Miracle-dz/UniFAR-FTUs huggingface dataset:
The completion determination of optimal ( 3 , 4 ) -packings

A ( 3 , 4 ) -packing consists of an n -element set X and a collection of 4-element subsets of X , called blocks , such that every 3-element subset of X is contained in at most one block. The packing number of quadruples d ( 3 , 4 , n ) denotes the number of blocks in a maximum ( 3 , 4 ) -packing, which is also the maximum number A ( n , 4 , 4 ) of codewords in a code of length n , constant weight 4, and minimum Hamming distance 4. In this paper the undecided 21 packing numbers A ( n , 4 , 4 ) are shown to be equal to Johnson bound J ( n , 4 , 4 ) ( = (cid:2) n 4 (cid:2) n − 13 (cid:2) n − 22 (cid:3)(cid:3)(cid:3) ) .
New covering codes of radius R , codimension tR and tR + R 2 , and saturating sets in projective spaces

The length function (cid:2) q ( r , R ) is the smallest length of a q -ary linear code of codimension r and covering radius R . In this work we obtain new constructive upper bounds on (cid:2) q ( r , R ) for all R ≥ 4, r = t R , t ≥ 2, and also for all even R ≥ 2, r = t R + R 2 , t ≥ 1. The new bounds are provided by inﬁnite families of new covering codes with ﬁxed R and increasing codimension. The new bounds improve upon the known ones. We propose a general regular construction (called “Line+Ovals”) of a minimal ρ -saturating ((ρ + 1 ) q + 1 ) -set in the projective space PG ( 2 ρ + 1 , q ) for all ρ ≥ 0. Such a set corresponds to an [ Rq + 1 , Rq + 1 − 2 R , 3 ] q R locally optimal code of covering radius R = ρ + 1. Basing on combinatorial properties of these codes regarding to spherical capsules, we give constructions for code codimension lifting and obtain inﬁnite families of new surface-covering codes with codimension r = t R , t ≥ 2. In addition, we obtain new 1-saturating sets in the projective plane PG ( 2 , q 2 ) and, basing on them, construct inﬁnite code families with ﬁxed even radius R ≥ 2 and codimension r = t R + R 2 , t ≥ 1.
Seasonal variations in the diurnal patterns of convection in Cameroon–Nigeria and their neighboring areas

High‐resolution (5‐km, 30‐min) Meteosat 7 infrared images are used to document seasonal variations of the diurnal cycle of convective activity over Cameroon and Nigeria during the period 1998‐2002. Cloud fraction, considered to diagnose the properties of cold clouds, is derived by using a threshold of brightness temperatures less than 235 K, thus providing a detailed view of regional differences in the diurnal patterns. The features of the diurnal cycle of convection were investigated for six sampled regions. Over land, the diurnal cycle of convection is mainly controlled by the radiative heating and associated low‐level destabilization. Strong spatial variations exist in the seasonal amplitude of diurnal cycle, highlighting that complex orography, land‐sea contrast and coastline curvature play an important role in modulating the spatial and diurnal patterns of convection. There is consistent noon diurnal peak without obvious seasonal variations of the phase over the ocean. Copyright © 2010 Royal Meteorological Society
Generation Mechanism of Near-Fault Ground Motion Pulses for Dip-Slip Faulting

We studied main aspects of the rupture configuration contributing to the generation of near-fault ground motion pulses during a dip-slip faulting event, by performing the forward simulations in broadband and low-frequency ranges for the different rupture scenarios of the 2009 L'Aquila, Italy (Mw 6.3) earthquake. The rupture scenarios are assumed on the bases of the broadband source model determined by Poiata et al. (2012). We could identify the rupture directivity effect, the radial rupture propagation towards the site, and the focusing effect (Kagawa, 2009) as being the main mechanisms contributing to the generation of the near-fault ground motion pulses. Predominance of one of these mechanisms was estimated to depend on the location of the site relative to the causative fault plane. The analysis also provided the main candidates for the worst case rupture scenarios of the pulse generation for the city of L'Aquila.
InAs/In0.83Al0.17As quantum wells on GaAs substrate with type-I emission at 2.9 μm

This work reports on InAs quantum wells (QWs) grown on GaAs-based metamorphic In0.83Al0. 17As buffers for type-I mid-infrared (MIR) emission. X-ray diffraction and Raman measurements show that the GaAs-based quantum wells have similar lattice and strain conditions with the InP-based structure. Atomic force microscope shows the smoother surface of the structure on GaAs substrate. For the GaAs-based quantum wells, favorable photoluminescence emission at 2.9 μm at 300 K has been achieved, and the optical quality is comparable to the structure on InP substrate. It is promising to employ this metamorphic quantum well structure for the demonstration of GaAs-based antimony-free mid-infrared lasers.
Exploring Regional Patterns of Agritourism in the U.S.: What's Driving Clusters of Enterprises?

Agritourism is a consumer-driven innovation that producers are exploring as a means to diversify and grow farm-based revenues. In order to help guide management and policy decisions, we conduct an exploratory spatial data analysis and find that travel infrastructure, region and rurality, characteristics of the local economy, and proximity to outdoor attractions are all significantly associated with the probability of a county being an agritourism hot spot. Mapping our primary spatial analysis’ residuals, we further identify counties with unique agritourism market conditions as a starting point to identify best practices that other regions interested in agritourism development might follow.
Comparison of the effect of three intramuscular sedation protocols on packed cell volume and total protein in cats

Objectives The aim of this study was to evaluate the change in packed cell volume (PCV) and total protein following intramuscular preanesthetic sedation with one of three drug combinations in cats. Methods Thirty client-owned cats were enrolled in this prospective, randomized, blinded, clinical study. A venous blood sample was obtained prior to administration of any sedation and PCV, total protein, electrolytes (Na+, K+, Cl–, iCa2+), glucose and lactate were measured. Cats were randomly assigned to receive one of three intramuscular sedation protocols (n = 10 cats/protocol): methadone 0.2 mg/kg + acepromazine 0.02 mg/kg (MA), methadone 0.2 mg/kg + dexmedetomidine 5 µg/kg (MD) or methadone 0.2 mg/kg + midazolam 0.2 mg/kg + alfaxalone 2 mg/kg (MMA). Twenty-five minutes later, cats were assessed for level of sedation followed by another venous blood sampling to evaluate the same variables as above. Results There were no significant differences in demographics (age, weight, sex) between groups. Level of sedation was significantly higher in MMA cats. Within groups, after premedication, PCV and hemoglobin significantly decreased in all groups, total protein significantly decreased in the MA and MMA groups and glucose significantly increased in the MD group. For electrolytes, statistical changes were not clinically relevant; Cl– mean difference was significantly different between MA and MD; in the MD group Na+ and Cl– significantly decreased and in the MMA group Cl– significantly increased. Conclusions and relevance All three sedation protocols caused significant decreases in PCV and hemoglobin in healthy cats.
The mechanism of Internet-based Cognitive Behavioral: Therapy(ICBT) for adolescent depression

Objective: To investigate the mechanism of Internet-delivered Cognitive Behavioral Therapy (ICBT) in adolescent depressive symptoms reduction. Methods:A randomized controlled trial was conducted to recruit young students with obvious depression in two middle schools. They were randomly divided into four groups: guided ICBT group, self-help ICBT group, health education group and control group, with 74 people in each group. Two ICBT groups took ICBT courses twice a week for 4 weeks; The health education group provided 8 self-help learning materials; The control group did not take any intervention measures. Participants in both groups completed the Beck Depression Inventory(BDI-Ⅱ), Automatic Thoughts Questionnaire(ATQ)and the Frequency of Thoughts and Actions Scale(FATS) at baseline and post intervention level. Results: (1)There was no significant difference in scores of each scales among the 4 groups at baseline;after 4 weeks of intervention, there were significant differences in the scores of BDI - Ⅱ, ATQ and FATS among the 4 groups(BDI-Ⅱ, P < 0.001; ATQ, P < 0.001; FATS, P < 0.01);(2) The changes of ATQ and FATS have a significant mediating effect on the reduction of BDI-Ⅱ score. Conclusion:Automatic thoughts and cognitive behavior skills play a mediating role in adolescent depression ICBT.
An Image Adaptive Watermarking Algorithm Based on Ridgelet Transform and Two-Dimensional Fuzzy Partition

An image adaptive watermarking algorithm based on ridgelet transform and two- dimensional(2-D) fuzzy partition classification is proposed. In order to obtain a sparse representation of straight edge singularity, the image is first partitioned into small pieces and the ridgelet transform is applied for each piece. After analyzing texture distribution in ridgelet coefficients of each piece, two feature vectors are selected to make up for the ‘wrap around’ effect for FRIT on representation of the image texture. Then the image is classifed into frat regions and texture regions by applying 2-D fuzzy partition classification algorithm with the two feature vectors prepocessed. An watermark sequence is embedded into texture regions with the embedding strength adaptively adjusted by ridgelet coefficients based on the feature of luminance masking and texture masking. Experimental results prove robustness and transparency of the proposed watermarking scheme.
Anhysteretic magnetization processes in multidomain crystals and polycrystals

Theoretical anhysteretic magnetization curves are derived by searching for the minimum energy in an applied field of model domain structures. Magnetization curves are derived for: (1) Finite uniaxial crystals with 180° plane parallel walls. (2) Slightly misoriented polycrystals with (a) plane parallel walls, (b) walls allowed to bow. (3) Oriented polycrystalline materials with air gaps at the grain boundaries. The third model is found to be unrealistic, for a polycrystalline material without any second phase at the grain boundaries, and it is shown that the observed magnetization behaviour may be more generally accounted for in terms of the misorientation between grains. The calculations are precise, but the results are dependent on the initial choice of model domain structure and any limitations imposed on the way in which the walls move.
Intelligent Diagnosis of Vascular Anomalies with Deep Learning

Correct classification and diagnosis of vascular anomalies is an important prerequisite for further clinical treatment. In general, clinical diagnosis of vascular anomalies is conducted according to different characteristics of ultrasonography. However, the clinical presentation of infantile hemangioma (IH) and venous mal- formation (VM) is similar and not easy to be separated. The difficulties result from the special diagnostic ultrasonography mode, indistinguishable grayscale images, rich texture, extensive involvement area, blurred boundary, and the unique blood flow ultrasonography acquisition method of VM. Here we propose a deep learning algorithm for detection and recognition of IH and VM lesions from ultrasonography. The experimental results have shown a good recognition performance on IH and VM ultrasonic images.
Analysis of Factors Influencing Clinical Nurses’ Usage Behavior of F5G All-Optical Network Medical Information System for Smart Hospitals

Objective In this study, we investigated the usage behaviors of clinical nurses for an all-optical network (AON)-based medical information system and the factors influencing these behaviors. The purpose was to provide theoretical support for the wide applications of the system. Methods A whole-group sampling method was adopted. The general information questionnaire and the UTAUT scale were used to survey all nurses from September to October 2022 at the internal medicine building of Puren Hospital (Wuhan University of Science and Technology, WUST), where AONs, a new network prototype for the fifth-generation fixed network (F5G), has been embedded. Results 219 clinical nurses scored (11.97±1.70) on the usage behavior entries, with a mean entry score of (3.99±0.57). Scores for usage behaviors were positively correlated with five factors, namely performance expectancy (PE), effort expectancy (EE), social influence (SI), facilitating conditions (FC), and intention to use, or behavioral intention (BI) (r=0.635,0.760,0.803, 0.826, and 0.802, respectively; P<0.01). The results of the multiple linear regression analysis showed that these five factors greatly affected the usage behaviors of clinical nurses for the system (P< 0.05), explaining 71.9% of the total variance. Conclusion Hospital managers and mid-level leaders are advised to exercise their influence to train clinical nurses and encourage them to use new technologies, thereby promoting the development of information technologies for smart hospitals.
The application of Internet-based intervention in the treatment of depression

Many empirical studies have shown that Internet-based psychological intervention is effective in treating depression. In recent years, a large number of related studies have been accumulated, but there is a lack of organization. This paper reviews and summarizes the relevant research (including systematic review, randomized controlled trial and meta-analysis) in CNKI and Web of Science databases, expounds the application of Internet-based psychological intervention in the treatment of depression from both theoretical and practical aspects, and prospects the future research work.
Encouraging job crafting in the workplace for newcomers: A two-year multi-wave study

It is important to identify the antecedents of newcomers’ job crafting as it assists with their adjustment in the workplace. This study made use of transformational leadership and newcomers’ calling as organizational and personal resources that predict job crafting. We hypothesized that transformational leadership would have an indirect relationship with newcomers’ job crafting after 2 years through their occupational self-efficacy and that their calling would moderate this mediational path. A multi-wave approach was employed wherein data from 280 new employees were collected three times during the first 2 years of their careers. The survey was completed by 150 participants. The results illustrated that transformational leadership was positively related to newcomers’ job crafting after 2 years of entry through their occupational self-efficacy. Additionally, newcomers’ calling moderated the mediating effect of occupational self-efficacy between transformational leadership and job crafting. The theoretical and practical implications of this study are discussed.
Determinants of early working impairments in multiple sclerosis

Introduction Unemployment can directly affect social status and identity. Assessing and adjusting determinants of early working impairments in a chronic disease can thus reduce its long-term burden. Hereby, we aim to evaluate differences in occupational history and early working impairments between people with multiple sclerosis (MS) and healthy workers. Methods This is a cross-sectional study comparing 71 workers with MS [age 41.7 ± 9.4 years; females 59.1%; EDSS 2.0 (1.0–6.0)] and 71 controls (age 42.6 ± 11.9 years; females 33.8%). All participants filled in Work Ability Index (WAI), Work Productivity and Activity Impairment (WPAI), European Questionnaire for Quality of Life (EuroQoL), Beck Depression Inventory II (BDI-II), and Pittsburgh Sleep Quality Index (PSQI). In MS, we further collected expanded disability status scale (EDSS), MS Questionnaire for Job difficulties (MSQ-Job), Fatigue severity scale (FSS), and the Brief International Cognitive Assessment for MS (BICAMS). Results Workers with MS were more working disabled (p < 0.01), less exposed to workplace risks (p < 0.01), and more limited in fitness to work (p = 0.01), compared with controls. On linear regression models adjusted by age, sex, education, and type of contract, people with MS had worse WAI (Coeff=−5.47; 95% CI = −7.41, −3.53; p < 0.01), EuroQoL (Coeff = −4.24; 95% CI = −17.85, −6.50; p < 0.01), BDI-II (Coeff = 3.99; 95% CI = 2.37, 7.01; p < 0.01), and PSQI (Coeff = 4.74; 95% CI = 3.13, 7.61; p < 0.01), compared with controls, but no differences in WPAI (p = 0.60). EuroQoL, BDI-II, and PSQI were equally associated with both WAI and WPAI in MS and controls (all p< 0.01). In MS, worse MSQJob was associated with higher EDSS (Coeff = 5.22; 95% CI = 2.24, 7.95; p < 0.01), progressive disease (Coeff = 14.62; 95% CI = 5.56, 23.69; p < 0.01), EuroQoL (Coeff = 4.63; 95% CI = 2.92, 6.35; p < 0.01), FSS (Coeff = 0.55; 95% CI = 0.38, 0.72; p < 0.01), and cognitive impairment (Coeff = 4.42; 95% CI = 0.67, 8.22; p = 0.02). Discussion Early factors associated with working difficulties in MS include disability, fatigue, depression, and cognitive dysfunction. Early identification of clinical features potentially causing working difficulties should be considered to enhance job retention, along with targeted prevention and protection measures.
Patient-reported symptoms at discharge and risk of complications after gynecologic surgery

Objective Current gaps in knowledge limit clinicians from fully implementing patient-reported outcomes in routine post-operative care. Methods This prospective study assessed symptoms via the gynecologic module of the MD Anderson Symptom Inventory (MDASI-PeriOp-GYN) in patients who underwent open laparotomy. Results At discharge, patient-reported moderate to severe (≥4 on a 0–10 scale) abdominal bloating or abdominal cramping, combined with length of stay of ≥4 days, were found to be associated with a higher risk of 30-day post-operative grade II–IV complications by the Clavien-Dindo system (all p values <0.01). Also, length of stay of ≥4 days and moderate to severe urinary urgency at discharge were found to be associated with the need for re-admission (all p values <0.01). Conclusion This study defined the clinically meaningful symptoms that related to the risk of developing important complications after discharge from major open gynecological surgery. These findings support the integration of assessment of patient-reported outcomes into patient-centered post-operative care.
Ploidy changes in human fungal pathogens: Going beyond sexual reproduction

1 Shanghai Institute of Infectious Disease and Biosecurity, Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, State Key Laboratory of Genetic Engineering, School of Life Science, Fudan University, Shanghai, China, 2 Institutes of Biomedical Sciences, Fudan University, Shanghai, China, 3 College of Pharmaceutical Sciences, Southwest University, Chongqing, China, 4 Department of Molecular Microbiology and Immunology, Brown University, Providence, Rhode Island, United States of America, 5 Shanghai Engineering Research Center of Industrial Microorganisms, Fudan University, Shanghai, China, 6 Shanghai Huashen Institute of Microbes and Infections, Shanghai, China
A Model for the Spectral Albedo of Snow. II: Snow Containing Atmospheric Aerosols

Abstract Small highly absorbing particles, present in concentrations of only 1 part per million by weight (ppmw) or less, can lower snow albedo in the visible by 5–15% from the high values (96–99%) predicted for pure snow in Part I. These particles have, however, no effect on snow albedo beyond 0.9 μm wavelength where ice itself becomes a strong absorber. Thus we have an attractive explanation for the discrepancy between theory and observation described in Part I, a discrepancy which seemingly cannot be resolved on the basis of near-field scattering and nonsphericity effects. Desert dust and carbon soot are the most likely contaminants. But careful measurements of spectral snow albedo in the Arctic and Antarctic paint to a “grey” absorber, one whose imaginary refractive index is nearly constant across the visible spectrum. Thus carbon soot, rather than the red iron oxide normally present in desert dust, is strongly indicated at these sites. Soot particles of radius 0.1 μm, in concentrations of only 0.3 pp.
SOME RESULTS ON FUNDAMENTAL GROUPS AND BETTI NUMBERS OF FINSLER MANIFOLDS

In this paper the relationship between the Ricci curvature and the fundamental groups of Finsler manifolds are studied. We give an estimate of the first Betti number of a compact Finsler manifold. Two finiteness theorems for fundamental groups of compact Finsler manifolds are proved. Moreover, the growth of fundamental groups of Finsler manifolds with almost-nonnegative Ricci curvature are considered.
Nonlinear Gravitoelectrostatic Sheath Fluctuation in Solar Plasma

The nonlinear normal mode dynamics is likely to be modified due to nonlinear, dissipative, and dispersive mechanisms in solar plasma system. Here we apply a plasma-based gravitoelectrostatic sheath (GES) model for the steady-state description of the nonlinear normal mode behavior of the gravitoacoustic wave in field-free quasineutral solar plasma. The plasma-boundary wall interaction process is considered in global hydrodynamical homogeneous equilibrium under spherical geometry approximation idealistically. Accordingly, a unique form of KdV-Burger (KdV-B) equation in the lowest-order perturbed GES potential is methodologically obtained by standard perturbation technique. This equation is both analytically and numerically found to yield the GES nonlinear eigenmodes in the form of shock-like structures. The shock amplitudes are determined (~0.01 V) at the solar surface and beyond at 1 AU as well. Analytical and numerical calculations are in good agreement. The obtained results are compared with those of others. Possible results, discussions, and main conclusions relevant to astrophysical context are presented.
Seasonal Variation of Deaths in the United States, 1951–1960

Abstract Data are available to study the variation in mortality in this country occurring month by month for fully six decades. Death rates by month have been computed and published for the expanding death-registration area of the United States of 1900–1932 and for the complete nation (48 States and ultimately 50 States) from 1933 to the present. Even a cursory glance at the available data leads to the obvious conclusion that a definite pattern of seasonal variation of deaths exists. This seasonal swing is characterized by a high death rate in the early part of the year dropping to a trough in the summer months, and rising again during the latter part of the year. The general pattern is well recognized, as are similar seasonal curves for various causes of death. Despite the apparent wealth of statistical material at hand relatively little analytical matter has been produced in this country measuring seasonality of mortality as compared with the wide range of data compiled for statistical series portraying.