Baha Research Articles

Soil Microbial Biomass of Pea ( Pisium sativum cv. Little Marvel) in Response to Three Atmospheric Air Regimes at Al Baha Region, KSA

This study was conducted to determine the effect of atmospheric air on soil health in pots involving the growth of pea under two soil moisture regimes. Twelve pots were treated with three air quality treatments of urban, suburban and rural sites. In situ soil respiration increased under urban and suburban while it decreased little under rural site atmospheric conditions. These data support the relationships between the number of microorganisms in soils and carbon dioxide fluxes. Microbial biomass, metabolic quotient and crop yields or biomass were found most sensitive indicators of soil quality, which significantly varied in response to air quality and soil moisture regimes. The soil microbial biomass, metabolic quotient, and basal respiration were the most practical quality index variables; however, when using only a single predicator, microbial biomass was the most sensitive indicator of the soil quality.

Self-rated efficacy in bilateral aural atresia patients using bone-anchored hearing aid

Using questionnaires to evaluate the audiological benefit and satisfaction of bilateral aural atresia patients with bone-anchored hearing aid (Baha). Implanted Baha user questionnaire was applied to 19 patients suffering bilateral aural atresia, and 15 of the patients were evaluated with abbreviated profile of hearing aid benefit (APHAB). Glasgow children's benefit inventory (GCBI) was used to measure subjective benefit of patients under the age of 18. The Baha user questionnaire demonstrated great satisfaction. The mean Baha scores for the subdomains of ease of communication (EC), backgroud noise (BN) and revereration (RV) were decreased by 54.6 ± 10.2 (t = 20.6, P < 0.05), 46.9 ± 11.1 (t = 16.4, P < 0.05) and 58.8 ±15.4 (t = 21.4, P < 0.05) compared to the unaided scores. For the subdomain of aversiveness (AV), the Baha score was 56.7 ± 9.9 (t = 10.8, P < 0.05) higher than the unaided score. The general benefit score GCBI was 41.1 ± 13.0. Baha can significantly improve hearing ability and quality of life of patients with bilateral aural atresia.

Spectral properties of chlorines and electron transfer with their participation in the photosynthetic reaction center of photosystem II

Structural factors that provide localization of excited states and determine the properties of primary donor and acceptor of electron in the reaction center of photosystem II (PSII RC) are studied. The results of calculations using stationary and time-dependent density functional theory indicate an important role of protein environments of chlorophylls PA, PB, BA, and BB and pheophytins HA and HB in the area with a radius of no greater than ≤10 A in the formation of excitonic states of PSII RC. When the neighboring elements are taken into account, the wavelength of long-wavelength Qy transition of chlorophyll molecules is varied by about 10 nm. The effect is less developed for pheophytin molecules (Δλ ≅ 2 nm). The following elements strongly affect energy of the transition: HisA198 and HisD197 amino-acid residues that serve as ligands of magnesium atoms affect PA and PB, respectively; MetA183 affects PA; MetA172 and MetD198 affect BA; water molecules that are located above the planes of the BA and BB macrocycles form H bonds with carbonyl groups; and phytol chains of PA and PB affect BA, BB, HA, and HB. The analysis of excitonic states, mutual positions of molecular orbitals of electron donors and acceptors, and matrix elements of electron transfer reaction shows that (i) charge separation between BA and HA and PB and BA is possible in the active A branch of cofactors of PSII RC and (ii) electron transfer is blocked at the BB - HB fragment in inactive B branch of PSII RC.

Policy Analysis: CMS Approves Bilateral Baha for Children

Policy Analysis: CMS Approves Bilateral Baha for Children

A Sufi‐Jewish Dialogue: Philosophy and Mysticism in Baha Ibn Paqūda's Duties of the Heart – By Diana Lobel

A Sufi‐Jewish Dialogue: Philosophy and Mysticism in Baha Ibn Paqūda's Duties of the Heart – By Diana Lobel

The Architecture of Baha al-Din Tughrul in the Region of Bayana, Rajasthan

The Architecture of Baha al-Din Tughrul in the Region of Bayana, Rajasthan

The Life of Saladin from the Works of 'Imad Ad-Din and Baha' Ad-Din

The Life of Saladin from the Works of 'Imad Ad-Din and Baha' Ad-Din

The Life of Saladin: From the Works of ‘Imad ad-Din and Baha’ ad-Din

(1973). The Life of Saladin: From the Works of ‘Imad ad-Din and Baha’ ad-Din. History: Reviews of New Books: Vol. 2, No. 1, pp. 12-12.

The Inscription of Baha in Kafa

The Inscription of Baha in Kafa