Solvent Tuning Excited State Structural Dynamics in a Novel Bianthryl.

Symmetry breaking charge separation (SBCS) is central to photochemical energy conversion. The widely studied 9,9-bianthryl (9,9'BA) is the prototype, but the role of bianthryl structure is hardly investigated. Here we investigate excited state structural dynamics in a bianthryl of reduced symmetry, 1,9-bianthryl (1,9'BA), through ultrafast electronic and vibrational spectroscopy.

Synthesis and Characterization of Manganese-Modified Black TiO Nanoparticles and Their Performance Evaluation for the Photodegradation of Phenolic Compounds from Wastewater.

The release of phenolic-contaminated treated palm oil mill effluent (TPOME) poses a severe threat to human and environmental health. In this work, manganese-modified black TiO (Mn-B-TiO) was produced for the photodegradation of high concentrations of total phenolic compounds from TPOME. A modified glycerol-assisted technique was used to synthesize visible-light-sensitive black TiO nanoparticles (NPs), which were then calcined at 300 °C for 60 min for conversion to anatase crystalline phase.

Synthesis, Surface Nitriding and Characterization of Ti-Nb Modified 316L Stainless Steel Alloy Using Powder Metallurgy.

The powder metallurgy (PM) technique has been widely used for producing different alloy compositions by the addition of suitable reinforcements. PM is also capable of producing desireable mechanical and physical properties of the material by varying process parameters. This research investigates the addition of titanium and niobium in a 316L stainless steel matrix for potential use in the biomedical field.

Nature Inspired MIMO Antenna System for Future mmWave Technologies.

In this work, a new Multiple Input Multiple Output (MIMO) antenna system with a novel shape inspired by nature is proposed for Fifth-Generation (5G) communication systems. The antenna is designed on a Rogers 5880. The dielectric constant of the substrate is 2.

The future of transcranial magnetic stimulation in neuroscience and neurology in the Middle East.

Objective: Transcranial magnetic stimulation (TMS) is a noninvasive technique for brain stimulation often used as a diagnostic and therapeutic therapy in neuroscience and psychiatry for different diseases including epilepsy, stroke, multiple sclerosis, and treatment-resistant major depressive disorders, such as autism and schizophrenia.

Materials And Methods: Recent studies have shown the enhanced benefits of using TMS for its potential to provoke changes in the physiological processing of the human brain.

Results: In the current review article, emphasis will be placed on both the applications of TMS as well as the different types of TMS used to benefit subjects with epilepsy, stroke, and multiple sclerosis.

Dorsal and Ventral Dimelia in the Same Hand in A Patient with Severe Ulnar Ray Deficiency: A Case Report.

Dorsal dimelia (the appearance of dorsal hand structures on the palmar aspect of the hand) and ventral dimelia (the appearance of ventral hand structures on the dorsal aspect of the hand) are rare congenital anomalies of the hand. None of the previously reported cases had combined dorsal and ventral dimelia in the same patient. Here, we report a case of severe ulnar ray deficiency.

Brain Training Games Enhance Cognitive Function in Healthy Subjects.

BACKGROUND Brain training games (BTG) are believed to play a major role in improving cognitive functions. The current study evaluated if BTG showed positive impact on attention and memory functions compared with baseline visit in healthy subjects. MATERIAL AND METHODS The study was carried out from October 2015 until April 2016 in the Department of Physiology, College of Medicine, King Saud University and in King Khalid University Hospital (KKUH), Riyadh, Saudi Arabia.

A new technique of flexor profundus repair in the distal part of zone I: inclusion of the palmar plate.

Flexor profundus lacerations in the distal part of zone I are usually treated by tendon reinsertion into bone. We present a modified technique in which three 'figure of eight' sutures include the palmar plate in the distal purchase. Inclusion of the palmar plate significantly strengthens the tensile strength of the repair and this was confirmed biomechanically in an experimental study.

Obstetric brachial plexus palsy in newborn babies of diabetic and non-diabetic mothers.

Compared to non-diabetic mothers, diabetic mothers are known to deliver larger babies who are at higher risk for shoulder dystocia and obstetric brachial plexus palsy. The intrapartum forces applied during delivery of larger babies are expected to be higher. Hence, the chances of these babies for good spontaneous recovery are expected to be lower; and this is a generally believed hypothesis.

Obstetric brachial plexus palsy: a comparison of affected infants delivered vaginally by breech or cephalic presentation.

In this retrospective study we compared obstetric brachial plexus palsy (OBPP) in two non-operated groups of newborn babies delivered vaginally by breech or cephalic presentation. There were 35 cases of OBPP in the breech group and 663 cases in the cephalic group. The former group was more likely to develop upper Erb's palsy while the latter group was more likely to develop total palsy.

Narakas classification of obstetric brachial plexus palsy revisited.

Narakas classified babies with obstetric palsy into four groups: upper Erb's, extended Erb's, total palsy, and total palsy with a Horner. Over the last 15 years, it was noted at our obstetric palsy clinic that good spontaneous recovery in newborns with extended Erb's palsy (C5, C6, C7 injury) was more likely if they recovered active wrist extension against gravity before 2 months of age. A hypothesis was made that newborns with extended Erb's palsy (Narakas Group II) may be subclassified into two groups according to this 'early recovery of wrist extension.

A two-stage full-arch ridge expansion technique: review of the literature and clinical guidelines.

Ridge expansion techniques have been acknowledged to offer several advantages in the correction of ridge deformities. The expanded defect heals in a similar manner to an extraction socket. In selected cases patients can wear their dentures after surgery.