Miracle-dz/UniFAR-FTUs huggingface dataset:
Next-best-scan planning for autonomous 3D modeling

We present a next-best-scan (NBS) planning approach for autonomous 3D modeling. The system successively completes a 3D model from complex shaped objects by iteratively selecting a NBS based on previously acquired data. For this purpose, new range data is accumulated in-the-loop into a 3D surface (streaming reconstruction) and new continuous scan paths along the estimated surface trend are generated. Further, the space around the object is explored using a probabilistic exploration approach that considers sensor uncertainty. This allows for collision free path planning in order to completely scan unknown objects. For each scan path, the expected information gain is determined and the best path is selected as NBS. The presented NBS approach is tested with a laser striper system, attached to an industrial robot. The results are compared to state-of-the-art next-best-view methods. Our results show promising performance with respect to completeness, quality and scan time.
Systemic lupus erythematosus of long duration.

The purpose of this paper is to present a case of systemic lupus erythematosus of many years' duration, exhibiting striking skin manifestations and several other interesting associated features. Report of Case A 51-year-old Negro woman was admitted to the United States Air Force Hospital, Lackland Air Force Base, Texas, in October, 1957, with blindness as her chief complaint. She was in good health until 1935, when she suffered severe generalized joint pains, diagnosed by her personal physician as arthritis. Since that time the arthritis has recurred intermittently. In 1941 the patient had a serious illness of several months' duration, manifested by a "rash" on the scalp, face, neck, chest, and arms. This was accompanied by aching of multiple joints, decreased vision, elevated temperature, and anemia. The patient observed that with exposure to sunlight the rash became more severe. Her condition improved gradually, with only mild recrudescences of the joint pains
Predicting temporal and spatial flood dynamics using a precalibrated model

: A large storm in December 1990 allowed the evaluation of flood predictions from a hydrologic model (TOPMODEL) that had been previously calibrated on the West Fork of Walker Branch Watershed, a gauged 37.5 ha catchment near Oak Ridge, Tennessee. The model predicts both hydrograph dynamics and the spatial distribution of overland flow using an index based on topography. Maximum extent of overland flow during the storm was determined from patterns of leaf litter removal from valley bottoms. Both the flood hydrograph and the extent of overland flow were accurately predicted using model parameters obtained from a three-month period of normal flow conditions during 1983.
Synthesizing structured doodle hybrids

Creating large sets of similar objects is a common problem in many Computer Graphics applications such as games, animation and illustration. Generally, cloning the objects is not a decent solution. The issue then boils down to creating objects that are similar, yet not identical to, existing ones. This issue has been recently tackled in Computer Graphics for 2D images [Risser et al. 2010] and 3D objects [Kalogerakis et al. 2012]. Based on a few given examples, an automatic algorithm outputs new objects that respect the above issue. In this paper, we propose an approach that deals with simple line-drawings, or doodles.
Carotid Artery Wall Thickness and Leukoaraiosis: Preliminary Results Using Multidetector Row CT Angiography

BACKGROUND AND PURPOSE: LA is a condition caused by chronic cerebral ischemia and it represents an independent risk for stroke. The purpose of this work was to determine whether CAWT studied by using MDCTA is correlated with LA and its severity. MATERIALS AND METHODS: Ninety-eight patients ≥60 years of age were retrospectively studied by using multidetector row CT. Supra-aortic vessel analysis and brain CT were performed in the same procedure. In each patient, CAWT was measured with an internal digital caliper, and the presence and severity of LA were assessed. Correlation coefficients by using Spearman statistics and ROC curves were calculated. A P value < . 05 was considered statistically significant. RESULTS: Measurements of the distal common CAWT ranged from 0.5 to 1.53 mm. A correlation between LA and increased CAWT was observed (Pearson correlation, 0.33; P < .001). On the basis of a threshold of 0.9 mm, an important statistical association between increased CAWT and LA (P < .0001) was found. With the same threshold, ROC curve analysis indicated a sensitivity of 55% and a specificity of 75% for LA. CONCLUSIONS: The results of this study show a statistically significant correlation between increased CAWT and LA (and its severity).
Effects of anodal and cathodal transcranial direct current stimulation combined with robotic therapy on severely affected arms in chronic stroke patients.

OBJECTIVE The purpose of this study was to examine the effects of combined therapy using transcranial direct current stimulation (tDCS) with robot-assisted arm training (AT) for impairment of the upper limb in chronic stroke patients, and to clarify whether differences exist in the effect of anodal tDCS on the affected hemisphere (tDCS(a) + AT) and cathodal tDCS on the unaffected hemisphere (tDCS(c) + AT). METHODS Subjects in this randomized, double-blinded, crossover study comprised 18 chronic stroke patients with moderate-to-severe arm paresis. Each patient underwent 2 different treatments: tDCS(a) + AT; and tDCS(c) + AT. Each intervention was administered for 5 days, and comprised AT with 1 mA of tDCS during the first 10 min. Outcomes were identified as changes in Fugl-Meyer Assessment (FMUL), modified Ashworth scale (MAS) and Motor Activity Log (MAL) for the upper limb. RESULTS Both interventions showed significant improvements in FMUL and MAS, but not in MAL. Distal spasticity was significantly improved with tDCS(c) + AT compared with tDCS(a) + AT for right hemispheric lesions (median -1 vs 0), but not for left hemispheric lesions. CONCLUSION Although this study demonstrated that combined therapy could achieve limited effects in the hemiplegic arm of chronic stroke patients, a different effect of polarity of tDCS was seen for patients with right hemispheric lesions.
tasiRNA-ARF Pathway Moderates Floral Architecture in Arabidopsis Plants Subjected to Drought Stress

In plants, miRNAs and siRNAs, such as transacting siRNAs (ta-siRNAs), affect their targets through distinct regulatory mechanisms. In this study, the expression profiles of small RNAs (smRNAs) in Arabidopsis plants subjected to drought, cold, and high-salinity stress were analyzed using 454 DNA sequencing technology. Expression of three groups of ta-siRNAs (TAS1, TAS2, and TAS3) and their precursors was downregulated in Arabidopsis plants subjected to drought and high-salinity stress. Analysis of ta-siRNA synthesis mutants and mutated ARF3-overexpressing plants that escape the tasiRNA-ARF target indicated that self-pollination was hampered by short stamens in plants under drought and high-salinity stress. Microarray analysis of flower buds of rdr6 and wild-type plants under drought stress and nonstressed conditions revealed that expression of floral development- and auxin response-related genes was affected by drought stress and by the RDR6 mutation. The overall results of the present study indicated that tasiRNA-ARF is involved in maintaining the normal morphogenesis of flowers in plants under stress conditions through fine-tuning expression changes of floral development-related and auxin response-related genes.
Automatic calibration of a resolver offset of permanent magnet synchronous motors for hybrid electric vehicles

In this paper, we consider the automatic calibration of resolver offset in a hybrid electric vehicle. This offset between a permanent magnet synchronous motor (PMSM) and its resolver results from manufacturing tolerance such as nonuniform windings in the motor, assembly tolerance, and so on. The resolver offset needs to be compensated for precise torque control of the PMSM. The suggested calibration method consists of two stages: the cooperative control between the motor controller and other vehicle component controllers, and the current control of the PMSM designed based on Lyapunov stability. The cooperative control sets up the specific condition of HEV under which the current control is performed. Then the offset is measured and calibrated at the steady state under the current control. The designed algorithm is verified by simulations.
Fast parallel association rule mining without candidacy generation

In this paper we introduce a new parallel algorithm MLFPT (multiple local frequent pattern tree) for parallel mining of frequent patterns, based on FP-growth mining, that uses only two full I/O scans of the database, eliminating the need for generating candidate items, and distributing the work fairly among processors. We have devised partitioning strategies at different stages of the mining process to achieve near optimal balancing between processors. We have successfully tested our algorithm on datasets larger than 50 million transactions.
Vacuum preloading consolidation of reclaimed land: a case study

This case study presents the design, operation, and results of a soil improvement project using the vacuum preloading method on 480 000 m2 of reclaimed land in Xingang Port, Tianjing, China. The areas treated with vacuum ranged from 5000 to 30 000 m2. The effects of soil improvement are demonstrated through the average consolidation settlement of 2.0 m and increases in undrained shear strengths by a factor of two to four or more. The study shows that the vacuum method is an effective tool for the consolidation of very soft, highly compressive clayey soils over a large area. The technique is especially feasible in cases where there is a lack of surcharge loading fills, extremely low shear strength, soft ground adjacent to critical slopes, and access to a power supply.Key words: vacuum preloading consolidation, soil improvement, soft clays, land reclamation, prefabricated vertical drains.
The nighttime production of OH radicals in the continental troposphere

Chemical pathways involved in the nocturnal production of hydroxyl radical (OH) and associated peroxy radicals (HO2 and RO2) are quantified for various environmental situations of the continental troposphere by means of numerical simulations. In the nocturnal stable layer, most of the OH radicals are directly produced by VOC+O3 reactions in rural and semipolluted environments while in urban environments, they result mainly from the radical chain propagation from RO2 and HO2. The radical propagation is mainly driven by NO: the nitrate radical (NO3) plays no role in such processes but is significantly involved in the direct formation of RO2 radicals. Above the nocturnal stable layer, whatever the environmental situation, OH radicals are mainly due to radical chain propagation in which NO3 plays a significant role. The nighttime simulated OH concentrations are 3 × 104 to 5 × 105 and 1 × 104 to 5 × 104 molec cm−3 for the nocturnal stable and residual layers respectively.
Convective Building of a Pycnocline: Laboratory Experiments

Abstract The convective building of a pycnocline is examined using a laboratory model forced by surface fluxes of saline water at one end and fresh water at the other. A deep recirculation evolves in the tank, which homogenizes the interior fluid by repeated passes through the dense, descending plume. A thin, fresh surface layer develops and modifies the effective buoyancy flux into the dense plume, causing the interior velocities to fall to an intermediate-time minimum. Adding bottom topography under the dense source greatly reduces the amount of entrainment that the descending plume undergoes. In this case, the tank fills with a deep, heavy layer, which causes the plume to “lift off” the bottom of the tank and detrain at successively higher depths in the water column. A simple numerical “plume” model shows that this cannot be a steady state, as it is not in diffusive balance; the plume must eventually return to the bottom of the tank and ventilate the interior waters. Adding rotation increases the surfa.
Inhibition of Transforming Growth Factor-&bgr; Attenuates Brain Injury and Neurological Deficits in a Rat Model of Germinal Matrix Hemorrhage

Background and Purpose— Transforming growth factor-&bgr; (TGF-&bgr;) overproduction and activation of the TGF-&bgr; pathway are associated with the development of brain injury following germinal matrix hemorrhage (GMH) in premature infants. We examined the effects of GMH on the level of TGF-&bgr;1 in a novel rat collagenase-induced GMH model and determined the effect of inhibition of the TGF receptor I. Methods— In total, 92 seven-day old (P7) rats were used. Time-dependent effects of GMH on the level of TGF-&bgr;1 and TGF receptor I were evaluated by Western blot. A TGF receptor I inhibitor (SD208) was administered daily for 3 days, starting either 1 hour or 3 days after GMH induction. The effects of GMH and SD208 on the TGF-&bgr; pathway were evaluated by Western blot at day 3. The effects of GMH and SD208 on cognitive and motor function were also assessed. The effects of TGF receptor I inhibition by SD208 on GMH-induced brain injury and underlying molecular pathways were investigated by Western blot, immunofluorescence, and morphology studies 24 days after GMH. Results— GMH induced significant delay in development, caused impairment in both cognitive and motor functions, and resulted in brain atrophy in rat subjects. GMH also caused deposition of both vitronectin (an extracellular matrix protein) and glial fibrillary acidic protein in perilesion areas, associated with development of hydrocephalus. SD208 ameliorated GMH-induced developmental delay, improved cognitive and motor functions, and attenuated body weight loss. SD208 also decreased vitronectin and glial fibrillary acidic protein deposition and decreased GMH-induced brain injury. Conclusions— Increased level of TGF-&bgr;1 and activation of the TGF-&bgr; pathway associate with the development of brain injury after GMH. SD208 inhibits GMH-induced activation of the TGF-&bgr; pathway and leads to an improved developmental profile, partial recovery of cognitive and motor functions, and attenuation of GMH-induced brain atrophy and hydrocephalus.
Black-box Modeling and Compensation of Bursty Communication Signals in RF Power Amplifiers with Power-Dependent Parameters

This paper presents a new black-box technique for modeling long term memory effects in radio frequency power amplifiers. The proposed technique extends commonly used behavioral models by utilizing parameters that dynamically change depending on a long term memory effect while keeping the original model structure intact. This enables us to accurately track and model transient changes in power amplifier characteristics that vary slowly and are induced by the input signal. Identification of long term memory effects is discussed and an iterative identification algorithm for the model parameters is proposed. The model is experimentally tested on a 100 Watt Doherty power amplifier with a 4 MHz Gaussian noise signal that has a step--like change in the amplitude, representative of a realistic communication signal with bursty behavior and a 20 MHz 3GPP LTE test data. Results of behavioral modeling show a 2-2.5 dB and 5-6 dB improvement in average and peak NMSE modeling performance respectively, which shows the suitability of the technique to model bursty signals.
Hydraulic Experiments for Wave Transformation over a Submerged Elliptic Shoal

ABSTRACT Lee, J.-I. ; Kim, Y. -T. , and Cho, Y. -S. , 2013. Hydraulic experiments for wave transformation over a submerged elliptic shoal. Hydraulic experiments were performed to investigate wave transformation by applying regular and unidirectional irregular waves to wave-propagation process over a submerged elliptic shoal. Under the condition that wave breaking did not occur at the center of the shoal, a wave caustic was observed at the lee side of the shoal and the wave heights of the regular waves were measured to be higher than those of the unidirectional irregular waves. Under the breaking condition, the wave heights measured at the center of the shoal were low, but were high at the lateral sides. For the breaking condition, unlike the nonbreaking condition, the wave heights of the unidirectional irregular waves were measured to be higher than those of the regular waves. It was verified that wave-breaking-induced currents affect the refraction and diffraction of waves in this study.
Value of the electrocardiogram in clinical practice.

The irregularities of the heart often confound the physician. The electrocardiogram is the final court of authority in all cardiac irregularities. The normal sinus mechanism varies from 60 to 100 beats per minute. Sinus bradycardia occurs with a rate below 60 per minute. Tachycardia denotes a rate above 100 per minute. Most sinus rhythms (with P waves alike in each lead and P-R intervals 0.10 to 0.20 second in duration) occur in normal hearts. The bradycardia of myxedema and beriberi and the tachycardia of heart failure are exceptions. Bradycardia with a normal heart may be due to effect of digitalis, jaundice, brain tumor or meningitis, tumor of the neck or mediastinum, pressure on the eyeball or massage of the carotid sinus. Tachycardia with a normal heart may be caused by exertion, excitement, use of coffee, tea, alcohol, tobacco, or food, pain, medication with atropine, epinephrine or the nitrites, thyrotoxicosis or
GENERAL‐CIRCULATION‐MODEL SIMULATIONS OF FUTURE SNOWPACK IN THE WESTERN UNITED STATES 1

ABSTRACT: April 1 snowpack accumulations measured at 311 snow courses in the western United States (U.S.) are grouped using a correlation‐based cluster analysis. A conceptual snow accumulation and melt model and monthly temperature and precipitation for each cluster are used to estimate cluster‐average April 1 snowpack. The conceptual snow model is subsequently used to estimate future snowpack by using changes in monthly temperature and precipitation simulated by the Canadian Centre for Climate Modeling and Analysis (CCC) and the Hadley Centre for Climate Prediction and Research (HADLEY) general circulation models (GCMs). Results for the CCC model indicate that although winter precipitation is estimated to increase in the future, increases in temperatures will result in large decreases in April 1 snowpack for the entire western U.S. Results for the HADLEY model also indicate large decreases in April 1 snowpack for most of the western US, but the decreases are not as severe as those estimated using the CCC simulations. Although snowpack conditions are estimated to decrease for most areas of the western US, both GCMs estimate a general increase in winter precipitation toward the latter half of the next century. Thus, water quantity may be increased in the western US; however, the timing of runoff will be altered because precipitation will more frequently occur as rain rather than as snow.
Assimilation of total ozone satellite measurements in a three‐dimensional tracer transport model

The optimal-interpolation data-assimilation technique is used to combine TIROS Operational Vertical Sounder total-ozone columns with the three-dimensional tracer transport model TM3. An ozone chemistry parametrization and dry deposition of ozone are added to the model to give it the ability to simulate realistic ozone profiles. Starting from a separable form of the forecast covariance matrix, the optimal interpolation equation can be rewritten into a horizontal and vertical analysis step. First, the two-dimensional ozone column measurements are analyzed using estimates for the horizontal error covariances. In the second step of the assimilation procedure the analysis increment for the column is distributed over the vertical model layers. This step depends only on a normalized vertical weight function which is equal to the vertical covariance. Three different estimates for this weight function are introduced, using either the ozone error covariance, or the ozone time variance, or the actual ozone mass to distribute column corrections in the vertical. A comparison with independent Total Ozone Mapping Spectrometer ozone observations shows a considerable improvement of the total ozone field due to assimilation. The model error growth is small, making it suitable for assimilating sparse measurements. Ozone profiles from the assimilation appear realistic and close to the ones observed by sondes. They are capable to describe dynamical features in the lower stratosphere. However, due to the absence of vertical information, the assimilation of ozone columns has only little impact on the shape of the vertical ozone profile, which is mainly determined by the transport.
AIS Electronic

Leading academics claim that the management of human resources will be most critical in gaining competitive advantage. Today, the human resources departments (HR) are transforming themselves from an administrative cost-center to an internal partner delivering additional business value. In this transformation process, information technology (IT) could play a key role. Therefore, this paper aims to unfold both the current state of knowledge concerning the value contribution of information systems (IS) for the HR function and approaches that go even beyond operational efficiency. Reviewing nearly 8,000 articles, published in the proceedings of eight major IS conferences reveals that in total 35 articles exclusively deal with the topic of human resources information systems (HRIS) but only very few research approaches show, how HRIS could help to go beyond operational efficiency. Furthermore, the literature analysis identifies that approaches dealing with the IT support for HR planning processes are completely missing so far.
Antimitotic agents: structure-activity studies with some pyridine derivatives.

Antitumor activity in mice was observed for the oxime of the previously reported ethyl [6-amino-4-[(1-methyl-2-phenyl-2-oxoethyl)amino]-5-nitropyridin -2-yl] carbamate (8) and several related compounds. These compounds are precursors of the active ethyl pyrido[3,4-b]pyrazin-7-ylcarbamates (e.g., 4), which are potent antimitotic agents. In the 5-nitropyridine series overall biological activity was reduced by replacement of the oxime moiety with a keto or alcohol group and by replacement of the 1-methyl group of the side chain with hydrogen. Reduction of the nitro group of the 5-nitropyridines containing an alcohol in the side chain to the corresponding 5-aminopyridines increased biological activity. Preliminary studies showed that the 5-nitropyridine oximes were considerably less potent than the pyridopyrazines as antimitotic agents and that the former are apparently not converted to the latter in vivo. The inhibition of the incorporation of pyrimidine nucleosides into DNA and RNA was identified as another possible mode of action of the 5-nitropyridine oximes.
Estudio de las relaciones altura-diámetro para seis especies maderables utilizadas en programas de reforestación en la Zona Sur de Costa Rica

A study of the height-diameter ratios for six woody species used in reforestation programs in Southern Costa Rica. The height-diameter ratios for trees from six woody species used in forest plantations in Southern Costa Rica were studied. These ratios can be described using non-linear functions; however, it was found that the height-diameter curve was affected by the site quality and the stand density. Twenty six models, described in the literature and based on two variables were tested; three other models that take into account stand parameters such as dominant height and mean diameter were also tested. Taking statistical and practical aspects into account, a model which could predict the height of a tree as a function of chest -high diameter was selected. The use of the model is an important factor when estimating the productivity and growth characterization of a stand, in situations where measuring the height of every tree within sampling plots is difficult.