Optical Memory, Switching, and Neuromorphic Functionality in Metal Halide Perovskite Materials and Devices.

Metal halide perovskite based materials have emerged over the past few decades as remarkable solution-processable optoelectronic materials with many intriguing properties and potential applications. These emerging materials have recently been considered for their promise in low-energy memory and information processing applications. In particular, their large optical cross-sections, high photoconductance contrast, large carrier-diffusion lengths, and mixed electronic/ionic transport mechanisms are attractive for enabling memory elements and neuromorphic devices that are written and/or read in the optical domain.

A Prospective Study Examining Trigger Factors and Hormonal Abnormalities in Adult Female Acne.

Background: Numerous triggers have been implicated in adult female acne including endogenous (hormonal dysfunction and genetic predisposition) and exogenous causes (drugs, cosmetics, sunscreens, stress, and smoking).

Aims: To evaluate the role of various trigger factors in adult female acne and to analyze the androgenic hormone pattern including anti-Mullerian hormone (AMH) in these patients.

Materials And Methods: Patients having acne of age ≥25 years were analyzed using a pre devised proforma to elicit trigger factors while the severity was graded using the Global Acne Grading System (GAGS).

Scaling, rotation, and channeling behavior of helical and skyrmion spin textures in thin films of Te-doped CuOSeO.

Topologically nontrivial spin textures such as vortices, skyrmions, and monopoles are promising candidates as information carriers for future quantum information science. Their controlled manipulation including creation and annihilation remains an important challenge toward practical applications and further exploration of their emergent phenomena. Here, we report controlled evolution of the helical and skyrmion phases in thin films of multiferroic Te-doped CuOSeO as a function of material thickness, dopant, temperature, and magnetic field using in situ Lorentz phase microscopy.

A study comparing the clinical and hormonal profile of late onset and persistent acne in adult females.

Background: Adult acne has been classified into two major subtypes: "persistent acne" and "late onset acne". A surrogate marker of hyperandrogenism (HA) in adult female acne is the presence of clinical signs of HA and biochemical hyperandrogenemia. We compared the clinical and hormonal profiles of the two acne subtypes and evaluated the likely source of androgen excess - ovarian or adrenal.