Miracle-dz/UniFAR-FTUs huggingface dataset:
New probabilistic approaches to the AX = XB hand-eye calibration without correspondence

The hand-eye calibration problem was first formulated decades ago and is widely applied in robotics, image guided therapy, etc. It is usually cast as the “AX = XB” problem where the matrices A, B, and X are rigid body transformations in SE(3). Many solvers have been proposed to recover X given data streams {Ai} and {Bi} with correspondence. However, exact correspondence might not be accessible in the real world due to the asynchronous sensors and missing data, etc. A probabilistic approach named “Batch method” was introduced in previous research of our lab, which doesn't require a prior knowledge of the correspondence between the two data streams {Ai} and {Bj}. Analogous to non-probabilistic approaches which require data selection to filter out ill-conditioned data pairs, the Batch method has restrictions on the data set {Ai} and {Bj} that can be used. We propose two new probabilistic approaches built on top of the Batch method by giving new definitions of the mean on SE(3), which alleviate the restrictions on the data set and significantly improve the calibration accuracy of X.
Waist Circumference as Measure of Abdominal Fat Compartments

This study examines intercorrelations among waist circumference (WC), intraperitoneal fat (IPF), and subcutaneous abdominal fat (SAF) in ethnically diverse Dallas Heart Study consisting of 1538 women and 1212 men (50% Black). Correlations between fat depots and triglyceride or HOMA2-IR, biomarkers of metabolic syndrome, are also reported. Total abdominal fat (TAF), ASF, and IPF masses were measured by magnetic resonance imaging. The highest correlations with WC according to ethnicity and gender were noted for TAF (R 2 = 0.81 − 0.88) with progressively lower correlations with ASF (0.65–0.82) and IPF (0.29–0.85). The percentage of IPF relative to TAF was not significantly correlated with WC. For all WC categories, higher IPF/ASF ratios were associated with higher triglyceride levels. In contrast, differences in ratios had little or no association with HOMA2-IR. However, when all data were pooled, IPF was positively correlated with both triglyceride (r = 0.358 (men) and 0.363 (women)) and HOMA2-IR (r = 0.480 (men) and 0.517 (women)); after adjustment for ASF, IPF was still correlated with triglyceride (r = 0.353 (men) and 0.348 (women)) and HOMA2-IR (r = 0.290 (men) and 0.221 (women)). WC measures TAF reliably, but its association with IPF depends on IPF/ASF ratios that vary by gender and ethnicity.
The effects of level of automation and adaptive automation on human performance, situation awareness and workload in a dynamic control task

This paper extends previous research on two approaches to human-centred automation: (1) intermediate levels of automation (LOAs) for maintaining operator involvement in complex systems control and facilitating situation awareness; and (2) adaptive automation (AA) for managing operator workload through dynamic control allocations between the human and machine over time. Some empirical research has been conducted to examine LOA and AA independently, with the objective of detailing a theory of human-centred automation. Unfortunately, no previous work has studied the interaction of these two approaches, nor has any research attempted to systematically determine which LOAs should be used in adaptive systems and how certain types of dynamic function allocations should be scheduled over time. The present research briefly reviews the theory of human-centred automation and LOA and AA approaches. Building on this background, an initial study was presented that attempts to address the conjuncture of these two approaches to human-centred automation. An experiment was conducted in which a dual-task scenario was used to assess the performance, SA and workload effects of low, intermediate and high LOAs, which were dynamically allocated (as part of an AA strategy) during manual system control for various cycle times comprising 20, 40 and 60% of task time. The LOA and automation allocation cycle time (AACT) combinations were compared to completely manual control and fully automated control of a dynamic control task performed in conjunction with an embedded secondary monitoring task. Results revealed LOA to be the driving factor in determining primary task performance and SA. Low-level automation produced superior performance and intermediate LOAs facilitated higher SA, but this was not associated with improved performance or reduced workload. The AACT was the driving factor in perceptions of primary task workload and secondary task performance. When a greater percentage of primary task time was automated, operator perceptual resources were freed-up and monitoring performance on the secondary task improved. Longer automation cycle times than have previously been studied may have benefits for overall human–machine system performance. The combined effect of LOA and AA on all measures did not appear to be ‘additive’ in nature. That is, the LOA producing the best performance (low level automation) did not do so at the AACT, which produced superior performance (maximum cycle time). In general, the results are supportive of intermediate LOAs and AA as approaches to human-centred automation, but each appears to provide different benefits to human–machine system performance. This work provides additional information for a developing theory of human-centred automation.
Using Wikipedia to Validate the Terminology found in a Corpus of Basic Textbooks

A scientific vocabulary is a set of terms that designate scientific concepts. This set of lexical units can be used in several applications ranging from the development of terminological dictionaries and machine translation systems to the development of lexical databases and beyond. Even though automatic term recognition systems exist since the 80s, this process is still mainly done by hand, since it generally yields more accurate results, although not in less time and at a higher cost. Some of the reasons for this are the fairly low precision and recall results obtained, the domain dependence of existing tools and the lack of available semantic knowledge needed to validate these results. In this paper we present a method that uses Wikipedia as a semantic knowledge resource, to validate term candidates from a set of scientific text books used in the last three years of high school for mathematics, health education and ecology. The proposed method may be applied to any domain or language (assuming there is a minimal coverage by Wikipedia).
Why Don’t More Black Americans Offend? Testing a Theory of African American Offending’s Ethnic-Racial Socialization Hypothesis

Criminology is replete with research on the correlates of African American offending, yet theorizing efforts have lagged. Unnever and Gabbidon recently proposed a Theory of African American Offending, an integrated explanation of African Americans’ risks for and resilience to offending. Many of the theory’s hypotheses remain untested, especially its major claim that positive ethnic-racial socialization is the main reason more Black Americans do not offend. The theory argues that positive ethnic-racial socialization inhibits African American offending by attenuating the criminogenic effect of weak social bonds. Using data from a prospective, longitudinal cohort of African Americans from the Woodlawn Project, we test whether these postulations hold for adolescent delinquency and adult offending and find general support: Positive ethnic-racial socialization buffers the effect of weak school bonds on adolescent substance use and adult offending for males, but not females, across most crime types. Advancing criminological discourse on race, offending, and resilience, this study has implications for broader criminological theorizing and crime-reduction efforts.
Congenital Erythropoietic Porphyria : Identification and Expression of 10 Mutations in the Uroporphyrinogen III Synthase Gene

To investigate the molecular basis of the phenotypic hetero-geneity in congenital erythropoietic porphyria, the mutations in the uroporphyrinogen m synthase gene from unrelated patients were determined. Six missense (L4F, Y19C, V82F, V99A, A104V, and G225S), a nonsense (Q249X), a frameshift (633insA), and two splicing mutations (IVS2+ and IVS9AA+4) were identified. in Eseherichia cok, only the V82F, V99A, and A104V alleles expressed residual enzymatic activity. Of note, the V82F mutation, which occurs adjacent to the 5' donor site of intron 4, resulted in-54% aberrantly spliced transcripts with exon 4 deleted. Thus, this novel exonic single-base substitution caused two lesions, a missense mutation and an aberrantly spliced transcript. Of the splicing mutations, the IVS2+1 allele produced a single transcript with exon 2 deleted , whereas the IVS9AA+4 allele was alternatively spliced,-26% being normal transcripts and the remainder with exon 9 deleted. The amount of residual activity expressed by each allele provided a basis to correlate genotype with disease severity, thereby permitting genotype/phenotype predictions in this clinically heterogeneous disease. (J. Clin.
MENGEMBANGKAN PROFESIONALISME GURU-GURU IPA SMP N 1 SINGARAJA MELALUI PENDAMPINGAN LESSON STUDY

Tujuan dari kegiatan ini adalah melakukan pendampingan pelaksanaan pembelajaran dengan pola lesson study bagi guru IPA di SMP N 1 Singaraja. Dalam kegiatan ini yang menjadi prioritas adalah membantu guru dalam penyusunan lesson design dan proses refleksi pembelajaran lesson study. Pelaksanaan kegiatan ini yaitu melakukan pendampingan guru model yang dipilih dalam melaksanakan pembelajaran lesson study . Pendampingan dilaksanakan tiga siklus pada mata pelajaran IPA di Kelas VIII SMP N 1 Singaraja, yang mana masing-masing siklus terdiri dari tiga tahapan yaitu : plan , do , dan see. Adapun jumlah guru yang terlibat sebanyak 1 orang yang bertindak sebagai guru model dan 1 orang kepala sekolah sebagai observer. Sedangkan tim lesson study berasal dari Fakultas Ilmu Pendidikan Universitas Pendidikan Ganesha yang terdiri dari 6 orang dosen dimana 2 dosen adalah tim pelaksana kegiatan. Berdasarkan hasil pendampingan lesson study yang dilaksanakan sebanyak tiga siklus, terdapat peningkatan yang signifikan kualitas pembelajaran IPA yang diselenggarakan guru model. Hal ini terlihat dari kemampuan guru dalam melakukan persiapan pembelajaran dan pelaksanaan pembelajaran merujuk pada lembar observasi lesson study yang dikembangkan. Berdasarkan hasil refleksi di tiap siklus menunjukkan peningkatan yang signifikan dilihat dari ketercapaian tujuan pembelajaran yang dirumuskan pada tahap lesson study sebelumnya. Ini menunjukkan bahwa kegiatan pendampingan pola pembelajaran lesson study bagi guru IPA SMP N 1 Singaraja mampu meningkatkan kompetensi pedagogik guru model dan bermuara pada peningkatan kualitas pembelajaran IPA itu sendiri.
Professional Personae - How Organizational Identification Shapes Online Identity in the Workplace

As organizations become increasingly mediatized, the roles of professionals are reshaped and negotiated, and the boundaries between professional and private relationships are blurred. In this context, the extent to which one identifies with his or her organization might play an important role. This paper investigates how professionals construct their digital identities on social media sites, focusing in particular on their willingness to overlap private and work profiles to create a univocal online persona. Based on a sample of 679 communication and marketing managers, the paper analyzes the self-representational choices of professionals and demonstrates how organizational identification influences professionals' tendency to combine their domains under one online persona, and their confidence to use social media in a professional context.
Racing to the top: descent ideologies and why Ladinos never meant to be mestizos in colonial Guatemala

ABSTRACT This paper asks what mestizaje as presently conceived could have meant in colonial Latin America before modern notions of race, nation, state, or culture. It explores the term ladino in contemporary Chiapas and Guatemala that refers to people of mixed descent who identify as ‘not Indian. ’ More than a substitute for mestizo, ladino represents a descent ideology that stresses parentage over race in pursuit of relative advantage within a stratified, postconquest society. This descent ideology in turn derives from the ‘republics’ of Spaniards and Indians – and African slaves – in colonial Guatemala, and post-Reconquest Iberian ideals of ‘purity of blood’ based on, not race, but legitimate birth to a Christian family going back to before the Muslim conquest of Spain. The vagaries of genealogical reckoning inherent in descent ideologies help to rationalize why from the bottom up ‘mestizo’ identities came to depend as much on behavior as appearance, and from the top down, they provoked blanket phenotypic exclusions that eventually, but not primordially, found validation in biologized conceptions of race.
Impact of Bilayer Lipid Composition on the Structure and Topology of the Transmembrane Amyloid Precursor C99 Protein

C99 (also known as β-CTF) is the 99 residue transmembrane C-terminal domain (residues 672–770) of the amyloid precursor protein and is the immediate precursor of the amyloid-β (Aβ) polypeptides. To test the dependence of the C99 structure on the composition of the host model membranes, NMR studies of C99 were conducted both in anionic lyso-myristoylphosphatidylglycerol (LMPG) micelles and in a series of five zwitterionic bicelle compositions involving phosphatidylcholine and sphingomyelin in which the acyl chain lengths of these lipid components varied from 14 to 24 carbons. Some of these mixtures are reported for the first time in this work and should be of broad utility in membrane protein research. The site-specific backbone 15N and 1H chemical shifts for C99 in LMPG and in all five bicelle mixtures were seen to be remarkably similar, indicating little dependence of the backbone structure of C99 on the composition of the host model membrane. However, the length of the transmembrane span was seen to vary in a manner that alters the positioning of the γ-secretase cleavage sites with respect to the center of the bilayer. This observation may contribute to the known dependency of the Aβ42-to-Aβ40 production ratio on both membrane thickness and the length of the C99 transmembrane domain.
Population attributable fraction of infection-related cancers in Korea.

BACKGROUND A number of infectious agents have been classified as human carcinogens. The purpose of the current study was to provide an evidence-based assessment of the burden of infection-related cancers in the Korean population. MATERIALS AND METHODS The population attributable fraction was calculated using infection prevalence data from 1990 or earlier, relative risk estimates from meta-analyses using mainly Korean studies and national data on cancer incidence and mortality for the year 2007. RESULTS The fractions of all cancers attributable to infection were 25.1% and 16.8% for cancer incidence in men and women, and 25.8% and 22.7% of cancer mortality in men and women, respectively. Among infection-related cancers, Helicobacter pylori was responsible for 56.5% of cases and 45.1% of deaths, followed by hepatitis B virus (HBV) (23.9% of cases and 37.5% of deaths) and human papillomavirus (HPV) (11.3% of cases and 6% of deaths) and then by hepatitis C virus (HCV) (6% of cases and 9% of deaths). Over 97% of infection-related cancers were attributable to infection with H. pylori, HBV, HCV and HPV. CONCLUSION Up to one-quarter of cancer cases and deaths would be preventable through appropriate control of infectious agents in Korea.
A Circa 2010 Thirty Meter Resolution Forest Map for China

Abstract: This study examines the suitability of 30 m Landsat Thematic Mapper (TM), 250 m time-series Moderate Resolution Imaging Spectrometer (MODIS) Enhanced Vegetation Index (EVI) and other auxiliary datasets for mapping forest extent in China at 30 m resolution circa 2010. We calculated numerous spectral features, EVI time series, and topographical features that are helpful for forest/non-forest distinction. In this research, extensive efforts have been made in developing training samples over difficult to map or complex regions. Scene by scene quality checking was done on the initial forest extent results and low quality results were refined until satisfactory. Based on the forest extent mask, we classified the forested area into 6 types (evergreen/deciduous broadleaf, evergreen/deciduous needleleaf, mixed forests, and bamboos). Accuracy assessment of our forest/non-forest classification using 2195 test sample units independent of the training sample indicates that the producer’s accuracy (PA) and user’s accuracy (UA) are 92.0% and 95.7%, respectively. According to this map, the total forested area in China was
Binocular saccade coordination in reading and visual search: a developmental study in typical reader and dyslexic children

Studies dealing with developmental aspects of binocular eye movement behavior during reading are scarce. In this study we have explored binocular strategies during reading and visual search tasks in a large population of dyslexic and typical readers. Binocular eye movements were recorded using a video-oculography system in 43 dyslexic children (aged 8–13) and in a group of 42 age-matched typical readers. The main findings are: (i) ocular motor characteristics of dyslexic children are impaired in comparison to those reported in typical children in reading task; (ii) a developmental effect exists in reading in control children, in dyslexic children the effect of development was observed only on fixation durations; and (iii) ocular motor behavior in the visual search tasks is similar for dyslexic children and for typical readers, except for the disconjugacy during and after the saccade: dyslexic children are impaired in comparison to typical children. Data reported here confirms and expands previous studies on children’s reading. Both reading skills and binocular saccades coordination improve with age in typical readers. The atypical eye movement’s patterns observed in dyslexic children suggest a deficiency in the visual attentional processing as well as an impairment of the ocular motor saccade and vergence systems interaction.
Visual Cognitive Adventures of Single Neurons in the Human Medial Temporal Lobe

Here we summarize some of the work examining visual cognition through recordings of single neurons in the human medial temporal lobe (MTL). These recordings were performed in patients with pharmacologically intractable epilepsy as part of the procedure to determine the seizure focus for surgical resection (as described in chapter 3). These surgical procedures provide a rare opportunity to listen to the activity of neural circuits in the human brain while subjects are awake and perform different types of cognitive tasks (Ojemann, 1997; Crick et al., 2004; Engel et al., 2005; Kreiman, 2007; Mukamel & Fried, 2012; Suthana et al., 2012). Throughout this chapter, we emphasize some of the opportunities, challenges and solutions, and progress and open questions, as well as some of the scientific and clinical implications of the work.
A continuum three-dimensional, fully coupled, dynamic, non-linear finite element formulation for magnetostrictive materials

Magnetostriction is a phenomenon observed in all ferromagnetic materials. It couples elastic, electric, magnetic and in some situations also thermal fields and is of great industrial interest for use in sensors, actuators, adaptive or functional structures, robotics, transducers and MEMS. In this work, the governing equations of the three-field problem (i.e., the interactions of elastic, electric and magnetic effects) are formulated in three dimensions, accounting for non-linear (through magnetic body forces represented by the Maxwell tensor) and dynamic effects, and with constitutive equations resembling those of piezoelectricity. Through manipulation of Maxwell equations it is possible to find suitable expressions for developing the numerical weak, Galerkin and matrix forms in a natural way, including seven residuals (one for each nodal degree of freedom) and non-symmetric tangent, ‘capacity’ and mass consistent matrices. Simple backward Euler and central difference schemes can be used for the time domain integration. The only assumption made in this work for simplification is that the time variation of electric induction is negligible. This is justified by the relatively low frequencies ( GHz) under which magnetostrictive materials usually work. The principal feature of the equations is the use of a magnetic potential (without much physical meaning) that allows a complete ‘displacement’ finite element formulation: all elastic, electric and magnetic nodal unknowns are zero derivatives. This allows the algorithm to be treated in a standard way, and important effects such as eddy currents can be obtained naturally. The formulation is implemented in the research finite element code FEAP. Although seven degrees of freedom per node is computer expensive to solve (especially for 3D problems), the current trend in the performance of computers, even personal ones, makes it worthwhile to build complete finite elements following the well-established (in mechanics) Bubnov–Galerkin procedures. The paper closes with a simple one-dimensional example for purposes of numerical validation.
2016 Ieee International Conference on Big Data (big Data) Large-scale Taxonomy Categorization for Noisy Product Listings

—E-commerce catalogs include a continuously growing number of products that are constantly updated. Each item in a catalog is characterized by several attributes and identified by a taxonomy label. Categorizing products with their taxonomy labels is fundamental to effectively search and organize listings in a catalog. However, manual and/or rule based approaches to categorization are not scalable. In this paper, we compare several classifiers to product taxonomy categorization of top-level categories. We first investigate a number of feature sets and observe that a combination of word unigrams from product names and navigational breadcrumbs work best for categorization. Secondly, we apply correspondence topic models to detect noisy data and introduce a lightweight manual process to improve dataset quality. Finally, we evaluate linear models, gradient boosted trees (GBTs) and convolutional neural networks (CNNs) with pre-trained word embeddings demonstrating that, compared to other baselines, GBTs and CNNs yield the highest gains in error reduction.