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#32473582   2020/05/29 To Up

The Acute Effects of Different Intensity Whole-Body Vibration Exposure on Muscle Tone and Strength of the Lower Legs, and Hamstring Flexibility: A Pilot Study.

The research on the change in properties of the lower leg muscles by different intensity sinusoidal vertical whole-body vibration (SV-WBV) exposures has not yet been investigated.
Tülay Çevik Saldıran, Emine Atıcı, Derya Azim Rezaei, Özgül Öztürk, Burcu Uslu, Burcu Ateş Özcan, Begüm Okudan

2466 related Products with: The Acute Effects of Different Intensity Whole-Body Vibration Exposure on Muscle Tone and Strength of the Lower Legs, and Hamstring Flexibility: A Pilot Study.

25 mg100 mg100ul 25 MG100ug50 ug 100.00 ul5mg100ug10 mg

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#32473561   2020/05/16 To Up

Spectral resolution of quaternary components in a sinus and congestion mixture; Multivariate algorithms to approach extremes of concentration levels.

Sinus and congestion mixture of three drugs and an impurity was studied for their spectral resolution using four multivariate algorithms. The studied drugs present in extremes of low and high concentrations. Low concentration levels of phenylephrine HCl and doxylamine succinate with high concentration of paracetamol along with its official impurity was a challenging mixture for pharmaceutical analysis. The developed algorithms are principal component regression, partial least squares, concentration residuals augmented classical least squares and artificial neural networks. Models were compared for their calibration errors in general and individual calibration as well as their prediction of external validation samples. Concentration levels in the designed mixture were carefully considered to recede the challenging dosage form ratio. The value of root mean square error of prediction and percentage recoveries were used to describe the analytical performance of the proposed models. Artificial neural networks provided the lower most error with good recoveries for all samples without outlier. Correlation coefficients between the predicted spectra by concentration residuals augmented classical least squares and the pure ones revealed the ability for qualitative analysis. The proposed chemometrics have been successfully used for pharmaceutical application and compared favorably with the official methods.
Ali M Yehia, Mona Nabil, Amr M Badawey, Samah S Abbas

1822 related Products with: Spectral resolution of quaternary components in a sinus and congestion mixture; Multivariate algorithms to approach extremes of concentration levels.

1 kit50 ul100 100 ul25 100 100 ul

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#32473559   2020/05/12 To Up

Cyanine-based fluorescent indicator for mercury ion and bioimaging application in living cells.

A commercial cyanine dye IR-780 and a thioether-containing dicarboxylic acid ligand were used to construct the near-infrared fluorescent probe, which was used as a near-infrared fluorescent indicator for the determination of mercury ions in water and in living cells. This indicator displayed high specificity towards Hg without any interference from other detecting species. Especially, the emission at 790 nm dramatically increased more than 25 times after interacting with Hg. The binding experiment showed that the indicator formed 1:1 complex with Hg. More, this indicator could be applied in the visualization of Hg in living cells and measuring the Hg concentration of tap-water sample.
Guangjin Li, Yihan Guan, Fengying Ye, Sheng Hua Liu, Jun Yin

1107 related Products with: Cyanine-based fluorescent indicator for mercury ion and bioimaging application in living cells.

1x10e7 cells100ug Lyophilized1.00 flask1mg0.1ml 100ul0.25 mg

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#32473547   2020/05/10 To Up

New graduate nurses' self-assessed competencies: An integrative review.

Much of the ongoing shortage of nurses can be attributed to high turnover rates, and open positions are mostly filled by new graduate nurses who often lack the competencies required to provide quality patient care. An additional problem is that over 20% of these nurses leave their positions within 1 year, and low nursing competency is a main contributor to their decision. New graduate nurses' competencies are typically evaluated by experienced nurses who attempt to provide objective assessment of deficiencies, but this approach has not reduced turnover rates. Therefore, this integrative review explored new graduate nurses' self-assessed competencies. The review revealed that new graduate nurses' self-assessed deficiencies included advanced technical skills, critical thinking, communication, teamwork, helping role, and professionalism, most of which were associated with "soft" skills. New graduate nurses' possession not only of "hard" nursing skills within the cognitive and psychomotor domains but also of soft skills that mostly lie within the affective domain is vital to achieve higher retention rates. Because soft-skill competencies are problematic to objectively evaluate, recommendations include development and frequent application of a more objective measure such as a rubric, greater emphasis on soft skills in education, and supervised hands-on training in supportive practice settings.
Youngkwan Song, Linda L McCreary

1608 related Products with: New graduate nurses' self-assessed competencies: An integrative review.

1 mg200 100 ug1 g100ug100ug Lyophilized100ug Lyophilized100 TESTS1 Set100ug Lyophilized100ug Lyophilized

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#32473518   2020/05/27 To Up

Uncertainty quantification analysis and optimization for proton therapy beam lines.

Since many years proton therapy is an effective treatment solution against deep-seated tumors. A precise quantification of sources of uncertainty in each proton therapy aspect (e.g. accelerator, beam lines, patient positioning, treatment planning) is of profound importance to increase the accuracy of the dose delivered to the patient. Together with Monte Carlo techniques, a new research field called Uncertainty Quantification (UQ) has been recently introduced to verify the robustness of the treatment planning. In this work we present the first application of UQ as a method to identify typical errors in the transport lines of a cyclotron-based proton therapy facility and analyze their impact on the properties of the therapeutic beams. We also demonstrate the potential of UQ methods in developing optimized beam optics solutions for high-dimensional problems. Sensitivity analysis and surrogate models offer a fast way to exclude unimportant parameters frcomplex optimization problems such as the design of a superconducting gantry performed at Paul Scherrer Institute in Switzerland.
V Rizzoglio, A Adelmann, A Gerbershagen, D Meer, K P Nesteruk, J M Schippers

2125 related Products with: Uncertainty quantification analysis and optimization for proton therapy beam lines.

1 module 100ul48 assays10 100ug200ug 15 ml 1 module200 mg2000 rxn

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#32473507   2020/05/16 To Up

Bamboo-biochar and hydrothermally treated-coal mediated geochemical speciation, transformation and uptake of Cd, Cr, and Pb in a polymetal(iod)s-contaminated mine soil.

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Mehr Ahmed Mujtaba Munir, Guijian Liu, Balal Yousaf, Muhammad Ubaid Ali, Ayesha Imtiyaz Cheema, Muhammad Saqib Rashid, Abdul Rehman

1277 related Products with: Bamboo-biochar and hydrothermally treated-coal mediated geochemical speciation, transformation and uptake of Cd, Cr, and Pb in a polymetal(iod)s-contaminated mine soil.

200ul25 mg1000 tests100ul200ug10 mg100 mg10 mg1000 1 mg100ug

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#32473506   2020/05/08 To Up

Development of polyoxymethylene passive sampler for assessing air concentrations of PCBs at a confined disposal facility (CDF).

In this study, 76 μm polyoxymethylene (POM) strips were evaluated as a passive air sampler (PAS) for monitoring the volatile emissions from dredged material placed in confined disposal facilities (CDF). Laboratory evaluations were used to assess the uptake kinetics, average equilibrium time, and estimate the POM-air partition coefficients (K) of 16 PCB congeners. The uptake kinetics defined the effective averaging time for air sampling and ranged from about a week for dichlorobiphenyls to 2 weeks or more for tetra- and pentachlorobiphenyls at ∼20 °C under internal mass transfer resistance control which was applicable for Log K < 8. The measured Log K for PCBs ranged from 5.65 to 9.34 and exhibited an average deviation of 0.19 log unit from the theoretical value of K/K. The PAS approach was then tested with a preliminary field application (n = 17) at a CDF allowing equilibration over 42 days. The field application focused on lower congener PCBs as a result of the estimated increase in K and longer uptake times expected at the low ambient temperatures during the field study (average of 3.5 °C). Total PCB air concentrations around the CDF averaged 0.32 ng/m and varied according to proximity to placement of the dredged materials and predominant wind directions. Average PAS concentration of low congener number PCBs (15, 18, 20/28, 31) were compared to available high volume air sampler (HVAS) measurements. The PAS concentrations were within 20% of HVAS in the dominant north and south directions and showed similar trends as east and west HVAS samplers although PAS concentrations were as much as an order of magnitude below the west HVAS.
Adesewa A Odetayo, Danny D Reible, Damarys Acevedo-Mackey, Cynthia Price, Le Thai

2521 related Products with: Development of polyoxymethylene passive sampler for assessing air concentrations of PCBs at a confined disposal facility (CDF).

100ug Lyophilized100 ml250 mg100μl10reactions 5 mg0.1 mg100ul1x96 well plate 1 G200ul

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#32473503   2020/05/26 To Up

Early application of prone position for management of Covid-19 patients.


Majid Golestani-Eraghi, Ata Mahmoodpoor

2158 related Products with: Early application of prone position for management of Covid-19 patients.

100ul1 LITRE1 ml0.1ml (1mg/ml)100 ml25 µg 100ul0.1ml (1mg/ml) 1 G100 TESTS 100ul0.1 mg

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#32473491   2020/05/21 To Up

Effect of extraction methods on the structural characteristics, functional properties, and emulsion stabilization ability of Tilapia skin gelatins.

The application of fish gelatins in emulsions has attracted much attention and their stabilization mechanisms remain unclear. This work explores the effect of extraction methods on the structural characteristics, functional properties, and emulsion application of Tilapia skin gelatins. The creaming stability of Tilapia skin gelatin-stabilized emulsions are dependent on gelatin secondary structure, gelatin fat-binding capacity, the presence of NaCl, and storage temperatures. The emulsion creaming velocities are: acetic acid-extracted gelatin (AAG) ≈ hot water-extracted gelatin (HWG) > pepsin enzyme-extracted gelatin (PEG). The emulsion creaming velocities in the presence of NaCl are: AAG < HWG ≈ PEG. The stability mechanisms are involved with a "protein secondary structure - molecular interaction - emulsion droplet structure - emulsion stability" route. This work provides useful information for understanding the relationships between the structural characteristics and emulsion stability of gelatins. The fish oil-loaded Tilapia skin gelatin-stabilized emulsions also show promising prospective applications in food beverages.
Ting Zhang, Rui Sun, Mengzhen Ding, Lina Tao, Lijie Liu, Ningping Tao, Xichang Wang, Jian Zhong

1506 related Products with: Effect of extraction methods on the structural characteristics, functional properties, and emulsion stabilization ability of Tilapia skin gelatins.

5 G1 2 ml Ready-to-use 25 mg50 extractions500 Units100 reactions100 extractions2.5 mg10 mg10 extractions100ug

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