our results facilitate the on-going program for generating observables in classical general relativity from on-shell tree amplitudes through the Kawai-Lewellen-Tye relations and generalized unitarity.
Nonrepetitive List Colorings of the Integers
Authors: Bosek Bartłomiej , Grytczuk Jarosław , Nayar Barbara , Zaleski Bartosz 
Published: April 2021

AbstractA coloring of the integers is nonrepetitive if no two adjacent intervals have the same color sequence. A beautiful theorem of Thue asserts that there exists a nonrepetitive coloring of $${\mathbb {N}}$$
N
using only three colors. We obtain some generalizations of this result in which the adjacency of intervals is specified by more general graphs. We focus on the list variant of the problem, in which every integer gets a color from its own set of colors. For instance, we prove that there exists a coloring of $${\mathbb {N}}$$
N
from arbitrary lists of size 8, such that the following property holds for every $$n\ge 1$$

n
≥
1

: among any $$2^n$$

2
n

consecutively adjacent intervals, each of length n, no two have the same color sequence. Another result is related to the possible extension of the famous Dejean’s conjecture to the list setting. It asserts that for every $$k\ge 1$$

k
≥
1

, there is a coloring of $${\mathbb {N}}$$
N
from lists of size $$k+2\sqrt{k}$$

k
+
2

k

, such that no two among any k consecutively adjacent intervals have the same color sequence.
Honest, Open, Proud to support disclosure decisions and to decrease stigma’s impact among people with mental illness: conceptual review and meta-analysis of program efficacy
Authors: Rüsch Nicolas , Kösters Markus 
Published: April 2021

Abstract
Purpose
Honest, Open, Proud (HOP; formerly “Coming Out Proud”/COP) is a peer-led group program to support people with mental illness in their disclosure decisions and in their coping with stigma. The aims of this study were to provide (i) a conceptual review of HOP, including versions for different target groups and issues related to outcome measurement and implementation; and (ii) a meta-analysis of program efficacy.

Methods
Conceptual and empirical literature on disclosure and the HOP program was reviewed. Controlled trials of HOP/COP were searched in literature databases. A meta-analysis of HOP efficacy in terms of key outcomes was conducted.

Results
HOP program adaptations for different target groups (e.g. parents of children with mental illness; veterans or active soldiers with mental illness) exist and await evaluation. Recruitment for trials and program implementation may be challenging. A meta-analysis of five HOP RCTs for adults or adolescents with mental illness or adult survivors of suicide attempts found significant positive effects on stigma stress (smd = − 0.50) as well as smaller, statistically non-significant effects on self-stigma (smd = − 0.17) and depression (smd = − 0.11) at the end of the HOP program. At 3- to 4-week follow-up, there was a modest, not statistically significant effect on stigma stress (smd = − 0.40, 95%-CI -0.83 to 0.04), while effects for self-stigma were small and significant (smd = − 0.24). Long-term effects of the HOP program are unknown.

Conclusion
There is initial evidence that HOP effectively supports people with mental illness in their disclosure decisions and in their coping with stigma. Implementation issues, future developments and public health implications are discussed.
Attitudes towards disclosing a mental illness: impact on quality of life and recovery
Authors: Mayer Lea , Corrigan Patrick W. , Eisheuer Daniela , Oexle Nathalie , Rüsch Nicolas 
Published: April 2021

Abstract
Purpose
The decision whether to disclose a mental illness has individual and social consequences. Secrecy may protect from stigma and discrimination while disclosure can increase social support and facilitate help-seeking. Therefore, disclosure decisions are a key reaction to stigma. The first aim of this study was to test a newly developed scale to measure disclosure attitudes, the Attitudes to Disclosure Questionnaire (AtDQ). The second aim was to examine the impact of attitudes towards disclosing a mental illness on quality of life and recovery.

Methods
Among 100 participants with mental illness, disclosure attitudes, quality of life, recovery, benefits of disclosure, secrecy, social withdrawal, self-stigma, and depressive symptoms were assessed at weeks 0, 3 and 6. Psychometric properties of the AtDQ were analysed. Longitudinal associations between disclosure attitudes at baseline and quality of life and recovery after 6 weeks were examined in linear regressions.

Results
The analyses of the AtDQ indicated one-factor solutions, high acceptability, high internal consistency, and good retest reliability for the total scale and the subscales as well as high construct validity of the total scale. Results provided initial support for sensitivity to change. More positive disclosure attitudes in general and in particular regarding to family at baseline predicted better quality of life and recovery after 6 weeks.

Conclusion
The current study provides initial support for the AtDQ as a useful measure of disclosure attitudes. Disclosing a mental illness, especially with respect to family, may improve quality of life and recovery of people with mental illness.
Supporting independence at home for people living with dementia: a qualitative ethnographic study of homecare
Authors: Leverton Monica , Burton Alexandra , Beresford-Dent Jules , Rapaport Penny , Manthorpe Jill , Azocar Ignacia , Giebel Clarissa , Lord Kathryn , Cooper Claudia 
Published: April 2021

Abstract
Purpose
The aim of this ethnographic study was to investigate how homecare workers support or inhibit independence in people living with dementia.

Methods
We undertook 100 h of participant observations with homecare workers (n = 16) supporting people living with dementia (n = 17); and 82 qualitative interviews with people living with dementia (n = 11), family carers (n = 22), homecare managers and support staff (n = 11), homecare workers (n = 19) and health and social care professionals (n = 19). We triangulated data and analysed findings thematically.

Results
We developed three themes: (1) independence and the home environment, highlighting ongoing negotiations between familiarity, suitability and safety for care; (2) independence and identity, exploring how homecare workers’ understanding of their clients’ identity can enable active participation in tasks and meaningful choices; and (3) independence and empowerment, considering the important position of homecare workers to advocate for clients living with dementia while navigating authoritative power amongst proxy decision-makers.

Conclusion
We consider that person-centred care should also be home-centred, respecting the client’s home as an extension of self. Homecare workers can use their understanding of clients’ identities, alongside skills in providing choice and developing relationships of interdependence to engage clients in everyday tasks. Homecare workers are well placed to advocate for their client’s voice within the care network, although their ability to do so is limited by their position within power structures.
Experimental comparative investigation on creep behavior of mineral cast, ultra-high-performance concrete, and natural stone for precision machinery structures
Authors: Relea Eduard , Pfyffer Benjamin , Weiss Lukas , Wegener Konrad 
Published: April 2021

AbstractPrecision machinery employs a variety of materials for its structures: welded steel, cast iron, mineral cast, ultra-high-performance concrete, and natural stone. The machine tool industry requires high control on the geometrical and dimensional stability of the machine structure in order to ensure precise and accurate parts in the micrometer range. This means that even the smallest deviation from the nominal values of the machine tool can result in unacceptable part tolerances. For this work, comparative experiments were set up to analyze and evaluate the influence of load on the creep behavior of three classes of materials: mineral cast, ultra-high-performance concrete, and natural stone.
Automated VLBI scheduling using AI-based parameter optimization
Authors: Schartner Matthias , Plötz Christian , Soja Benedikt 
Published: April 2021

AbstractWithin this work, a new geodetic very long baseline interferometry (VLBI) scheduling approach inspired by evolutionary processes based on selection, crossover and mutation is presented. It mimics the biological concept “surviving of the fittest” to iteratively explore the scheduling parameter space looking for the best solution. Besides providing high-quality results, one main benefit of the proposed approach is that it enables the generation of fully automated and individually optimized schedules. Moreover, it generates schedules based on transparent rules, well-defined scientific goals and by making decisions based on Monte Carlo simulations. The improvements in terms of precision of geodetic parameters are discussed for various observing programs organized by the International VLBI Service for Geodesy and Astrometry (IVS), such as the OHG, R1, and T2 programs. In the case of schedules with a difficult telescope network, an improvement in the precision of the geodetic parameters up to 15% could be identified, as well as an increase in the number of observations of up to 10% compared to classical scheduling approaches. Due to the high quality of the produced schedules and the reduced workload for the schedulers, various IVS observing programs are already making use of the evolutionary parameter selection, such as the AUA, INT2, INT3, INT9, OHG, T2 and VGOS-B program.