Synthesis of Cyclopropanes via Organoiron Methodology: Preparation of \u3cem\u3erac\u3c/em\u3e-Dysibetaine Cpa

The cyclopropane containing betaine, rac-dysibetaine CPa, was prepared from (1-methoxycarbonylpentadienyl)-Fe(CO)2PPh3+ by nucleophilic addition of nitromethane anion followed by oxidatively induced reductive elimination

Crystal and molecular structure of bis(8-phenylmenthyl) 2-(2-methyl-5-oxo-3-cyclohexen-1-yl)propandioate, C\u3csub\u3e42\u3c/sub\u3eH\u3csub\u3e54\u3c/sub\u3eO\u3csub\u3e5\u3c/sub\u3e• CH\u3csub\u3e3\u3c/sub\u3eCN

The X-ray crystal structure of the title compound, as crystallized from acetonitrile-water was determined. The relative stereochemistry of the cyclohexenone ring with respect to the 8-phenylmenthyl esters was determined. The title compound crystallizes in the noncentrosymmetric space group P21, with a=8.9850(10) Å, b=15.575(3) Å, c=14.478(2) Å, β=94.61(2)°, and D calc=1.118 g cm−3 for Z=2

Developing an Angled Perspective as Teacher Educators: Using Narrative Reflection to Disrupt the Funding of Identity in Teacher Education

Building capacity in teachers to teach students skillfully and respectfully across the diversity gap is complex work that requires teachers to learn to see with what we term as angled perspective. If an angled perspective is learnable, then it is teachable. Using our narratives as religiously and ethnically diverse women teacher educators, we share through our own learning and growth, how this type of analysis can contribute to coalitional building for teacher education, and thus K-12 teachers. Through our conceptualization of identity theory, positionality, and intersectionality, we argue angled perspectives contribute to solidarity work in education. We share implications for teacher educators to integrate angled perspectives into curricula across teacher preparation courses

Bilateral symmetry of distortions of tactile size perception

The perceived distance between touches on the limbs is generally bigger for distances oriented across the width of the limb than for distances oriented along the length of the limb. The present study aimed to investigate the coherence of such distortions of tactile size perception across different skin surfaces. We investigated distortions of tactile size perception on the dorsal and palmar surfaces of both the left and right hands as well as the forehead. Participants judged which of two tactile distances felt larger. One distance was aligned with the proximodistal axis (along the body), the other with the mediolateral axis (across the body). Clear distortions were found on all five skin surfaces, with stimuli oriented across the width of the body being perceived as farther apart than those oriented along the length of the body. Consistent with previous results, distortions were smaller on the palmar than on the dorsal hand surface. Distortion on the forehead was intermediate between the dorsal and palmar surfaces. There were clear correlations between distortion on the left and right hands, for both the dorsal and palmar skin surfaces. In contrast, within each hand, there was no significant correlation between the two skin surfaces. Distortion on the forehead was not significantly correlated with that on any of the other skin surfaces. These results provide evidence for bilaterally symmetric representations underlying tactile size perception

Host–Guest Complex of β-Cyclodextrin and Disulfide Form of 4-Aminothiophenol

An inclusion complex of β-cyclodextrin and 4-aminothiophenol was assembled by hydrophobic interaction of the host (β-cyclodextrin) and guest (4-aminothiophenol). The complex was isolated as crystalline solid and studied by single crystal X-ray diffraction method along with NMR and IR spectroscopy. Two cyclodextrin rings each containing one disulfide form of 4-aminothiophenol were found to pair up by hydrogen bonding of the outer rim -OH groups. The phenyl disulfide moiety of 4-aminophenyl disulfide molecule was found in the core of β-cyclodextrin, while the amino functional groups were positioned to the exterior of the cyclodextrin ring. Phenyl rings of the guest molecule from each partner of the paired cyclodextrin complex were found parallel to each other, indicating possible π-π stacking interaction between them

Synthesis of Some New Fluorinated Hexahydroquinoline and Acridinedione Derivatives in Trifluoroethanol

This article describes one-pot synthesis of new fluorinated hexahydroquinoline derivatives via unsymmetric Hantzsch reaction involving 5-trifluoromethyl-1,3-cyclohexanedione, aldehydes, acetoacetate ester, and ammonium acetate in trifluoroethanol (TFE). The reaction is simple and rapid with high yield

Economic Valuation of Ecosystem Services Provided by Dellanj Forest Using Contingent Valuation Methods

This study was conducted at Dellanj Forest in South Kordofan State, during the period 2021/2022. This paper aims to quantify the economic value of ecosystem services in Dellanj forest. Data of this analysis were collected using interview for respondents visited the Dellanj forest for one week, monthly and in holidays), 120 questionnaires were distributed to the respondents contains different questions concerning the ecosystem services provided by Dellanj forest. To supplement the primary data, the secondary data, key Informants were used in this analysis. Also, the study followed framework of ecological assessment in quantifying forest ecosystem services and management, the data analysis using statistical Package for Social Sciences. The results revealed that, regarding sex, age, education and occupation of respondent visiting Dellanj forest, 50.8% of respondent were female and the rest of them are male; 34.2% of respondents; in study area their education status was reach and studied until university. The results of the forest visits season indicated that , most of respondent visited the forest four times a month, this represented by 38.3% followed by 3 and 2 times which indicated by 25.8 and 24.2 respectively. Also, the investigation revealed that, there are four main ecosystem services provided by Dellanj forest ecosystem they were recreation, watershed protection, flooding protection and soil erosion. The results depicted that all the choices of payment which presented by the researcher to forest visitors displays positive responds from the interviewees. In addition, the respondent analysis resulted that, the flooding and soil erosion are the main services which provided by Dellanj forest and that indicated the importance of the Dellanj forest to population of Dellanj and the visitors as well. The study concluded that, the four ecosystem services which provided by Dellanj forest are very crucial for the communities resided around the forest and visitors that stated in the mount of ecosystem services payment by the respondents. The study recommended that, the value of ecosystem services must include as environmental extension messages to decision makers and community for conserving Dellanj forest. Also, the economic value of the other service provided by forest need to be investigated to rise the value of Dellanj forest ecosystem and its indirect values