gebhart/patrepeval huggingface dataset:
Batch-efficient EigenDecomposition for Small and Medium Matrices (2022)

EigenDecomposition (ED) is at the heart of many computer vision algorithms and applications. One crucial bottleneck limiting its usage is the expensive computation cost, particularly for a mini-batch of matrices in the deep neural networks. In this paper, we propose a QR-based ED method dedicated to the application scenarios of computer vision. Our proposed method performs the ED entirely by batched matrix/vector multiplication, which processes all the matrices simultaneously and thus fully utilizes the power of GPUs. Our technique is based on the explicit QR iterations by Givens rotation with double Wilkinson shifts. With several acceleration techniques, the time complexity of QR iterations is reduced from $O{(}n^5{)}$ to $O{(}n^3{)}$. The numerical test shows that for small and medium batched matrices (\emph{e.g.,} $dim{&lt;}32$) our method can be much faster than the Pytorch SVD function. Experimental results on visual recognition and image generation demonstrate that our methods also achieve competitive performances.
Gaze Awareness in Agent-Based Early-Childhood Learning Application (2017)

Use of technological devices for early childhood learning is increasing. Now, kindergarten and primary school children use interactive applications on mobile phones and tablet computers to support and complement classroom learning. With increase in cognitive technologies, there is further potential to make such applications more engaging by understanding the user context. In this paper, we present the Little Bear, a gaze aware pedagogical agent, that tailors its verbal and non-verbal behavior based on the visual attention of the child and employs means to reorient the attention of the child, when distracted from the learning activity. We used the Little Bear agent in a learning application to enable teaching the vocabulary of everyday fruits and vegetables. Our user-study (n = 12) with preschoolers shows that children interacted longer and showed improved short-term retention of the vocabulary using the gaze aware agent compared to a baseline touch-based application. Our results demonstrate the potential of gaze aware application design for early childhood learning.
Second-Order Directional Seas and Associated Wave Forces (1981)

Abstract Most methods for wave force computation incorporate either the nonlinearities of the ocean surface for a single fundamental component or the random and/or directional characteristics using superposition of linear wave components. One exception is the intuitive "hybrid" method1 which combines elements of linear and nonlinear waves. This paper describes and applies a method correct to the second order in wave height for calculating waves and wave forces caused by a directional wave spectrum on an offshore structure. Starting with a prescribed linear spectrum of directional waves, a set of random phases is generated and the second-order spectrum computed with phases defined by all contributing pairs of first-order components. Thus, with one realization of the spectrum complete up to the second order, the wave profile and water particle kinematics can be simulated in the time domain. The wave forces also are computed in the time domain, taking full account of their nonlinear and directional properties. The resulting wave forces at any level vary in direction and magnitude. The total wave forces summed over all piling of a structure are less than those for a unidirectional train of waves with the same one-dimensional spectrum. Several examples are presented to illustrate reductions in maximum wave forces caused by the directional distribution of waves. We found that for a single piling the maximum force decreases by a factor ranging from 1.0 to 0.61 as the directional spread increases from unidirectional to uniformity over a half plane. For a four-pile group on a square array of 300-ft (91.4-m) spacing, the corresponding decrease in the factor is 1.0 to 0.51 for a Bret-schneider spectrum with a peak period of approximately 12 seconds. The results of this complete model are compared with the more intuitive and approximate hybrid method and are found to agree quite well. Force spectra are presented and discussed for the inline and transverse directions.
Course Keeping Control of Automatic Operation Boat with Constraints for Aquaculture (2018)

For the even bait casting in the course keeping control for automatic operation boat, the specified constraints of heading angle error and yaw velocity are required with the ability to restrain the external disturbances caused by wind and current. In order to tackle the multiple constraints and disturbances in the course keeping control, a novel finite time control method is proposed based on the barrier Lyapunov function (BLF), such that the upper constraints of heading angle error and yaw velocity can be guaranteed with disturbances restrained. Firstly, the state space model for the course keeping of the aquacultural operation boat is established, and then the strict feedback form can be obtained. Subsequently, the control laws of finite time and dynamic surface are designed. Based on Lyapunov's direct methods, the designed system can be guaranteed semi-global uniformly ultimately bounded with the enhanced ability to restrain the disturbances. Lastly, the simulation results have verified the stability effectiveness of the proposed control method. The control performance has been significantly improved with the consideration of constraints and external disturbances in the course keeping control for the operation boat.
The two clock proteins CCA1 and LHY activate VIN3 transcription during vernalization through the vernalization-responsive cis-element (2021)

Vernalization, a long-term cold-mediated acquisition of flowering competence, is critically regulated by VERNALIZATION INSENSITIVE 3 (VIN3), a gene induced by vernalization in Arabidopsis. Although the function of VIN3 has been extensively studied, how VIN3 expression itself is upregulated by long-term cold is not well understood. In this study, we identified a vernalization-responsive cis-element in the VIN3 promoter, VREVIN3, composed of a G-box and an evening element (EE). Mutations in either the G-box or the EE prevented VIN3 expression from being fully induced upon vernalization, leading to defects in the vernalization response. We determined that the core clock proteins CIRCADIAN CLOCK-ASSOCIATED 1 (CCA1) and LATE-ELONGATED HYPOCOTYL (LHY) associate with the EE of VREVIN3, both in vitro and in vivo. In a cca1 lhy double mutant background harboring a functional FRIGIDA allele, long-term cold-mediated VIN3 induction and acceleration of flowering were impaired, especially under mild cold conditions such as at 12°C. During prolonged cold exposure, oscillations of CCA1/LHY transcripts were altered, while CCA1 abundance increased at dusk, coinciding with the diurnal peak of VIN3 transcripts. We propose that modulation of the clock proteins CCA1 and LHY participates in the systems involved in sensing long-term cold for the activation of VIN3 transcription.
Intelligent Portrait Composition Assistance (2017)

Retrieving photography ideas corresponding to a given location facilitates the usage of smart cameras, where there is a high interest among amateurs and enthusiasts to take astonishing photos at anytime and in any location. Existing research captures some aesthetic techniques and retrieves useful feedbacks based on one technique. However, they are restricted to a particular technique and the retrieved results have room to improve as they are confined to the quality of the query. There is a lack of a holistic framework to capture important aspects of a given scene and help a novice photographer by informative feedback to take a better shot in his/her photography adventure. This work proposes an intelligent framework of portrait composition using our deep-learned models and image retrieval methods. A highly-rated web-crawled portrait dataset is exploited for retrieval purposes. Our framework detects and extracts ingredients of a given scene representing as a correlated semantic model. It then matches extracted semantics with the dataset of aesthetically composed photos to investigate a ranked list of photography ideas, and gradually optimizes the human pose and other artistic aspects of the composed scene supposed to be captured. The conducted user study demonstrates that our approach is more helpful than other feedback retrieval systems.
Optimization-based non-cooperative spacecraft pose estimation using stereo cameras during proximity operations (2017)

Pose estimation for spacecraft is widely recognized as an important technology for space applications. Many space missions require accurate relative pose between the chaser and the target spacecraft. Stereo-vision is a usual mean to estimate the pose of non-cooperative targets during proximity operations. However, the uncertainty of stereo-vision measurement is still an outstanding issue that needs to be solved. With binocular structure and the geometric structure of the object, we present a robust pose estimation method for non-cooperative spacecraft. Because the solar panel can provide strict geometry constraints, our approach takes the corner points of which as features. After stereo matching, an optimization-based method is proposed to estimate the relative pose between the two spacecraft. Simulation results show that our method improves the precision and robustness of pose estimation. Our system improves the performance with maximum 3D localization error less than 5% and relative rotation angle error less than 1°. Our laboratory experiments further validate the method.
Circulating MicroRNA Biomarkers in Melanoma: Tools and Challenges in Personalised Medicine (2018)

Effective management of melanoma depends heavily on early diagnosis. When detected in early non-metastatic stages, melanoma is almost 100% curable by surgical resection, however when detected in late metastatic stages III and IV, 5-year survival rates drop to ~50% and 10⁻25%, respectively, due to limited efficacy of current treatment options. This presents a pressing need to identify biomarkers that can detect patients at high risk of recurrence and progression to metastatic disease, which will allow for early intervention and survival benefit. Accumulating evidence over the past few decades has highlighted the potential use of circulating molecular biomarkers for melanoma diagnosis and prognosis, including lactate dehydrogenase (LDH), S100 calcium-binding protein B (S100B) and circulating tumor DNA (ctDNA) fragments. Since 2010, circulating microRNAs (miRNAs) have been increasingly recognised as more robust non-invasive biomarkers for melanoma due to their structural stability under the harsh conditions of the blood and different conditions of sample processing and isolation. Several pre-analytical and analytical variables challenge the accurate quantification of relative miRNA levels between serum samples or plasma samples, leading to conflicting findings between studies on circulating miRNA biomarkers for melanoma. In this review, we provide a critical summary of the circulating miRNA biomarkers for melanoma published to date.
Femtosecond Spectral Interferometry of Resonant Secondary Emission from Quantum Wells: Resonance Rayleigh Scattering in the Nonergodic Regime (1998)

We report the first investigation of resonant secondary emission from quantum well excitons using ultrafast spectral interferometry. Observation of high-contrast spectral fringes demonstrates a significant phase correlation of the spectral components of the Rayleigh scattered light and allows us to determine the temporal dynamics of the coherent emission. The results contradict the present theories for resonant Rayleigh scattering based on ensemble averaging, and show the nonergodic nature of resonance Rayleigh scattering from semiconductor quantum wells.
Adipose Tissue Hypoxia in Obesity and Its Impact on Adipocytokine Dysregulation (2007)

Obesity is linked to a variety of metabolic disorders, such as insulin resistance and atherosclerosis. Dysregulated production of fat-derived secretory factors, adipocytokines, is partly responsible for obesity-linked metabolic disorders. However, the mechanistic role of obesity per se to adipocytokine dysregulation has not been fully elucidated. Here, we show that adipose tissue of obese mice is hypoxic and that local adipose tissue hypoxia dysregulates the production of adipocytokines. Tissue hypoxia was confirmed by an exogenous marker, pimonidazole, and by an elevated concentration of lactate, an endogenous marker. Moreover, local tissue hypoperfusion (measured by colored microspheres) was confirmed in adipose tissue of obese mice. Adiponectin mRNA expression was decreased, and mRNA of C/EBP homologous protein (CHOP), an endoplasmic reticulum (ER) stress-mediated protein, was significantly increased in adipose tissue of obese mice. In 3T3-L1 adipocytes, hypoxia dysregulated the expression of adipocytokines, such as adiponectin and plasminogen activator inhibitor type-1, and increased the mRNAs of ER stress marker genes, CHOP and GRP78 (glucose-regulated protein, 78 kD). Expression of CHOP attenuated adiponectin promoter activity, and RNA interference of CHOP partly reversed hypoxia-induced suppression of adiponectin mRNA expression in adipocytes. Hypoxia also increased instability of adiponectin mRNA. Our results suggest that hypoperfusion and hypoxia in adipose tissues underlie the dysregulated production of adipocytokines and metabolic syndrome in obesity.
Optical Suppression of Energy Barriers in Single Molecule-Metal Binding (2021)

Understanding the interactions between molecules and metal surfaces is of widespread importance in electrochemistry, sensing, medical imaging/targeting, molecular electronics and spintronics. Although many techniques have characterized the molecule-metal transient bonds, conflicting conclusions arise from their buried location and heterogeneity, while single-molecule probes are scarce. Confinement of optical fields to picometre length-scales around adatoms (termed picocavities [1] , Fig. 1a ) has enabled tip-enhanced and surface-enhanced Raman spectroscopies (TERS and SERS, Fig. 1e ) of single-molecules. However how adatoms change with molecule-metal interactions, with light (both key ingredients in photocatalysis), and how they link to picocavity formation in metal nanogaps is not understood.
Simultaneous electrokinetic and hydrodynamic injection and sequential stacking featuring sweeping for signal amplification following MEKC during the analysis of rapamycin (sirolimus) in serum samples (2018)

Simultaneous electrokinetic and hydrodynamic injection of rapamycin (sirolimus) with off-line and online sample preconcentration techniques and using MEKC has been studied. Compared to conventional hydrodynamic injection, a 168-fold improvement in the signal was obtained with a combination of simultaneous electrokinetic and hydrodynamic injectionand field enhanced sample injection in conjunction with a sweeping technique called sequential stacking featuring sweeping. However, the coupling of the developed electrophoretic method and solid-phase microextraction allowed the signal intensity to increase more than 231 times. In this approach, the injection of the sample at negative polarity (anode at the detector end) into the capillary and the MEKC separation was achieved within 5 min using an electrolyte (composed of 10 mM sodium tetraborate and 40 mM SDS) when ultraviolet (UV) detection was performed at 280 nm. Thus, by combining the application of the sequential stacking featuring sweeping supported by the solid-phase microextraction clean-up procedure, the detection limit (LOD) for rapamycin in a serum sample was significantly decreased, and was set at 25 ng/mL. The proposed combined simultaneous electrokinetic and hydrodynamic injection with field enhanced sample injection -sweeping technique following MEKC separation of sirolimus in human serum could be an effective tool in biomedical and clinical applications.
A genetic reporter of thermal stress defines physiologic zones over a defined temperature range (2004)

We define five unique cellular responses to thermal stress using a reporter construct generated using the stress-inducible promoter from the gene encoding a murine 70 kDa heat shock protein (Hsp70A.1) to express luciferase (luc). Thermal stress was delivered over a range of temperatures (42-68 degrees C) for 5 s to 20 min and luciferase activity was measured in live cells using a cooled CCD camera as a measure of reporter gene transcription. Reporter gene expression was assessed every 2 h for 10 h, and at 24 h post-stress. Expression patterns were validated for selected temperatures. A transition zone where cells lose the ability to produce light and beyond which >50% of cells die was observed to occur within a narrow (2.5 degrees C) temperature window. Although luc and hsp70 mRNA levels in this transition zone were high, there were reduced levels of Luc and Hsp70 protein and ATP levels. Cells treated at these temperatures recovered the ability to produce light in response to a secondary stress at 30 h. This Hsp70-luc reporter gene construct may be useful for defining zones of physiologic responses and assessing collateral thermal damage generated during treatment of biological tissue with lasers and other sources of heat.
Heart and iron deficiency anaemia in rats with renal insufficiency: The role of hepcidin (2008)

Low LV performance is associated with iron deficiency anaemia in rats with CKD. Furthermore, overproduction of HIF-1alpha and the activation of caspase-3 seem to be associated with iron deficiency and with inflammatory markers. Hepcidin seems to plays a key role in this mechanism.
Corporate Australia: Histories in Sound in the Oral History Collection in the State Library of New South Wales (2009)

Woolworths commemorated its 75th anniversary in 1999 and the company commissioned Jenny Hudson from 1994 to 1996 to conduct oral history interviews with members of staff from all levels of the organisation. From its beginning in 1924 Woolworths was dedicated to training everybody who was employed, fast-tracking those who showed particular promise and were destined for executive duties. This had the effect of creating a particular Woolworths culture and in addition ensured that many key members of staff stayed on in the organisation. Members of staff felt they had a particular loyalty amounting to family feeling for the organisation and frequently for each other, which contributed to the organisation's survival through good times and bad. The interviews, now held in the oral history collection in the State Library of New South Wales, contributed to James Murray's commemorative history, The Woolworths Way. A great Australian success story, 1924-1999, published by Focus Publishing Pty Ltd, Sydney, 1999.
Polonium: Organometallic Chemistry (2005)

Abstract The organometallic chemistry of polonium has received limited research effort. The element is very rare, and all of its isotopes are radioactive. Radioactivity causes rupture of the bonds between carbon and polonium. Also, because polonium is a heavy metal, chemical bonding to carbon is thermodynamically very weak. It is rare for an organometallic compound of polonium to be isolated in weighable quantities and characterized using the conventional techniques of organic chemistry. The identification of organopolonium compounds relies largely on chromatographic behavior and on the use of tellurium compounds having analogous chemical structures as reference compounds.
Perfect Permutation Codes with the Kendall's $\tau$-Metric (2013)

The rank modulation scheme has been proposed for efficient writing and\nstoring data in non-volatile memory storage. Error-correction in the rank\nmodulation scheme is done by considering permutation codes. In this paper we\nconsider codes in the set of all permutations on $n$ elements, $S_n$, using the\nKendall's $\\tau$-metric. We prove that there are no perfect\nsingle-error-correcting codes in $S_n$, where $n&gt;4$ is a prime or $4\\leq n\\leq\n10$. We also prove that if such a code exists for $n$ which is not a prime then\nthe code should have some uniform structure. We define some variations of the\nKendall's $\\tau$-metric and consider the related codes and specifically we\nprove the existence of a perfect single-error-correcting code in $S_5$.\nFinally, we examine the existence problem of diameter perfect codes in $S_n$\nand obtain a new upper bound on the size of a code in $S_n$ with even minimum\nKendall's $\\tau$-distance.\n
Ruthenium‐Catalyzed Heck‐Type Olefination and Suzuki Coupling Reactions: Studies on the Nature of Catalytic Species. (2004)

Abstract For Abstract see ChemInform Abstract in Full Text.
PATELLO-FEMORAL FUNCTION AFTER TOTAL KNEE ARTHROPLASTY: COMPARISON OF TWO POSTERIOR-STABILIZED DESIGNS (2006)

Introduction: Patello-femoral complications are a major problem after total knee arthroplasty (TKA). Purpose of the present study was to analyze patello-femoral complications and function after two different posterior-stabilized TKA designs (Optetrak 913 vs IB-II). Materials and Methods: This study was performed in two consecutive phases. In the first phase 1410 TKA’s performed by the senior author between 1994 and 1998 were considered for chart review. Within this period, the last 300 IB-II and the first 300 913 performed were analyzed for patello-femoral complication rate. In the second phase, of the 600 charts analyzed, two matched groups (50 patients each of IB-II and 913), were selected for a clinical (Knee Society score), functional (HSS Patellar score) and radiological assessment (AP, Lateral, Merchant, modified-wb Merchant views). Results: A lateral retinacular release was performed in 30% for the IB-II and 16% for the 913 (p=0.02). The following patello-femoral complications were encountered (phase-1): IB-II 913 Patellar clunk 3.5% 0.3% Dislocation 0% 0.3% Fracture 0% 0.3% Loosening 0% 0% Clinical results at follow-up (phase-2) did not show any significant difference between the two matched groups in terms of Knee and Function scores (p=0.7). Patellar score showed a higher rate of excellent and good results in the 913 group (88% vs 81%: p=.043). Anterior knee pain was only mild and activity related in 26% of the IB-II and 14% of the 913 (p=.025). In a multivariate regression analysis, radiographic patellar tilt, subluxation, and height, did not correlate with clinical outcomes, whilst bone-implant contact showed a trend towards a higher incidence of pain, particularly when associated with asymmetric patellar resection. Discussion: At an intermediate follow-up, the Optetrak 913 prostheses showed fewer complications and an improved patello-femoral function compared to the IB-II prosthesis.