Miracle-dz/UniFAR-FTUs huggingface dataset:
Psychophysics for perception of (in)determinate art

The question of how humans perceive art and how the sensory percept is endowed with aesthetics by the human brain has continued to fascinate psychologists and artists alike. It seems, for example, rather easy for us to classify a work of art as either "abstract" or "representational". The artist Robert Pepperell recently has produced a series of paintings that seek to defy this classification: his goal was to convey "indeterminancy" in these paintings - scenes that at first glance look like they contain an object or belong to a certain genre but that upon closer examination escape a definite determination of their contents. Here, we report results from several psychophysical experiments using these artworks as stimuli, which seek to shed light on the perceptual processing of the degree of abstraction in images. More specifically, the task in these experiments was to categorize a briefly shown image as "abstract" or "representational". Stimuli included Pepperell's paintings each of which was paired with a similar representational work of art from several periods and several artistic genres. The results provide insights into the visual processes determining our perception of art and can also function as a "objective" validation for the intentions of the artist.
The Complex Action Recognition via the Correlated Topic Model

Human complex action recognition is an important research area of the action recognition. Among various obstacles to human complex action recognition, one of the most challenging is to deal with self-occlusion, where one body part occludes another one. This paper presents a new method of human complex action recognition, which is based on optical flow and correlated topic model (CTM). Firstly, the Markov random field was used to represent the occlusion relationship between human body parts in terms of an occlusion state variable. Secondly, the structure from motion (SFM) is used for reconstructing the missing data of point trajectories. Then, we can extract the key frame based on motion feature from optical flow and the ratios of the width and height are extracted by the human silhouette. Finally, we use the topic model of correlated topic model (CTM) to classify action. Experiments were performed on the KTH, Weizmann, and UIUC action dataset to test and evaluate the proposed method. The compared experiment results showed that the proposed method was more effective than compared methods.
Happy, stable and contented: accomplished ageing in the imagined futures of young New Zealanders

ABSTRACT In imagining how their lives might turn out, 100 young New Zealanders aged between 16 and 18 years wrote descriptions of their future lifecourse. Their descriptions of themselves at the nominal age of 80 years form the basis of the research reported in this paper. For these young people, ageing and old age are understood as accomplishments in the context of an imagined lifecourse. They see personal ageing as shaped by a common temporal ordering of life events that ensures material security, financial success, and an enduring intimate relationship. In imagining themselves aged 80 years, three key themes that constitute a discourse of ‘accomplished ageing’ were identified: the experience of old age would be contingent on achievements throughout the lifecourse; old age would be a time for harvest; and while people may look old they can continue to ‘be’ young. Although their images of bodily appearance included some negative stereotypes of old age, appearance and bodily function were understood as amenable to life-long self-management. The young people imagined themselves as life-long active agents, and framed a positive image and homogeneous social identity for older people. The ‘accomplished ageing’ discourse has implications for how ageing is understood by young people. In particular, the social identity that accomplished ageing implies may shape how they relate to those who do not accomplish ageing in the imagined optimistic and homogeneous way.
Historical Prostate Cancer Screening and Treatment Outcomes from a Single Institution

Objective To quantify outcomes of individuals diagnosed and treated for prostate cancer in a single institution. Design Retrospective electronic chart abstraction. Setting Marshfield Clinic, the largest private multispecialty group practice in Wisconsin, and one of the largest in the United States, provides health care services annually to approximately 385,000 unique patients through 1.8 million annual patient encounters. Participants Individuals within the Marshfield Clinic cancer registry who had been diagnosed with prostate cancer between 1960 and 2009. Methods Electronic chart abstraction from the cancer registry and the electronic medical record was conducted (N=6,181). Data abstracted included age at diagnosis; stage and grade of tumor; prostate specific antigen (PSA) values before, at, and after diagnosis; initial cancer treatment; follow-up time; subsequent cancer treatments; evidence of metastasis; age of death; and cause of death, if known. Results The average age of prostate cancer diagnosis has decreased from 70–71 years in the 1960’s and 1970’s to an average age at diagnosis of 67 years in the 2000’s (P<0.001). This decrease in age occurred within the decades of implementation of PSA screening. Approximately 74% of men diagnosed with prostate cancer within the PSA screening era had at least one PSA test, and the presence of a PSA test did not appear to change treatment outcome. Age, grade, and stage were the biggest predictors of prostate cancer outcome. There was no difference in event-free survival between current treatment types (radical prostatectomy, brachytherapy, photon treatment, or intensity-modulated radiation therapy) (2003 or later) when stratified by age (greater than 85%, 5-year event-free survival P=0.85); however, more events occurred with older external beam radiation treatment regimens (1993–2003) (70% to 75%, 5-year event-free survival P=0.001). Conclusion Individuals diagnosed and treated for prostate cancer within the Marshfield Clinic comprehensive care setting follow national trends with a decreased age of diagnosis since the advent of PSA screening. Outcomes for individuals treated within the Clinic system are also comparable to national trends.
The Statistical Discrepancy between the Intergalactic Medium and Dark Matter Fields: One-Point Statistics

We investigate the relationship between the mass and velocity fields of the intergalactic medium (IGM) and dark matter. Although the evolution of the IGM is dynamically governed by the gravity of the underlying dark matter field, some statistical properties of the IGM inevitably decouple from those of the dark matter once the nonlinearity of the dynamical equations and the stochastic nature of the field is considered. With simulation samples produced by a hybrid cosmological hydrodynamic/N-body code, which is effective in capturing shocks and complicated structures with high precision, we find that the one-point distributions of the IGM field are systematically different from that of dark matter as follows: (1) the one-point distribution of the IGM peculiar velocity field is exponential at least at redshifts less than 2, while the dark matter velocity field is close to a Gaussian field; (2) although the one-point distributions of the IGM and dark matter are similar, the point-by-point correlation between the IGM and dark matter density fields significantly differs on all scales and redshifts analyzed; (3) the one-point density distributions of the difference between IGM and dark matter fields are highly non-Gaussian and long tailed. These discrepancies violate the similarity between the IGM and dark matter and cannot be explained simply as Jeans smoothing of the IGM. However, these statistical discrepancies are consistent with the fluids described by stochastic-force-driven nonlinear dynamics.
Recasts as Feedback to Language Learners

Some researchers suggest that recasts are effective in showing learners how their current interlanguage differs from the target (Long & Robinson, 1998). Others have argued that recasts are ambiguous and may be perceived by the learner as confirmation of meaning rather than feedback on form (Lyster, 1998a). We review research on the effectiveness of recasts in first and second language acquisition, paying particular attention to how recasts have been defined and how their impact has been assessed in observational and experimental studies. We conclude that recasts appear to be most effective in contexts where it is clear to the learner that the recast is a reaction to the accuracy of the form, not the content, of the original utterance.
Preserved genetic diversity in organoids cultured from biopsies of human colorectal cancer metastases

Significance Chemotherapy has been proven in clinical studies to improve overall survival significantly. Unfortunately, there is a significant degree of heterogeneity in tumor chemosensitivity, often resulting in unnecessary treatment and needless exposure to toxic side-effects. A platform is needed that can identify preemptively which patients will or will not benefit from treatment. Tumor organoids, 3D cultures of cancer cells, present such an individualized platform. In this study we demonstrate that organoid cultures can be established from metastatic biopsy specimens with a high success rate and genetically represent the metastasis they were derived from. These data support the translation of this innovative technology to the clinic as an ex vivo screening platform for tailoring treatment. Tumor organoids are 3D cultures of cancer cells. They can be derived from the tumor of each individual patient, thereby providing an attractive ex vivo assay to tailor treatment. Using patient-derived tumor organoids for this purpose requires that organoids derived from biopsies maintain the genetic diversity of the in vivo tumor. In this study tumor biopsies were obtained from 14 patients with metastatic colorectal cancer (i) to test the feasibility of organoid culture from metastatic biopsy specimens and (ii) to compare the genetic diversity of patient-derived tumor organoids and the original tumor biopsy. Genetic analysis was performed using SOLiD sequencing for 1,977 cancer-relevant genes. Copy number profiles were generated from sequencing data using CopywriteR. Here we demonstrate that organoid cultures can be established from tumor biopsies of patients with metastatic colorectal cancer with a success rate of 71%. Genetic analysis showed that organoids reflect the metastasis from which they were derived. Ninety percent of somatic mutations were shared between organoids and biopsies from the same patient, and the DNA copy number profiles of organoids and the corresponding original tumor show a correlation of 0.89. Most importantly, none of the mutations that were found exclusively in either the tumor or organoid culture are in driver genes or genes amenable for drug targeting. These findings support further exploration of patient-derived organoids as an ex vivo platform to personalize anticancer treatment.
User and Carer Involvement in Social Work Education—A University Case Study: Manipulation or Citizen Control?

This paper provides an account of one university's experience of involving service users and carers in the delivery of the new undergraduate and postgraduate social work degrees. It poses the question as to whether user and carer involvement in social work education can be viewed as a means of promoting citizen participation or whether it is a case of manipulating relatively powerless groups. In addressing this question, service users and carers and social work tutors describe, from their own distinct perspectives, the processes in which they were both involved.
Excise Taxes with Multiproduct Transactions

I examine excise taxes levied on multiproduct retailers. Excise taxes reduce equilibrium output and decrease equilibrium product variety in the short run, but taxes can raise output per product in the long run and induce entry. Excise taxes are overshifted into prices in a wide range of cases, including under linear and concave demand conditions, and excise taxes shift less than one-for-one into prices only when demand is highly convex. Multiproduct transactions substantively alter the efficiency of ad valorem and specific forms of excise taxes and affect the comparison of relative tax performance over short-run and long-run time horizons. (JEL H25, H32, L11, L13, L81)
Upregulated periostin promotes angiogenesis in keloids through activation of the ERK 1/2 and focal adhesion kinase pathways, as well as the upregulated expression of VEGF and angiopoietin-1

Periostin, a secreted extracellular matrix protein, is highly expressed in wound healing and in various types of human cancer and is involved in angiogenesis. Keloids, considered dermal benign tumors, are granulomatous lesions characterized by capillary proliferation. However, the underlying regulatory mechanism of angiogenesis in keloids remains to be elucidated. The present study aimed to examine the effect of periostin on angiogenesis in keloids. The expression of periostin was upregulated and the vessel density was higher in human keloids compared with normal tissue, observed following staining with CD31 and CD105. Periostin demonstrated a markedly positive correlation with blood vessel density, which was assessed using CD31 staining (r=0.711; P<0.01) and a weak correlation was observed using CD105 staining (r=0.251; P<0.01). Conditioned medium from keloid fibroblasts (KFs) promoted the migration and tube formation of human umbilical vein endothelial cells (HUVECs) compared with normal fibroblasts and this effect may have been abrogated by the short hairpin RNA knockdown of periostin. Treatment with recombinant human periostin promoted the migration and tube formation of HUVECs by activating the extracellular signal-regulated kinase 1/2 and focal adhesion kinase signaling pathway. In addition, periostin increased the secretion of vascular endothelial growth factor and angiopoietin-1 in the KFs. In conclusion, these data suggested that upregulation in the level of periostin may promote angiogenesis directly and indirectly in keloids and may be a key factor in keloid development. Periostin may, therefore, be a promising therapeutic target in the treatment of keloids and other angioproliferative diseases.
Interventions for street children

Three perspectives concerning interventions for street children are examined: consumers, professional wisdom and research. Most professional literature to date has concentrated solely on describing this population. Consequently, the knowledge base on intervention strategies for street children remains at a nascent stage of development. French Cet article examine trois perspectives concernant les interventions auprè s des enfants de la rue: les usagers, le savoir-faire professionnel et la recherche. Jusqu'à ce jour, la litté rature professionnelle s'est essentiellement borné e á dé crire ce groupe-cible. Il en ré sulte que le savoir sur les straté gies d'intervention auprè s des enfants de la rue n'en est encore qu'à l'é tape du dé veloppement. Spanish Se examinan tres perspectivas concernientes a las intervenciones en el problema de los ninños de la calle: la de los consumidores, la de la sabiduría profesional, y la de la investigación. Hasta ahora la mayor parte de la literatura profesional se ha limitado a describir esta población. Consecuentemente, el conocimiento base respecto a estrategias de intervención en este problema está naciendo todavía.
Experienced teacher learning within the context of reciprocal peer coaching

A considerable amount of literature on peer coaching suggests that the professional development of teachers can be improved through experimentation, observation, reflection, the exchange of professional ideas, and shared problem‐solving. Reciprocal peer coaching provides teachers with an opportunity to engage in such activities in an integrated form. Even though empirical evidence shows effects of peer coaching and teacher satisfaction about coaching, the actual individual professional development processes have not been studied extensively. This article offers a way to analyse and categorize the learning processes of teachers who take part in a reciprocal peer coaching trajectory by using the Interconnected Model of Teacher Professional Growth as an analytical tool. Learning is understood as a change in the teacher’s cognition and/or behaviour. The assumption underlying the Interconnected Model of Teacher Professional Growth is that change occurs in four distinct domains that encompass the teacher’s professional world: the personal domain, the domain of practice, the domain of consequence and the external domain. Change in one domain does not always lead to change in another, but when changes over domains do occur, different change patterns can be described. Repeated multiple data collection methods were used to obtain a rich description of patterns of change of four experienced secondary school teachers. The data sources were: audiotapes of coaching conferences, audiotapes of semi‐structured learning interviews by telephone, and digital diaries with teacher reports of learning experiences. Qualitative analysis of the three data sources resulted in two different types of patterns: including the external domain and not including the external domain. Patterns of change within a context of reciprocal peer coaching do not necessarily have to include reciprocal peer coaching activities. When, however, patterns do include the external reciprocal peer coaching domain, this is often part of a change process in which reactive activities in the domains of practice and consequence are involved as well. These patterns often demonstrate more complex processes of change.
Algorithms for the arithmetic of elliptic curves using Iwasawa theory

We explain how to use results from Iwasawa theory to obtain information about p-parts of Tate-Shafarevich groups of specific elliptic curves over Q. Our method provides a practical way to compute #X(E/Q)(p) in many cases when traditional p-descent methods are completely impractical and also in situations where results of Kolyvagin do not apply, e.g., when the rank of the Mordell-Weil group is greater than 1. We apply our results along with a computer calculation to show that X(E/Q)[p] = 0 for the 1,534,422 pairs (E, p) consisting of a non-CM elliptic curve E over Q with conductor ≤ 30,000, rank ≥ 2, and good ordinary primes p with 5 ≤ p < 1000 and surjective mod-p representation.
Trauma in Resettled Iraqi Refugees: Differences between Those Seeking Psychological Treatment and Those Not Seeking Psychological Treatment

Psychological distress experienced by resettling refugees has been well documented, with posttraumatic stress disorder (PTSD) and depression being prevalent outcomes. This study examined psychological and physiological measures of trauma exposure in 2 groups of Iraqi refugees resettled in Australia, those seeking psychological treatment (n = 25) versus those not seeking treatment (n = 22). Data from a group of healthy sex- and age-matched controls (n = 32) were collected to facilitate norm comparisons for physiological arousal. Continuous recording of electrocardiogram data examined resting heart rate (HR). Refugees seeking treatment had significantly higher levels of PTSD symptomology and depression levels compared to non-treatment-seeking refugees; however, there was no difference in the number of trauma events endorsed. Finally, resting HR was significantly higher in both refugee groups compared with healthy controls; however, there was no difference between the refugee groups. Clinical consideration of this excessive trauma exposure and elevated autonomic arousal is warranted.
Effects of intraperitoneally‐administered vitamin E and selenium on the blood biochemical and haematological parameters in rats

The aim of this work was to determine the role of intraperitoneally‐administered vitamin E and selenium on the biochemical and haematological parameters in the blood of rats. Thirty‐two adult male Wistar rats were used in this study. All rats were randomly divided into four groups. The first group was used as the control. The second group was intraperitoneally administered with vitamin E (±‐α‐tocopheroryl acetate, 10 mg day−1), the third group with Se (Na2SeO3 0·2 mg over a day), and the fourth group with vitamin E and Se (vitamin E 10 mg + Na2SeO3 0·2 mg over a day). This administration was done for 5 weeks. Blood samples were taken from animals at the end of the dosage period and biochemical parameters in serum samples and haematological parameters in total blood were determined. The levels of total cholesterol (p<0·01) and number of white blood cells (p<0·001) in blood were significantly higher in the vitamin E group than in the control group. The levels of ALP, total cholesterol (p<0·01) and number of white blood cells (p<0·01) in blood were significantly higher in the selenium group than in the controls. The levels of glucose (p<0·05), ALP (p<0·01), total cholesterol (p<0·001) and number of white blood cells (p<0·01) were higher in the vitamin E and selenium combined group than in the controls. Other parameters considered within this trial (ALT, LDH, creatinine, albumin, total protein, amylase, creatine kinase, HDL, triglycerides, total lipid, sodium, chloride, uric acids, red blood cell, haemoglobin, packed cell volume, MCV, MCH, MCHC) did not show statistically significant differences between the control and injected groups. The results indicated that blood glucose and total cholesterol levels, ALP activity and white blood cell counts were significantly increased by intraperitoneal administration of vitamin E and selenium in rats. Copyright © 1999 John Wiley & Sons, Ltd.
IV. Parental Personality and Attitude and Childhood Psychoses

It is a common assumption in child psychiatry that the personality and attitudes of parents exert a fundamental influence on the developing child. This hypothesis merits careful examination. The authors were particularly interested in testing it in relation to aberrant personalities and undeniable psychiatric disorder in childhood. Theoretically there are two main methodological steps; (i) The proving of a correlation between parental and childhood variables. The present paper concentrates on this step. (ii) experimental or other studies to demon strate causal relationships between these variables.
The ISEE Electron Density Experiment

The French electron density experiment aboard the ISEE 1 and 2 satellites really consists of two separate, but complementary, experiments to measure the total electron density by means of radio techniques. Both experiments are new: one flew above the ionosphere for the first time on the satellite GEOS, launched in April 1977, while the other takes advantage of the unique ISEE feature of having two spacecraft which are always relatively close together. The principles and the realization of both experiments are described.