Pregnancy outcome in patients with previous uterine rupture

BACKGROUND: To review the outcome of subsequent pregnancies in conservatively managed cases of uterine rupture. METHODS: Charts of patients with full thickness uterine rupture in the past 25 years were reviewed and information on subsequent pregnancies was extracted from maternal and neonatal charts. RESULTS: Thirty-seven patients with uterine rupture were identified; the uterus was scarred in 62.2%. Ruptures were repaired in 26 (70.3%). Twelve patients subsequently conceived (24 pregnancies), with recurrence in 8/24 (33.3%) pregnancies or 5/12 (41.7%) patients. Patients with recurrence had a shorter median interval from previous rupture (2 versus 5 years), a higher incidence of previous longitudinal ruptures (60.0% versus 0.0%), and the median gestational age at the preceding rupture was lower without reaching statistical significance (34 versus 38 weeks; p = 0.209). CONCLUSIONS: Longitudinal ruptures and short intervals between rupture and subsequent pregnancy predispose to recurrence of uterine rupture.     

Untersuchung über die Biodynamik des Klavieranschlags

Zusammenfassung Die Abhandlung ist der experimentellen Untersuchung des rhythmischen Oktaven-Klavieranschlags, die von den Autoren in den Jahren 1927/28 mittels der kymozyklographischen Methode an hervorragenden Pianistenvirtuosen durchgeführt wurde, gewidmet. Der Untersuchung wurden monotone Aufeinanderfolgerungen der Oktaven unterworfen: 1. in cresc.-dimin. und 2. in acceler.-rallent.Nach den erhaltenen Photoaufzeichnungen wurden studiert: 1. die Bewegungen der rechten Armteile (Ober-, Unterarm, Hand), 2. Änderungen der Gelenkwinkel, 3. die Momente der Resultanten der Muskelspannungen im Schulter-, dem Ellenbogen- und Handgelenk. Die Untersuchung hat die Möglichkeit gegeben, eine typische Form des Verlaufs des rhythmischen Oktavenanschlags festzustellen und seine genaue Beschreibung zu geben.Die Versuche der Änderung der Anschlagskraft haben gezeigt, daß die Bewegungsdynamik sich in Abhängigkeit von der Anschlagskraft nur quantitativ, bei konstanter Konstruktion, verändert.Die Versuche der Tempoänderung haben gezeigt, daß die Anschlagskonstruktion abhängig vom Tempo sich wesentlich verändert. Bei langsamen Tempos besteht die Bewegung aus isolierten Impulsen, bei mittleren entspricht sie den Schwingungen des zusammengesetzten Pendels, bei den schnellsten Tempos geht sie in erzwungene elastische Schwingungen vom Typus des einfachen Pendels bei elastisch-passivem Handgelenk über.Die Versuche haben festgestellt, daß bei allen Bewegungen der studierten Art in den Tempos über 3 Anschläge in der Sekunde das Fallen der Hand infolge ihres Gewichtes (Gewichtsanschlag) nicht stattfindet und aus rein mechanischen Gründen nicht stattfinden kann. In den langsamsten Tempos kommt es manchmal vor, jedoch bedeutend seltener, als man es theoretisch erwarten könnte.Die Abhandlung stellt eine erste Arbeit von der Serie, die von der Klaviersektion des St. Inst. f. Musikwissenschaft durchgeführt wird, vor, und die dem Studium des Klavieranschlags: 1. bei komplizierten Rhythmen, 2. bei Anfängern und fortgeschrittenen Lehrlingen und 3. hinsichtlich des Vergleichs der Klavierspieler verschiedener Schulen und Individualitäten gewidmet ist.     

Valorization of Rice Husk and Straw Agriculture Wastes of Eastern Saudi Arabia: Production of Bio-Based Silica,Lignocellulose, and Activated Carbon

Bio-based silica, lignocellulose, and activated carbon were simply produced via the recycling of Hassawi rice biomass waste of Al-Ahsa governorate in the eastern Saudi Arabia region using a fast chemical treatment procedure. Rice husk and rice straw wastes were collected, ground, and chemically treated with sodium hydroxide to extract silica/silicate from the dried plant tissues. The liquid extract is then treated with acid solutions in order to precipitate silica/silicate at neutral medium. Lowering the pH of the supernatant to 2 resulted in the precipitation of lignocellulose. Thermal treatment of the biomass residue under N₂ gas stream resulted in activated carbon production. Separated products were dried/treated and characterized using several physical examination techniques, such as FT-IR, SEM/EDX, XRD, and Raman spectroscopy in order to study their structure and morphology. Silica and lignocelluloses products were then preliminarily used in the treatment of wastewaters and water-desalination processes.     

Aramid-wrapped CNT hybrid sol–gel sorbent for polycyclic aromatic hydrocarbons

This work describes the preparation of an analytical microextraction sorbent using a simple and versatile sol–gel hybrid composite, i.e., aramid oligomers wrapping multi-walled carbon nanotubes (CNTs) covalently bonded to a porous silica network. To overcome the inherent shortcomings of the CNTs'' solubility and dispersion in both organic phases and in the sol–gel solution, the outer surface of the CNTs was initially functionalized with carboxylic acid groups and then reacted with both aramid oligomers and 3-aminopropyl triethoxysilane (APTES). The obtained sorbent was characterized by FT-IR, scanning electron microscopy (SEM), and thermogravimetric analysis (TGA). Using sol–gel chemistry, the functionalized CNTs were coated onto SPME fibers and used in conjunction with GC-MS for the analysis of polycyclic aromatic hydrocarbons (PAHs) in water and soil samples. Excellent repeatability (run-to-run RSD% ∼ 8) and reproducibility (fiber-to-fiber RSD% ∼ 6) were achieved in addition to low LODs (0.10–0.30 ng mL⁻¹) and noticeable recovery%. The present method of sorbent preparation led to enhanced thermal and chemical stabilities, a long sorbent lifetime and good affinity towards PAHs. Moreover, the present sorbent enhanced the extraction capability by more than 30% compared to that of commercially available PDMS counterparts.

This work describes the preparation of an analytical microextraction sorbent using a simple and versatile sol–gel hybrid composite, i.e., aramid oligomers wrapping multi-walled carbon nanotubes (CNTs) covalently bonded to a porous silica network.     

Exploring the Barriers and Motivators to Dietary Adherence among Caregivers of Children with Disorders of Amino Acid Metabolism (AAMDs): A Qualitative Study

Dietary intervention is generally accepted as the mainstay of treatment for patients with disorders of amino acid metabolism (AAMDs). However, dietary adherence to a low-protein diet is always reported as a common challenge among these patients. This study explored the perception of barriers and motivators to dietary adherence among caregivers of AAMD patients in Malaysia. Twenty caregivers of children with AAMDs receiving ongoing treatment at the genetic clinic participated in an online focus group discussion from November to December 2021. Findings showed a total of five interrelated main themes identified from focus group discussion (FGD) exploring parents’ experiences related to the management of their child’s daily diet. The barriers to dietary adherence were burden of dietary treatment, diet and dietary behavior, parenting challenges, limited knowledge related to dietary treatment, and challenges in healthcare system delivery. Key factors facilitating good dietary adherence include good knowledge of dietary treatment, parental coping strategies, social coping, and dietary behavior. In conclusion, despite the existence of several barriers to the implementation of dietary treatment, caregivers managed to use a wide range of coping strategies to overcome some, if not all, of the challenges. The important next step is to develop, in conjunction with multidisciplinary healthcare professionals, feasible implementation strategies that could address these barriers and at the same time improve the quality of life of caregivers.     

Moyamoya syndrome presenting in an adult with Down syndrome: A case report with a literature review

Moyamoya disease is an unusual occlusive cerebrovascular condition commonly seen in children, marked by stenosis of the internal carotid artery and circle of Willis, causing, cerebral ischemia. Moyamoya syndrome is a Moyamoya-like arteriopathy with risk factors including autoimmune disorders, thyroid disease, sickle cell disease, or Down syndrome. Trisomy 21 is a genetic disorder consistent with specific physical and behavioral characteristics, with intellectual impairment. We describe a rare case of Moyamoya syndrome manifesting as ischemic stroke in an adult with Down syndrome     

Modelling effects of bromide ion concentration on the formation of brominated trihalomethanes

A series of statistically‐based models have been developed for predicting the formation of individual trihalomethane (THM) species, ranging from chloroform to bromoform, as a function of various reaction conditions. These equations allow a quantitative assessment of bromide effects on overall THM formation as well as THM speciation.     

马来西亚预防控制脊髓灰质炎免疫策略的经济学评估:注射用脊髓灰质炎灭活疫苗与口服脊髓灰质炎减毒活疫苗

1背景由马来西亚卫生部和马来西亚国民大学(UKM)联合承担的研究项目,主要研究者是Dr·Syed Mohamed AI Junid,研究中心是吉隆坡总医院(GHKL)儿童研究所、UKM医院儿科病房及乌鲁冷岳区(Hulu Langat)医疗中心,研究时间自2004年1月~2006年6月。研究开始前分别获得了马来西亚卫生部     

Intracranial bifocal germinoma

Primary intracranial germ cell tumors are rare, often affecting children and young patients. Germinomas are the most common type of germ cell tumors. We present the case of a 10-year-old child, who was admitted with decreased visual acuity, asthenia, polyuro-polydipsic syndrome, and gait disorder. His biological assessment showed an hypocortisolemia and diabetes insipidus. Imaging found a bifocal process in the suprasellar and pineal region, suggestive of a bifocal germinoma. Imaging data and the positivity of human chorionic gonadotrophin in the cerebrospinal fluid were in favor of the diagnosis of bifocal germinal tumor confirmed by biopsy. Currently the patient is hospitalized in pediatric oncology department.The diagnosis of germ cell tumors is based on imaging, tumor marker assays, and biopsy. They are treated by radiation therapy alone or in combination with reduction chemotherapy, and surgery for tumor residues. The location of the tumor usually makes surgery difficult.