Estimation of Unconfined Uniaxial Compressive Strength Using Schmidt Hardness and Ultrasonic Pulse Velocity

Unconfined Compressive Strength (UCS) of the rocks plays a significant role in geotechnical and rock engineering projects. Due to difficulties UCS estimation is done using indirect methods such as Schmidt Rebound Hammer (RN) and Ultrasonic Pulse Velocity (UPV) tests that are quick and inexpensive tests. This study was performed to provide data consisting of correlations between RN versus UPV and UCS for rock materials. RN and UCS and UPV tests were carried out on 66 rock specimens from 6 different rock samples in the laboratory. Linear models were used for the relations between RN and UCS and UPV because R2 values of linear model is more suitable than non-linear models. The equations proposed in this study can be used easily for the areas formed of sandstone, limestone, arkoses, and granite to pre-estimate the UCS values of the rocks

trans-Tetra­aqua­bis­(isonicotinamide-κN 1)nickel(II) bis­(3-hy­droxy­benzoate) tetra­hydrate

The asymmetric unit of the title compound, [Ni(C6H6N2O)2(H2O)4](C7H5O3)2·4H2O, contains one-half of the complex cation with the NiII ion located on an inversion center, a 3-hy­droxy­benzoate counter-anion and two uncoordinated water mol­ecules. Four water O atoms in the equatorial plane around the NiII ion [Ni—O = 2.052 (2) and 2.079 (2) Å] form a slightly distorted square-planar arrangement, which is completed up to a distorted octa­hedron by the two N atoms [Ni—N = 2.075 (3) Å] from two isonicotinamide ligands. In the anion, the carboxyl­ate group is twisted from the attached benzene ring by 8.8 (3)°. In the crystal, a three-dimensional hydrogen-bonding network, formed by classical O—H⋯O and N—H⋯O hydrogen bonds, consolidates the crystal packing, which also exhibits π–π inter­actions between the benzene and pyridine rings, with centroid–centroid distances of 3.455 (2) and 3.621 (2) Å, respectively

Trans-Tetra­Aqua­Bis­(Isonicotinamide-Κn 1)Zinc Bis­(3-Hy­Droxy­Benzoate) Tetra­Hydrate

The asymmetric unit of the title compound, [Zn(C6H6N2O)2(H2O)4](C7H5O3)2·4H2O, contains half of the complex cation with the ZnII ion located on an inversion center, a 3-hy­droxy­benzoate counter-anion and two uncoordinating water mol­ecules. Four water O atoms in the equatorial plane around the ZnII ion [Zn—O = 2.089 (2) and 2.128 (2) Å] form a slightly distorted square-planar arrangement and the distorted octa­hedral geometry is completed by the two N atoms [Zn—N = 2.117 (2) Å] from two isonicotinamide ligands. In the anion, the carboxyl­ate group is twisted from the attached benzene ring at 9.0 (2)°. In the crystal, a three-dimensional hydrogen-bonding network, formed by classical O—H⋯O and N—H⋯O and weak C—H⋯O hydrogen bonds, consolidates the crystal packing, which exhibits π–π stacking between the benzene and pyridine rings, with centroid–centroid distances of 3.458 (2) and 3.609 (2) Å. One of the two H atoms of each uncoordinating water mol­ecule is disordered over two orientations with an occupancy ratio of 0.60:0.40.PubMedScopu

Turkish validity and reliability of the Sexual Complaints Screener for Women

OBJECTIVE: The Sexual Complaints Screener for Women (SCS-W) is a brief, practical and up-to-date scale which assesses sexual problems parallel with the current diagnostic manuals. The SCS-W consists of 10 questions which assess a variety of sexual dysfunctions and potential distress experienced at the time of and the last six months leading to the evaluation. This study aims to assess the validity and reliability parameters of the Turkish version of the SCS-W. METHODS: Cross-sectional study included 352 women between the ages of 18 and 25 who voluntarily completed the survey, 316 of which were included in the analysis. Data was collected through specific questionnaires including the Female Sexual Function Index, the Short Form Health Survey (SF-36), the Turkish translation of SCS-W, and a sociodemographic form. The Cronbach Alpha Test was used to calculate the internal consistency and the Pearson Correlation Test was used for total score correlations as well as to determine cross-validity. An explanatory factor analysis was applied to identify the validity of the scale. RESULTS: The average age of participants in the study was 21.17 ± 1.87. The Cronbach alpha internal consistency coefficient of the scale was 0.895, and the correlation coefficient for most of the items was found to be higher than 0.50. Correlation analysis between the SCS-W and the FSFI total score and subscales were statistically significant. CONCLUSION: The SCS-W has credible psychometric values for validity and reliability to screen and evaluate sexual complaints. To sum up, the SCS-W is a practical assessment tool with the considerable advantages of delivering cost-effective evaluation of female sexual problems in clinical settings, research, and daily practice

Turkish validity and reliability of the sexual complaints screener for men

OBJECTIVE: To evaluate the validity and reliability parameters of the Turkish version of the Sexual Complaints Screener for Men (SCS-M) which is a promising brief measure to assess sexual problems in daily practice. METHODS: A cross-sectional study was conducted online. Data was collected through an online validated and content specific questionnaire via self-reporting. In total, 230 male participants between the ages of 18 and 25 submitted the questionnaire. SCS-M was translated into Turkish and applied with the International Index of Erectile Function, the Short Form Health Survey (SF-36). The p-value was evaluated statistically significant at p < 0.05. RESULTS: The average age of participants was 21.89 ± 2.08. The Cronbach alpha internal consistency coefficient of the scale was 0.818. Correlation analysis between SCS-M, IIEF and IIEF sub-scales were statistically significant. CONCLUSION: Turkish version of the SCS-M presented good psychometric parameters. SCS-M is a valid and reliable measure for the screening and evaluation of sexual complaints. It was additionally identified as a valuable contributor to the short measures in assessing male sexual problems in research and clinical practice