Detection and localization of cotton based on deep neural networks

Cotton detection is the localization and identification of the cotton in an image. It has a wide application in robot harvesting.  Various modern algorithms use deep learning techniques for detection of fruits/flowers. As per the survey, the topics travelled include numerous algorithms used, and accuracy obtained on using those algorithms on their data set. The limitations and the advantages in each paper, are also discussed. This paper focuses on various fruit detection algorithms- the Faster RCNN, the RCNN, YOLO. Ultimately, a rigorous survey of many papers related to the detection of objects like fruits/flowers, analysis of the assets and faintness of each paper leads us to understanding the techniques and purpose of algorithms. &nbsp

Original Studies Outcomes of a Dedicated Stent in Coronary Bifurcations with Large Side Branches: A Subanalysis of the Randomized TRYTON Bifurcation Study

Objectives: To examine the benefit of the Tryton dedicated side branch (SB) stent compared with provisional stenting in the treatment of complex bifurcation lesions involving large SBs. Background: The TRYTON Trial was designed to evaluate the utility of a dedicated SB stent to treat true bifurcation lesions involving large (!2.5 mm by visual estimation) SBs. Patient enrolled in the trial had smaller SB diameters than intended (59% SB 2.25 mm by Core Lab QCA). The TRYTON Trial did not meet its primary endpoint due to an increased rate of peri-procedural myocardial infarctions (MIs). Methods: The TRYTON Trial randomized 704 patients to the Tryton SB stent with main vessel DES versus provisional SB treatment with main vessel DES. The rates of the primary end point of target vessel failure and the secondary powered end point of angiographic percent diameter stenosis in the SB at 9 months were assessed and compared between the two treatment strategies among patients with a SB !2.25 mm diameter at Additional Supporting Information may be found in the online version of this article. Catheterization and Cardiovascular Interventions 00:00-00 V C 2015 Wiley Periodicals, Inc

Study of interactive free energy relationships on oxidation of phenyl styryl ketone and its substituted analogues by pyridinium chlorochromate in acid medium: A kinetic study

283-287Kinetics of oxidation of phenyl styryl ketones (PSK) by pyridinium chlorochromate (PCC) has been investigated in acetic acid (90% v/v) medium in the presence of HClO4 in the temperature range 322 - 333K. The rate law of the reaction is as follows: . .

Multiple substituent effects on ¹³C chemical shifts in phenylstyryl ketones: Applicability of interactive free energy relationship

1341-134513C chemical shifts for 23 mono- and di-substituted phenyl styryl ketones have been determined. The shieldings and deshieldings are compared with previous results for other aromatic derivatives. Correlations of the 13C chemical shifts of vinyl carbons with Hammett σ parameters has been determined to provide a consistent picture of electronic effects transmitted through the carbon framework of the compounds studied. Slopes obtained from such Hammett's plots are termed as ρ, and using these 'ρ' values applicability of interactive free energy relationship to chemical shift values has been tested. The cross- interaction constants qx and qy values for C-α are found to be - 1.02 and -1.20 and for C-β are -1.46 and -1.19

Laceability in the Modified Distance Graph of Grid Graphs

A connected graph G is Hamiltonian-t-laceable if there exists init a Hamiltonian path between at least one pair of distinct vertices u and v with the property d(u; v) = t; 1 6 t 6 diamG. G is termed t-connected if it is Hamiltonian-t-laceable for all t. In this paper, we show that the modied distance graph of the grid graph Mgr(m; n) for n = m, 4 < m < 11 and for n = 2m, 2 < m < 8 is t-connected

Reconnoitering the association between body mass index and oral health among elementary school children in Hyderabad, Telangana, India

Objective: To evaluate the association between body mass index (BMI) and oral health status among elementary school children in Hyderabad, Telangana, India. Materials and Methods: This cross-sectional study was conducted among elementary school children selected from government, private-aided and private-unaided schools in Hyderabad. A stratified cluster random sampling technique was used to select study participants. All parents were requested to be personally present on the day of examination. All eligible children were assembled in a hall and their height in inches and weight in kilograms were recorded by two calibrated investigators. The oral health status of children was assessed using a predesigned oral health assessment proforma. Plaque status was assessed using Sillness and Loe plaque Index and caries using decayed and filled teeth (dft) by a trained and calibrated investigator. Results: One hundred and seventy-one children (89 males and 82 females) were included in the present study. Mean plaque score was 1.4 ± 0.6 with no significant difference in the mean plaque score between children in three different categories of nutritional status (P = 0.07). Mean dft among primary teeth was 1.1 ± 1.1 with a significantly higher score among children who were malnourished (2.4 ± 0.9) compared to children who were overweight (0.9 ± 0.9) and normal (0.4 ± 0.6) (P < 0.001). Conclusion: BMI was negatively associated with caries experience in primary dentition with no association with plaque scores. Overweight children with malnutrition had significantly higher caries experience compared to children with normal BMI

A randomized trial of a dedicated bifurcation stent versus provisional stenting in the treatment of coronary bifurcation lesions

Background Bifurcation lesions are frequent among patients with symptomatic coronary disease treated by percutaneous coronary intervention. Current evidence recommends a conservative (provisional) approach when treating the side branch (SB). Objectives The TRYTON (Prospective, Single Blind, Randomized Controlled Study to Evaluate the Safety & Effectiveness of the Tryton Side Branch Stent Used With DES in Treatment of de Novo Bifurcation Lesions in the Main Branch & Side Branch in Native Coronaries) bifurcation trial sought to compare treatment of de novo true bifurcation lesions using a dedicated bifurcation stent or SB balloon angioplasty. Methods We randomly assigned patients with true bifurcation lesions to a main vessel stent plus provisional stenting or the bifurcation stent. The primary endpoint (powered for noninferiority) was target vessel failure (TVF) (cardiac death, target vessel myocardial infarction, and target vessel revascularization). The secondary angiographic endpoint (powered for superiority) was in-segment percent diameter stenosis of the SB at 9 months. Results We randomized 704 patients with bifurcation coronary lesions at 58 centers (30 from Europe and 28 from the United States). At 9 months, TVF was 17.4% in the bifurcation stent group compared with 12.8% in the provisional group (p = 0.11), mainly because of a higher periprocedural myocardial infarction rate (13.6% vs. 10.1%, p = 0.19). The TVF difference of +4.6% (2-sided 95% confidence interval: -1.0 to 10.3; upper limit of the 1-sided 95% confidence interval: 10.3) was not within the pre-specified noninferiority margin of 5.5% (p = 0.42 for noninferiority). The SB in-segment diameter stenosis among the angiographic cohort was lower in the bifurcation stent group compared with the provisional group (31.6% vs. 38.6%, p = 0.002 for superiority), with no difference in binary restenosis rates (diameter stenosis ≥50%) at 9 months follow-up (22.6% vs. 26.8%, p = 0.44). Conclusions Provisional stenting should remain the preferred strategy for treatment of non-left main true coronary bifurcation lesions. (Prospective, Single Blind, Randomized Controlled Study to Evaluate the Safety & Effectiveness of the Tryton Side Branch Stent Used With DES in Treatment of de Novo Bifurcation Lesions in the Main Branch & Side Branch in Native Coronaries [TRYTON]; NCT01258972

Outcomes of a dedicated stent in coronary bifurcations with large side branches: A subanalysis of the randomized TRYTON bifurcation study

Objectives: To examine the benefit of the Tryton dedicated side branch (SB) stent compared with provisional stenting in the treatment of complex bifurcation lesions involving large SBs. Background: The TRYTON Trial was designed to evaluate the utility of a dedicated SB stent to treat true bifurcation lesions involving large (>= 2.5 mm by visual estimation) SBs. Patient enrolled in the trial had smaller SB diameters than intended (59% SB = 2.25 mm diameter at baseline determined by Core Lab QCA. Results: Among the 704 patients enrolled in the TRYTON Trial, 289 patients (143 provisional and 146 Tryton stent; 41% of entire cohort) had a SB >= 2.25 mm. The primary end point of TVF was numerically lower in the Tryton group compared with the provisional group (11.3% vs. 15.6%, P=0.38), and was within the non-inferiority margin. No difference among the rates of clinically driven target vessel revascularization (3.5% vs. 4.3% P=0.77) or cardiac death (0% both groups) were seen. In-segment percent diameter stenosis of the SB was significantly lower in the Tryton group compared with the provisional group (30.4% vs. 40.6%, P=0.004). Conclusions: Analysis of the TRYTON Trial cohort of SB >= 2.25 mm supports the safety and efficacy of the Tryton SB stent compared with a provisional stenting strategy in the treatment of bifurcation lesions involving large SBs

Mid-Term Outcomes of Transcatheter Aortic Valve Replacement in Extremely Large Annuli With Edwards SAPIEN 3 Valve.

OBJECTIVES: The aim of this study was to report the 1-year results of transcatheter aortic valve replacement (TAVR) with the Edwards SAPIEN 3 (S3) valve in extremely large annuli. BACKGROUND: Favorable 30-day outcomes of S3 TAVR in annuli \u3e683 mm METHODS: From December 2013 to December 2018, 105 patients across 15 centers with mean area 721.3 ± 36.1 mm RESULTS: The mean age was 76.9 ± 10.4 years, and Society of Thoracic Surgeons predicted risk score averaged 5.2 ± 3.4%. One-year overall mortality and stroke rates were 18.2% and 2.4%, respectively. Quality-of-life index improved from baseline to 30 days and at 1 year (p \u3c 0.001 for both). Mild paravalvular aortic regurgitation occurred in 21.7% of patients, while moderate or greater paravalvular aortic regurgitation occurred in 4.3%. Mild and moderate or severe transvalvular aortic regurgitation occurred in 11.6% and 0%, respectively. Valve gradients remained stable at 1 year. CONCLUSIONS: S3 TAVR in annular areas \u3e683 m