Quantum Valley Hall Effect without Berry Curvature.

The quantum valley Hall effect (QVHE) is characterized by the valley Chern number (VCN) in a way that one-dimensional (1D) chiral metallic states are guaranteed to appear at the domain walls (DW) between two domains with opposite VCN for a given valley. Although in the case of QVHE, the total Berry curvature (BC) of the system is zero, the BC distributed locally around each valley makes the VCN well defined as long as intervalley scattering is negligible. Here, we propose a new type of valley-dependent topological phenomenon that occurs when the BC is strictly zero at each momentum.

Anthropometric indices in older adults with and without Locomotive Syndrome.

Background: Locomotive syndrome is a major challenge for older adults, and anthropometric indices can greatly affect the musculoskeletal system. This study aimed to compare the anthropometric indices between older adults with and without locomotive syndrome.

Methods: This descriptive-analytical study was performed on 211 older adults using random cluster sampling from a population of over-60 individuals covered by comprehensive health service centers in Sari in Autumn, 2021.

Self-Rated Health and its Impact on Survival of Older Adults.

Background: Self -rated health (SRH) is a subjective assessment of health status that results from asking a question as "How do you assess your health?". The aim of this study was to determine the value of SRH for survival of older adults.

Materials And Methods: This cohort study was conducted among a population aged 60 years and over living in the north region of Iran.

Adherence to the Mediterranean diet in patients with psoriasis and its relationship with the severity of the disease: A case-control study.

Background And Aim: Psoriasis is a prevalent chronic inflammatory skin condition, and the Mediterranean diet is often recommended for its health benefits, particularly its ability to mitigate chronic inflammation. This study sought to examine the extent to which psoriasis patients adhere to the Mediterranean diet and to explore its correlation with the severity of their condition.

Methods: Seventy-one psoriasis patients and 71 age- and sex-matched healthy controls were enrolled the study and filled a standard questionnaire of adherence to the Mediterranean diet.