Learning Modules for Chest Xray Quiz

Medical Schoolhttps://deepblue.lib.umich.edu/bitstream/2027.42/149397/1/JeanneKochkodan_1.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/149397/2/JeanneKochkodan_2.ppt

VAT treatment of financial leases in EU law

Treatment of financial leases has always been a major problem of European VAT. Lack of clear rules in the VAT Directive combined with different approaches employed by the national laws of Member States resulted in a high degree of legal uncertainty and provided remarkable opportunities for abusive arrangements. Although significant part of this work is focused on current VAT treatment of financial leases in the case law of the CJEU, its purpose is a little bit broader. The main goal of the thesis is to reflect on the line of reasoning followed by the Court, to assess its advantages and shortcomings and to make some assumptions regarding its further development. In order to achieve this objective, the author addresses key underlying concepts, such as “supply of goods”, distinction between financial and operational leases; pays some attention to the VAT treatment of transactions similar to financial leases and notion of “similarity” in case law of the CJEU; demonstrates the evolution of approach currently used by the Court in respect of financial leases. Possible impact of anticipated adoption of new IFRS for leases on the case law of the CJEU is also considered briefly in the paper

Adsorption of Sodium Hexadecyl Sulfate and Triton X from Binary Aqueous Solutions at Thermally Graphitized Carbon Black

Adsorption of anionic sodium hexadecyl sulfate (SHS) and nonionic Triton X surfactants with different ethoxylation degree: TX-45, TX-100 and TX-300 from their individual and mixed aqueous solutions at the surface of thermally graphitized carbon black (CB) was studied. It was found that at low solution concentrations addition of the nonionic surfactant increases the amount of SHS adsorbed from SHS/Triton X mixtures compared to SHS amount adsorbed from its individual solution. These findings might be explained by decreasing in electrostatic repulsion between SHS ions due to inclusion of the molecules of the nonionic surfactant in the mixed adsorption layer. At higher solution concentrations, adsorption of SHS decrease as a result of displacement of SHS ions from the mixed adsorption layer by Triton X molecules. It was established that the composition of the mixed adsorption layer at CB surface notably differ from the composition of the surfactant mixture in the bulk solution. The mixed adsorption layer is enriched with the molecules of the nonionic surfactants and this conclusion is confirmed by the results of measuring zeta potential of CB particles with the adsorbed surfactants

Adsorption of binary mixtures of sodium hexadecyl sulfate and ethoxylated octylphenols from aqueous solutions at activated carbon

Adsorption of binary mixtures of sodium hexadecyl sulfate and oxyethylated octylphenols surfactants from aqueous solutions at activated carbon AG-3 was studied. It is found that the process of mixed adsorption depends on total surfactants concentration in the mixture, the ratio of components in the mixture and their surface activity. Adsorption data is confirmed by measurements of the zeta potential values of activated carbon particles in the surfactants mixtures

THE EFFECT OF THE ANISOTROPY DRILLING INDEX ON THE DEVIATION OF THE WELL AXIS FROM THE DESIGN PROFILE

Analytical studies of the interaction of the  load on the bottom and the bottom hole assembly of the drill string with the bottom itself and the wall of the well during drilling tilted formations have been  carried out. The correlation interrelation among the drilling index of anisotropy, zenith angle, the slope of the seams, geometric characteristics of the well, the bottom hole assembly of the drill string and the axial load on the bit has been proved.Analytical studies of the impact of bottom hole  assembly  of the drill string containing a centralizer on the bottom itself and the borehole wall have been performed. It has been found  that with an increase in the axial load on the bit and the gap between  the loaded drill pipes and the borehole wall from the bit to the point of contact, the column with the borehole wall distance decreases, and the centralizer in the bottomhole assembly of the drill string increases this distance, thus  increasing bit  load without the risk of the zenith angle deviation.Keywords: borehole wall, zenith angle, drill string, bit load, bottom hole assembly of the drill string, centralizer, dispersion index anisotropy, reservoir angle.кандидат технічних наук, доцент, Кочкодан Я. М., Васько А. І., Добруцький Р. Л. Вплив бурового індексу анізотропії на відхилення осі свердловини від проектного профілю/ Івано-Франківський національний технічний університет нафти і газу, Україна, Івано-ФранківськПроведено аналітичні дослідження взаємодії навантаження на вибій та компоновки низу бурильної колони з вибоєм та стінкою свердловини при бурінні у похило залеглих пластах. Показано взаємозв’язок між буровим індексом анізотропії, зенітним кутом, кутом нахилу пластів, геометричними характеристиками свердловини, компоновкою низу бурильної колони та осьовим навантаженням на долото.Аналітично  досліджено вплив нижньої частини бурильної колони з вибоєм та стінкою свердловини при наявності центратора. Встановлено, що зі збільшенням осьового навантаження на долото та зазору між обважненими бурильними трубами і стінкою свердловини відстань від долота до точки дотику колони зі стінкою свердловини зменшується, а наявність в компоновці низу бурильної колони центратора збільшує цю відстань, що дозволяє збільшити навантаження на долото без небезпеки росту зенітного кута.Ключові слова: стінка свердловини, зенітний кут, бурильна колона, навантаження на долото,компоновка низу бурильної колони, центратор, буровий індекс анізотропії, кут нахилу пласта

Preparation and properties of novel activated carbon doped with aluminum oxide and silver for water treatment

Novel activated carbon (AC) composite materials, namely AC doped with aluminum oxide (Al2O3) and AC doped with Al2O3 and silver (Ag) nanoparticles, have been prepared via a one-step thermal decomposition method. The developed composite materials were used to study the adsorptive removal of molybdenum (Mo) and arsenic (As) from contaminated water. Several techniques, including X-Ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron spectroscopy (SEM), energy dispersive X-Ray spectroscopy (EDS), and thermal gravimetric analysis (TGA), were used to characterize the synthesized materials. TGA results show that the material is very stable and decay starts only above 450 °C. The effects of pH on the adsorptive removal of As and Mo on AC-Al2O3 have also been studied. The prepared AC-Al2O3 material showed 94% removal of total As at pH of 6% and 97% removal of Mo at pH 2. The pollutants removal is due to electrostatic attraction and ligand exchange adsorption mechanisms. It was also found that the novel AC-Al2O3-Ag composite materials exhibit notable antibacterial properties towards both Gram-negative (Escherichia coli) and Gram-positive (Bacillus subtilis) bacteria.Open access funding provided by the Qatar National Library

Patient and provider factors associated with the noninitiation of tamoxifen for young women at high-risk for the development of breast cancer

We sought to identify factors associated with disparities in tamoxifen utilization among young patients at high- risk for developing breast cancer. We identified 67 premenopausal, high- risk women age 35- 45, without surgical prophylaxis, who did not initiate tamoxifen. Factors associated with noninitiation were examined. About 37% of patients had no documented provider- based discussion regarding initiation. Type of high- risk diagnosis was the only factor associated with a provider- based discussion (P = .03). For patients offered tamoxifen, primary reasons for noninitiation were perceived minimal benefit (66.7%), fertility concerns (16.7%), and concerns about side effects (7.1%). Implementation of comprehensive educational strategies regarding the benefits of tamoxifen should be facilitated to improve initiation among young high- risk patients.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/154627/1/tbj13528_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154627/2/tbj13528.pd

Patient and provider factors associated with the noninitiation of tamoxifen for young women at high-risk for the development of breast cancer

We sought to identify factors associated with disparities in tamoxifen utilization among young patients at high- risk for developing breast cancer. We identified 67 premenopausal, high- risk women age 35- 45, without surgical prophylaxis, who did not initiate tamoxifen. Factors associated with noninitiation were examined. About 37% of patients had no documented provider- based discussion regarding initiation. Type of high- risk diagnosis was the only factor associated with a provider- based discussion (P = .03). For patients offered tamoxifen, primary reasons for noninitiation were perceived minimal benefit (66.7%), fertility concerns (16.7%), and concerns about side effects (7.1%). Implementation of comprehensive educational strategies regarding the benefits of tamoxifen should be facilitated to improve initiation among young high- risk patients.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/154627/1/tbj13528_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154627/2/tbj13528.pd