NMR spectroscopy experiments, molecular dynamics simulations, and theoretical chemistry calculations provide insight into the structural and energetic determinants of the distinct binding of clenpenterol enantiomers to two cyclodextrins and the migration order reversal of their respective inclusion complexes in capillary electrophoresis.
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http://dx.doi.org/10.1039/c7cp04761d | DOI Listing |
Plast Reconstr Surg
January 2025
Private Practice, Ghavami Plastic Surgery, Beverly Hills, California.
Introduction: Rhinoplasty surgeons often rely on tip grafting in order to add volume in the infratip, mid-tip or supratip areas. The author has developed a novel tip graft, from the repurposed, pliable cephalic margins of the lower lateral cartilage lateral crura. The main purpose of the soft triangle tension graft (STTG) is to control tip tension of the medial crura, buttress the soft triangles and add a small degree of volume to the tip.
View Article and Find Full Text PDFChemistry
January 2025
TU Chemnitz: Technische Universitat Chemnitz, Insitut für Chemie, Straße der Nationen 62, 09111, Chemnitz, GERMANY.
The intramolecular migration of three hydrogen atoms from one moiety of a gaseous radical cation to the other prior to fragmentation is an extremely rare type of redox reaction. Within the scope of this investigation, this scenario requires an ionized but electron-rich arene acceptor bearing a para-(3-hydroxyalkyl) residue. The precise mechanism of such unidirectional 3H transfer processes, including the order of the individual H transfer steps, has remained unclear in spite of previous isotope labelling and recent infrared ion spectroscopy (IRIS) studies.
View Article and Find Full Text PDFFront Immunol
January 2025
The Third Affiliated Hospital of Beijing University of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
Background: Cervical cancer is the fourth most common cancer in women globally, and the main cause of the disease has been found to be ongoing HPV infection. Cervical cancer remains the primary cause of cancer-related death despite major improvements in screening and treatment approaches, especially in low- and middle-income nations. Therefore, it is crucial to investigate the tumor microenvironment in advanced cervical cancer in order to identify possible treatment targets.
View Article and Find Full Text PDFFront Public Health
January 2025
CSE Caritas, Essen, Germany.
While the impact of racism on healthcare interactions has been researched extensively in many parts of the world, substantive studies on healthcare-related racism in Europe, and particularly in Germany, remain scarce. This paper builds on a study that applies Community-Based Participatory Research (CBPR) and aims to explore healthcare users' experiences of racism within German healthcare. Community members were trained as peer researchers and given support as they conducted a total of six focus group discussions that involved a total of 14 study participants: these participants were organized into two subsamples of seven participants each (subsample one: Black, African, Afro-diasporic healthcare users; subsample two: healthcare users perceived or self-describing as Muslim), and each subsample had three focus group discussions.
View Article and Find Full Text PDFSci Rep
January 2025
College of Mining, Guizhou University, Guiyang, 550025, Guizhou, China.
In order to solve the problems of serious deformation and difficult support of roadway surrounding rock in the process of gob-side entry driving, taking 230,708 working face of Huopu Mine as the engineering background, the migration characteristics of overburden rock and the stress distribution of surrounding rock before and after roof cutting in the process of gob-side entry driving were studied by means of theoretical analysis, similar simulation test and field measurement. The results show that: ① the establishment of lateral suspension mechanical model analysis found that, with the increase of coal seam dip angle, the reduction of the coal pillar bearing capacity before and after cutting the top gradually decreases, the dip angle of coal seam is 30°, Compared with the reduction of coal pillar bearing capacity before roof cutting is 2164 KN; with the increase of the overburden rock caving angle, the reduction of the coal pillar bearing capacity before and after cutting the top increases continuously, the caving angle of overburden rock is 63°, Compared with the reduction of coal pillar bearing capacity before roof cutting is 2218 KN. ② After the implementation of roof cutting and cutting off the overhanging roof structure, the stress of the surrounding rock of the coal pillar gang in the roadway has significantly decreased by 18.
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