Stock market prices keep on varying day by day. It is very difficult to foresee the future value of the market by the sellers and buyers. In this paper, an analysis system which helps the people to ...identify the more profitable companies using data mining approaches is proposed. The clustering and regression are the two techniques of data mining used here, Validation index is used for analysing the performance of different clustering methods such as partitioning technique, hierarchical technique, model based technique and density based technique.
Among the different clustering techniques experimented, partitioning technique and model based technique give high performance i.e.K-means and EM clustering algorithm respectively. For prediction of future stock price multiple regression technique is used which helps the buyers and sellers to choose their companies from stock.
Objective
To determine if statewide marijuana laws impact upon the detection of drugs and alcohol in victims of motor vehicle collisions (MVC).
Methods
A retrospective analysis of data collected at ...trauma centers in Arizona, California, Ohio, Oregon, New Jersey, and Texas between 2006 and 2018 was performed. The percentage of patients testing positive for marijuana tetrahydrocannabinol (THC) was compared to the percentage of patients driving under the influence of alcohol (blood alcohol level >0.08 g/dL) that were involved in an MVC.
Results
The data were analyzed to evaluate the trends in THC and alcohol use in victims of MVC, related to marijuana legalization. The change in incidence of THC detection (percentage) over the time period where data were available are as follows: Arizona 9.5% (0.4 to 9.9), California 5.4% (20.8 to 26.2), Ohio 5.9% (6.7 to 12.6), Oregon 3% (3.0 to 6.0), New Jersey 2.3% (2.7 to 5.0), and Texas 15.3% (3.0 to 18.3). Alcohol use did not change over time in most states. There did not appear to be a relationship between the legalization of marijuana and the likelihood of finding THC in patients admitted after MVC. In fact, in Texas, where marijuana remains illegal, there was the largest change in detection of THC.
Conclusions
There was no apparent increase in the incidence of driving under the influence of marijuana after legalization. In addition, the changes in marijuana legislation did not appear to impact alcohol use.
Eco-friendly and economic, sunlight driven photocatalytic degradation of pollutants by semiconductor composites is a prolific technique for water remediation. Herein, we coupled the benefits of ...rare-earth compound La(OH)3 with sGO-Ag3PO4/Ag composite in a facile, room temperature and scalable procedure to enhance the activity to acquire accelerated degradation of organic pollutants of varied structure and significance. Plasmonic silver composites pour electrons to the conduction band of La(OH)3, which by itself is visible light inactive with a large band gap. The electrons from La(OH)3 produce ·O2- which are rapidly converted to highly active ·OH, which are otherwise not produced in sGO-Ag3PO4/Ag catalytic system. In addition, integration of rod shaped La(OH)3 leads to a decrease in band gap and thus increased sunlight consumption. Methylene blue and rhodamine B degraded instantaneously while other dyes in few minutes with around 99% mineralization. 4-Chlorophenol and thiram were degraded within 1 and 2 h with 92% and 88% mineralization. The novel composite was 19 times efficient than bare Ag3PO4 was found exceptionally efficient, stable and recyclable up to four cycles. sGO sheet, AgNPs and La(OH)3 rods carry away the electrons from Ag3PO4 to prevent photocorrosion to a great extent and thus provide stability.
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•Facile fabrication of stable and recyclable La(OH)3 doped sGO-Ag3PO4/Ag.•sGO, AgNPs and La(OH)3 prevent recombination and photocorrosion, Ag3PO4/Ag activated sunlight inactive La(OH)3.•La(OH)3 furnished ·OH, red shifted absorbance, improved charge transport.•Ultrafast mineralization of cationic and anionic dyes (1-4 min) thiram and 4-CP (1-2 h).•Superior catalytic activity under sunlight was found over most of the recent composites.
Obesity is an important public health problem in the United States. Because of its potential effects on gastric leptin homeostasis, Helicobacter pylori may play a role in regulating body weight. The ...authors' aim in this study was to examine the association between H. pylori colonization and overweight status. Nonpregnant participants in the Third National Health and Nutrition Examination Survey (1988–1994) aged ≥20 years who had had H. pylori testing performed and body mass index (weight (kg)/height (m)2) measured were studied. Overweight was defined as a body mass index greater than or equal to 25. On the basis of serologic results, the participants were categorized into three H. pylori status groups: H. pylori-positive and cytotoxin-associated gene A (cagA)-positive (H. pylori+cagA+), H. pylori-positive and cagA-negative (H. pylori+cagA−), and H. pylori-negative (H. pylori−). Of the 7,003 subjects with complete body mass index and H. pylori data, 2,634 (weighted percentage, 22.9%) were H. pylori+cagA+, 1,385 (15.1%) were H. pylori+cagA−, and 2,984 (62.0%) were H. pylori−. The adjusted odds of being overweight were 1.17 (95% confidence interval: 0.98, 1.39; p = 0.075) for the H. pylori+cagA+ group and 0.99 (95% confidence interval: 0.80, 1.22; p = 0.92) for the H. pylori+cagA− group in comparison with H. pylori− subjects. Serum leptin levels did not differ significantly between the three H. pylori groups. In this US population-based study, there was no significant association between H. pylori colonization, cagA+ strains of H. pylori, and being overweight.
We have investigated the thermal and optical properties of neutral red dye incorporated with different weight percentage of gold nanoparticles prepared by laser ablation method. Optical absorption ...studies confirmed the production of spherical nanoparticles and also the interactions of the dye molecules with gold nanoparticles. The quenching of fluorescence and the reduction in the lifetime of gold incorporated samples were observed and was due to the non-radiative energy transfer between the dye molecules and gold nanoparticles. Dual beam thermal lens technique has been employed to measure the heat diffusion in neutral red with various weight percentage of gold nano sol dispersed in ethanol. The significant outcome of the experiment is that, the overall heat diffusion is slower in the presence of gold nano sol compared to that of dye alone sample. Brownian motion is suggested to be the main mechanism of heat transfer under the present conditions. The thermal diffusivity variations of samples with respect to different excitation power of laser were also studied.
•Thermal diffusivity (TD) of NR dye with gold nanoparticles were measured using thermal lens technique.•It was observed that the thermal diffusivity of the NR dye was decreased in the presence of gold nano sol.•It was also observed that the thermal diffusion was excitation power dependent.•Variations in TD with various concentrations of NR dye with a fixed amount of Au nanoparticles was also conducted.•NR dye with gold nanoparticles can be efficiently utilized as a thermal insulator or heat sink.
IMPORTANCE: Aortic occlusion (AO) is a lifesaving therapy for the treatment of severe traumatic hemorrhagic shock; however, there remains controversy whether AO should be accomplished via ...resuscitative thoracotomy (RT) or via endovascular balloon occlusion of the aorta (REBOA) in zone 1. OBJECTIVE: To compare outcomes of AO via RT vs REBOA zone 1. DESIGN, SETTING, AND PARTICIPANTS: This was a comparative effectiveness research study using a multicenter registry of postinjury AO from October 2013 to September 2021. AO via REBOA zone 1 (above celiac artery) was compared with RT performed in the emergency department of facilities experienced in both procedures and documented in the prospective multicenter Aortic Occlusion for Resuscitation in Trauma and Acute Care Surgery (AORTA) registry. Propensity score matching (PSM) with exact institution matching was used, in addition to subgroup multivariate analysis to control for confounders. The study setting included the ED, where AO via RT or REBOA was performed, and participants were adult trauma patients 16 years or older. EXPOSURES: AO via REBOA zone 1 vs RT. MAIN OUTCOMES AND MEASURES: The primary outcome was survival. Secondary outcomes were ventilation-free days (VFDs), intensive care unit (ICU)–free days, discharge Glasgow Coma Scale score, and Glasgow Outcome Score (GOS). RESULTS: A total of 991 patients (median IQR age, 32 25-48 years; 808 male individuals 81.9%) with a median (IQR) Injury Severity Score of 29 (18-50) were included. Of the total participants, 306 (30.9%) had AO via REBOA zone 1, and 685 (69.1%) had AO via RT. PSM selected 112 comparable patients (56 pairs). REBOA zone 1 was associated with a statistically significant lower mortality compared with RT (78.6% 44 vs 92.9% 52; P = .03). There were no significant differences in VFD greater than 0 (REBOA, 18.5% 10 vs RT, 7.1% 4; P = .07), ICU-free days greater than 0 (REBOA, 18.2% 10 vs RT, 7.1% 4; P = .08), or discharge GOS of 5 or more (REBOA, 7.5% 4 vs RT, 3.6% 2; P = .38). Multivariate analysis confirmed the survival benefit of REBOA zone 1 after adjustment for significant confounders (relative risk RR, 1.25; 95% CI, 1.15-1.36). In all subgroup analyses (cardiopulmonary resuscitation on arrival, traumatic brain injury, chest injury, pelvic injury, blunt/penetrating mechanism, systolic blood pressure ≤60 mm Hg on AO initiation), REBOA zone 1 offered an either similar or superior survival. CONCLUSIONS AND RELEVANCE: Results of this comparative effectiveness research suggest that REBOA zone 1 provided better or similar survival than RT for patients requiring AO postinjury. These findings provide the ethically necessary equipoise between these therapeutic approaches to allow the planning of a randomized controlled trial to establish the safety and effectiveness of REBOA zone 1 for AO in trauma resuscitation.
Introduction: Entrapment of the lateral femoral cutaneous nerve (LFCN) of thigh results in meralgia paresthetica (MP). Standard electrophysiological tests for MP are technically demanding and ...unreliable. We aimed to study the role of pain-related evoked potentials (PREP) in the diagnosis of MP. Methods: Patients with MP and normal volunteers were included. PREP was recorded by stimulating the skin over the lateral thigh 20 cm below the anterior-superior iliac spine and recording from the cortex at Cz. Results: A total of 28 subjects and 56 LFCNs were studied. 36 nerves had MP and 20 were normal. The mean PREP latency was 118 (8) ms among normal controls and 164 (10.8) ms in MP. The optimal cut-off point for the diagnosis of MP was 134 ms. Area under receiver operator characteristic curve was 0.97; sensitivity was 91.7% and specificity was 100%. Conclusion: PREP is reliable and easy to use electrophysiological test in establishing the diagnosis of MP.
A novel greener methodology is reported for the synthesis of titanium dioxide (TiO
) nanoparticles (NPs) using gum Arabic (
) and the characterization of the ensuing TiO
NPs by various techniques ...such as X-ray diffraction (XRD), Fourier transform infrared, Raman spectroscopy, scanning electron microscopy-energy dispersive X-ray, transmission electron microscopy (TEM), high resolution-TEM, and UV-visible spectroscopy. The XRD analysis confirmed the formation of TiO
NPs in the anatase phase with high crystal purity, while TEM confirmed the size to be 8.9 ± 1.5 nm with a spherical morphology. The electrode for the electrochemical detection of Pb
ions was modified by a carbon paste fabricated using the synthesized TiO
NPs. Compared to the bare electrode, the fabricated electrode exhibited improved electro-catalytic activity toward the reduction of Pb
ions. The detection limit, quantification limit, and the sensitivity of the developed electrode were observed by using differential pulse voltammetry to be 506 ppb, 1.68 ppm, and 0.52 ± 0.01 μA μM
, respectively. The constructed electrode was tested for the detection of lead content in plastic toys.
Thermogravimetric studies of the sodium salt of poly(acrylic acid), its modified sodium salt and its various metal complexes were made. The thermal stabilities of the various systems decreased in the ...order: poly(acrylic acid) > Ni(II) > Co(II) > Zn(II) > Fe(III) > Cu(II) > polymeric sodium salt. The higher thermal stabilities of the polymer-metal complexes result from the development of stable ring structures in the polymer matrix upon coordination with metal ions. The metal-ion complexation of carboxylate ligands of linear poly(acrylic acid), optimization of the complexation conditions and infra-red and ultraviolet-visible spectrometric characterizations are also illustrated.
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