Person re‐identification represents a pivotal sub‐problem in image retrieval, boasting broad application prospects in fields such as intelligent security and video surveillance. However, most ...existing person re‐identification methods predominantly focus solely on visual features pertaining to the person targets, thereby disregarding some supporting information closely related to the scene context. In the context of athlete re‐identification during sports event scenes, the athlete bib number is fully considered, an important clue that can provide different athletes' identities, and the traditional visual features of the person and high‐level semantic information of the bib number text are fused. A multi‐source information mutual gain mechanism is designed to improve the accuracy of the person re‐identification task. In the existing only publicly available marathon bib number dataset RBNR, the recognition accuracy of this method is significantly superior to that of the existing person re‐identification method. In addition, this paper constructs and publishes an athlete re‐identification dataset (HNNU‐ReID8000) for mainstream sports events, and the mean average precision (mAP) value of this method reaches 96.1% on this dataset, significantly ahead of existing state‐of‐the‐art person re‐identification methods. The code and the HNNU‐ReID8000 dataset will be released at https://github.com/yanbin‐zhu/zyb_person‐reid.
This paper designs a multi‐source information mutual gain mechanism to improve the accuracy of the person re‐identification task. The contribution is threefold: (1) A mutual gain mechanism between a person's visual features and high‐level semantic information is designed to enhance the performance of person re‐identification methods. (2) To the best of the authors' knowledge, there exists a notable scarcity of athlete re‐identification datasets. A dataset (i.e. HNNU‐ReID8000) is constructed and made publicly available to facilitate research in the athlete re‐identification community. (3) Extensive experiment evaluations on two publicly available person re‐identification datasets, that is, the RBNR dataset and the HNNU‐ReID8000 dataset, demonstrate the remarkable superiority of this method.
Northern corn leaf blight (NCLB), caused by the fungal pathogen
Exserohilum turcicum
, poses a grave threat to maize production worldwide. The resistance gene in A619
Ht3
, discovered decades ago, is ...an important genetic resource for NCLB control. By using a pair of near-isogenic lines (NILs) A619
Ht3
and A619, together with the resistant and susceptible bulks derived from the cross of A619
Ht3
and L3162 lines, we initially detected a
Ht3
-like (
Ht3L
) locus in bin 8.06 that was closely associated with NCLB resistance. We then performed five rounds of fine-mapping, which ultimately delimited the
Ht3L
locus to a 577-kb interval flanked by SNP markers KA002081 and KA002084. Plants homozygous for the
Ht3L
/
Ht3L
genotype exhibited an average reduction in diseased leaf area (DLA) by 16.5% compared to plants lacking
Ht3L locus
. The
Ht3L
locus showed extensive variation in genomic architecture among different maize lines and did not appear to contain any genes encoding canonical cell wall-associated kinases against NCLB. Moreover, the
Ht3L
locus was located ∼2.7 Mb away from the known
Htn1
locus. We speculate that the
Ht3L
locus may contain a bona fide
Ht3
gene or a novel NCLB resistance gene closely linked to
Ht3
. In practice, the
Ht3L
locus is a valuable resource for improving maize resistance to NCLB.
Preoperative deep vein thrombosis (DVT) of the lower extremities delays surgery in patients with femoral shaft fractures and impairs functional recovery. However, studies on preoperative DVT in ...patients with femoral shaft fractures are still rare. This study was aimed to retrospectively analyze the preoperative incidence, location and risk factors associated with DVT in patients with femoral shaft fractures.
Data of patients with femoral shaft fractures and treated with surgery at the Third Hospital of Hebei Medical University were retrospectively collected from January 2013 to December 2019. The information collected included demographic data, comorbidities, injury-related data and laboratory tests. Patients were divided into DVT and non-DVT groups. Univariate and multivariate logistic regression analyses were performed to determine independent risk factors.
A total of 432 patients were included in this study, of whom 114 (26.4%) patients were diagnosed with preoperative DVT (all asymptomatic) and injured extremities of 78.1% (89/114) were investigated. Multivariate analysis showed that older age (increase in each 10 years), delay time from injury to operation (in each day), FIB > 4 g/L were independent risk factors for preoperative DVT.
Patients with femoral shaft fractures (especially the elderly and patients with the above-mentioned conditions) are at the risk of DVT right from admission to surgery hence should be intensively monitored and provided with prompt treatment to prevent DVT.
Pigs stand as a vital cornerstone in the realm of human sustenance, and the intricate composition of their intestinal microbiota wields a commanding influence over their nutritional and metabolic ...pathways. We employed multi-omic evaluations to identify microbial evidence associated with differential growth performance and metabolites, thereby offering theoretical support for the implementation of efficient farming practices for Tibetan pigs and establishing a robust foundation for enhancing pig growth and health. In this work, six Duroc × landrace × yorkshi (DLY) pigs and six Tibetan pigs were used for the experiment. Following humane euthanasia, a comprehensive analysis was undertaken to detect the presence of short-chain fatty acids (SCFAs), microbial populations, and metabolites within the colonic environment. Additionally, metabolites present within the plasma were also assessed. The outcomes of our analysis unveiled the key variables affecting the microbe changes causing the observed differences in production performance between these two distinct pig breeds. Specifically, noteworthy discrepancies were observed in the microbial compositions of DLY pigs, characterized by markedly higher levels of
and
(
< 0.05). These disparities, in turn, resulted in significant variations in the concentrations of acetic acid, propionic acid, and the cumulative SCFAs (
< 0.05). Consequently, the DLY pigs exhibited enhanced growth performance and overall well-being, which could be ascribed to the distinct metabolite profiles they harbored. Conversely, Tibetan pigs exhibited a significantly elevated relative abundance of the
, which consequently led to a pronounced increase in the concentration of L-cysteine. This elevation in L-cysteine content had cascading effects, further manifesting higher levels of taurine within the colon and plasma. It is noteworthy that taurine has the potential to exert multifaceted impacts encompassing microbiota dynamics, protein and lipid metabolism, as well as bile acid metabolism, all of which collectively benefit the pigs. In light of this, Tibetan pigs showcased enhanced capabilities in bile acid metabolism. In summation, our findings suggest that DLY pigs excel in their proficiency in short-chain fatty acid metabolism, whereas Tibetan pigs exhibit a more pronounced competence in the realm of bile acid metabolism. These insights underscore the potential for future studies to leverage these breed-specific differences, thereby contributing to the amelioration of production performance within these two distinct pig breeds.
This study aimed to investigate the incidence, location, and related factors of preoperative deep venous thrombosis (DVT) in patients with isolated patellar fractures.
Patients with an isolated ...patellar fracture, admitted between January 2013 and December 2019 at our institution, were retrospectively analyzed. Upon admission, patients underwent routine Doppler ultrasound scanning (DUS) of the bilateral lower extremities to detect DVT; those with DVT were assigned to the case group and those without DVT to the control group. Patients in both groups did not perform preoperative off-bed weight-bearing exercises. Data on demographics, comorbidities, and laboratory test results upon admission were extracted. Variables were evaluated between the two groups using univariate analyses, and independent risk factors associated with DVT were identified by logistic regression analysis.
During the study period, 827 patients were included, of whom 5.8% (48/827) were found to have preoperative DVT. In DVT patients, 85.4%(41/48) were injured, 8.3%(4/48) were not injured, and 6.3%(3/48) were lower limbs. Multivariate analysis showed that male (male vs. female, odds ratio, OR = 2.25), delayed from injury to DUS (in each day, OR = 1.29), and elevated plasma D-dimer level (> 0.5 µg/mL, OR = 2.47) were independent risk factors associated with DVT.
Despite the low prevalence of DVT after an isolated patellar fracture, this study underscores the importance of identifying those with a high risk of DVT, especially those with multiple identifiable factors, and encourage the early targeted use of anti-thromboembolic agents to reduce DVT occurrence.
Grazing (G) yaks (
Bos grunniens
) are generally of low fertility, which severely limits the income of local pastoralists. However, we recently found that yaks had a 52% higher estrus rate in house ...feeding (HF) than in G. Gas chromatography-mass spectrometry (GC-MS) and 16S rRNA gene sequencing were used to analyze serum metabolites and fecal microbiota of 20 rutting yaks in the G and HF systems, respectively, to explain this phenomenon. The results showed that 73 total metabolites differed significantly (
p
< 0.05 and VIP > 1) between the G and HF systems. In the HF system, 53 were upregulated and 20 were downregulated compared with the G system. Organic oxygen compounds, organic acids and their derivatives, and lipids and lipid-like molecules were the most common differential metabolites. The Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway mapper revealed that 25 metabolic signaling pathways differed significantly between the two systems. The top three enriched pathways included central carbon metabolism in cancer, aminoacyl–tRNA biosynthesis, and ABC transporters. The 16S rRNA gene sequencing data showed no significant differences in Chao 1 index between the two systems. According to principal component analysis (PCA), the HF and G systems were distinctly and separately clustered in terms of fecal microbiota distribution. The G system showed significantly higher abundances of
Firmicutes
. The HF system showed significantly higher abundances of
Alistipes, Treponema
, and
Rikenellaceae_ RC9_ gut_ group
. Pearson's correlation analysis and core network analysis revealed that
Rikenellaceae_RC9_ gut_ group, Alistipes
, and
Treponema
were positively correlated with myo-inositol and formed the core bacteria. In summary, the HF system promoted the estrus rate and changed the composition of yak fecal microbiota and serum metabolites. Increased estrus rate might be obtained due to enhanced myo-inositol content in yak serum
via
the HF system. Correlation analysis suggested that myo-inositol content might also be partly increased
via
yak-specific fecal microbiota, contributing to the estrus rate. These findings could lead to a novel therapeutic strategy for G yaks due to their low estrus rate.
Objective
The objective of this retrospective study was to compare the efficacy of the double reverse traction repositor (DRTR) and traction table with proximal femoral nailing antirotation (PFNA) in ...the treatment of unstable intertrochanteric fractures. Patients and Methods: Data from 66 patients (36 patients treated with the traction table and 30 patients treated with DRTR) with unstable intertrochanteric fractures were reviewed from January 2017 to June 2017. The demographics, fracture characteristics, surgical data, and prognostic parameters were collected to compare the differences between the two groups. Results: The collodiaphyseal angle (CDA) was significantly lower in the DRTR group than in the traction table group (129.37° ± 7.47 and 135.67° ± 6.95, respectively, p < 0.001). The open reduction rate was significantly lower in the DRTR group than in the traction table group (3.3% and 13.9%, respectively, p < 0.001). No significant differences were found in the demographics, fracture characteristics, other surgical data, or prognostic parameters between the two groups. Conclusions: DRTR can facilitate safe, effective, and minimally invasive treatment of unstable intertrochanteric fractures with PFNA.
It is well established that the postoperative results were affected by the surgeon volume in a variety of elective and emergent orthopaedic surgeries; however, by far, no evidences have been ...available as for surgically treated displaced intra‐articular calcaneal fractures (DIACFs). We aimed at investigating the relationship between surgeon volume and deep surgical site infection (DSSI) following open reduction and internal fixation (ORIF) of DIACFs. This was a further analysis of prospectively collected data from a validated database. Patients with DIACFs stabilised by ORIF between 2016 and 2019 were identified. Surgeon volume was defined as the number of surgically treated calcaneal fractures within one calendar year and was dichotomised based on the optimal cut‐off value. The outcome measure was DSSI within 1 year postoperatively. Multivariate logistics regression analyses were performed to examine the relationship, adjusting for confounders. Among 883 patients, 19 (2.2%) were found to have a DSSI. The DSSI incidence was 6.5% in surgeons with a low volume (<6/year), 5.5 times as that in those with a high volume (≥6/year) (incidence rate, 1.2%; P < 0.001). The multivariate analyses showed a low volume <6/year was associated with a 5.8‐fold increased risk of DSSI (95% confidence interval, 2.2‐16.5, P < 0.001). This value slightly increased after multiple sensitivity analyses, with statistical significances still unchanged (OR range, 6.6‐6.9; P ≤ 0.001). The inverse relationship indicates a need for at least six cases/year for a surgeon to substantially reduce the DSSIs following the ORIF of DIACFs.
This study aimed to describe the characteristics of plasma D-dimer level with increasing age and establish a new age-adjusted D-dimer cutoff value for excluding preoperative lower limb deep vein ...thrombosis (DVT) in elderly patients with hip fractures.
This was a retrospective study of elderly patients who presented with acute hip fracture in our institution between June 2016 and June 2019. All patients underwent D-dimer test and duplex ultrasound. Patients were divided into six 5-year-apart age groups. The optimal cutoff value for each group was calculated by using receiver operating characteristic (ROC) curves, whereby the new age-adjusted D-dimer cutoff value was determined. The sensitivity, specificity, positive predictive values (PPV) and negative predictive values (NPV) were calculated and compared when different D-dimer cutoff values were applied, i.e., conventional 0.5 mg/L, previously well-established age-adjusted cutoff value (age × 0.01 mg/L) and the new age-adjusted D-dimer cutoff value herein.
There were 2759 patients included, 887 males and 1872 females, with an average age of 78 years. In total, 280 patients were diagnosed with preoperative DVT. The optimal cutoff values for the six age groups were 0.715 mg/L, 1.17 mg/L, 1.62 mg/L, 1.665 mg/L, 1.69 mg/L and 1.985 mg/L, respectively, and the calculated age-adjusted coefficient was 0.02 mg/L. With this new coefficient applied, the specificity was 61%, clearly higher than those for conventional threshold (0.5 mg/L, 37%) or previously established age-adjusted D-dimer threshold (age × 0.01 mg/L, 22%). In contrast, the sensitivity was lower than that (59% vs 85% or 77%) when D-dimer threshold of 0.5 mg/L or age-adjusted cutoff value (age × 0.01 mg/L) was used. The other indexes as PPV (15%, 11% and 12%) and NPV (93%, 93% and 94%) were comparable when three different D-dimer thresholds were applied.
We developed a new age-adjusted D-dimer cutoff value (age × 0.02 mg/L) for a specified high-risk population of patients aged 65 years or older with hip fractures, and demonstrated the improved utility of the D-dimer test for exclusion of DVT. This formula can be considered for use in elderly hip fracture patients who meet the applicable standards as preoperative DVT screening, after its validity is confirmed by more well-evidenced studies.
The aim of this study is to investigate the radiographic and functional results of die-punch fracture of distal radius treated by volar locking plate (VLP) or external fixation (EF).
Between January ...2015 and June 2018, 87 patients who were treated with EF or VLP were included in this study. At postoperative 6 months and at least 12 months, radiographic and functional outcomes were evaluated, and compared between two groups using SPSS 21.0.
The follow-up period was 15.6 months in average, and at the mean 8.5 weeks bony union was achieved in all patients. At 6-month visit, patients in VLP group had significantly better wrist flexion (79.2° vs. 71.8°) and pronation (79.5° vs. 75.2°) than those in EF group, but the difference was non-significant at the last visit (> 12 months); as for other parameters, no significant differences were observed. No significant difference was found between both groups in term of volar tilt, radial inclination, radial height, ulnar variance, or Gartland-Werley score and DASH. The articular step-off was significantly greater in EF than VLP group (0.6 mm vs. 0.3 mm, p < 0.001). The overall incidence of complications seemed higher in EF group (25% vs. 14%), but not approaching to the statistical significance level.
Patients with VLP fixation of die-punch fractures had better wrist flexion and pronation at 6-month visit and more favorable wrist joint congruence at the last visit, but ultimately their outcome was comparable with those treated by EF.
PDF
