Understanding and Practice of Discipleship Among the Members of the Michigan Conference of Seventh-day Adventists in Light of a Biblical Model

This descriptive study uses a biblical Rabbi-Witness Discipleship Model to answer the following question: To what extent, if any, is the current understanding and practice of discipleship and witnessing biblically founded among the members of the MCSDA? [Michigan Conference of Seventh-day Adventists]https://digitalcommons.andrews.edu/hrsa/1193/thumbnail.jp

Design and Prototyping of a Superheated Steam Electric Powered Propulsion System for CubeSats

A water-based ResistoJet type propulsion system is designed for its use in CubeSats larger than 6U as an orbital maneuvering system. Designed to be self-contained in 1U, its electrically powered evaporator and high-temperature superheater systems are fed by a self-pressurized liquid water tank, thus characterized by simplicity due to the lack of pumps or external pressurizing systems. Moving parts and the use of toxic materials are minimized. The analytical and parametric models introduced allow an engineer to introduce the changes needed to adapt the propulsion system to different missions, maintaining efficiency. Steady-state thermodynamic and heat transfer analytical models are used, defining dimensions and materials of the inner components to meet the power and energy restrictions of a typical CubeSat\u27s power system. A future test plan is presented, taking advantage of the vacuum chamber available in the university. This allows for the characterization and validation of the different propulsion system components. Following the pandemics induced restrictions, our test plan will continue. Conversations for further TRL development are underway

Memory Functioning in Obsessive-Compulsive Disorder

A number of studies have reported neuropsychological deficits in obsessive-compulsive disorder (OCD). These have mainly implicated frontal or temporal dysfunction. In this study, we compared the performances of OCD patients and normal subjects using a factorial interpretation of the Wechsler Memory Scale. Our results do not demonstrate significant memory impairment in OCD patients but point to the possibility of frontal lobe dysfunction as a factor in the pathophysiology of OCD

C1–C2 Instability Associated with Periodontoid Inflammatory Tissue Leading to Subarachnoid Hemorrhage: A Case Report and Review of the Literature

Abstract The authors present a case of atlantoaxial instability associated with C1–C2 inflammatory tissue leading to subarachnoid hemorrhage. A 65-year-old male patient arrived in June 2011 to the emergency unit for cervical pain and fever. Imaging studies documented periodontoid pseudotumor at C1–C2 level. Infective disease was suspected; the patient was therefore hospitalized and treated with antibiotics. Subsequent computed tomographic (CT) scans revealed C1–C2 instability. In August, the patient showed acute neurological deterioration and coma. Urgent brain CT revealed a hemorrhagic lesion which caused compression on the medulla oblongata, subarachnoid hemorrhage, and ventricular dilatation. An external ventricular drainage was positioned. Angio-CT and angiography did not show any vascular abnormalities. Cervical magnetic resonance imaging documented a solid tissue lesion between the atlas arch and axis. The lesion was associated with an epidural and subdural hematoma, exerting compression on brainstem. The patient underwent posterior decompression and C1–C2 fusion according to Harms technique in October, with significant clinical improvement. The authors present a case of atlantoaxial instability associated with a periodontoid pseudotumor at C1–C2 level determining dural sac compression. The patient showed an acute neurological deterioration caused by bleeding of the solid component of the cervical lesion. Hemorrhage of the solid component of periodontoid masses linked to atlantoaxial instability has not yet been reported in literature. To the best of our knowledge, this is the first case of C1–C2 instability with periodontoid pseudotumor leading to subarachnoid hemorrhage

Analysis of a topside ionospheric model using GPS and ionosonde observables

Ground-based vertical incidence soundings are well suited to model the bottom-side ionosphere but are not so good for dependably modelling the topside ionosphere. This study aims to combine vertical incidence sounding and dual-frequency GPS measurements to reconstruct the topside profile. The reconstruction technique relays on the use of the so-called vary-Chap approach that use an α-Chapman function with a continuously varying scale height. We tested our technique with ionograms and GPS observations recorded at Ebro observatory, Spain (geomagnetic coordinates 43.6°N and 80.9°E). The contribution of the topside ionosphere to the vertical TEC was calculated as the difference between the vertical TEC estimated from GPS measurements and the contribution of the bottom-side ionosphere estimated by integration of the electron density obtained from ionograms. The obtained topside vertical TEC were used to estimate the parameters of the vary-Chap function that represents the topside profile, namely the transition height where the dominant ion species change from O + to H + , the scale height at the transition height, and the shape factor that controls the steepness of the O + to H + transition. The results are analyzed for solstices and equinoxes for a high solar activity year. The values obtained for the transition height are in agreement with those derived by other author. The topside profile seems to merge swiftly with an empirical plasmasphere model based on Radio Plasma Image measurements.Fil: Meza, Amalia Margarita. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Brunini, Claudio Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Gularte Scarone, Angela Erika. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Mosert, Marta Estela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan. Complejo Astronómico "El Leoncito". Universidad Nacional de Córdoba. Complejo Astronómico "El Leoncito". Universidad Nacional de la Plata. Complejo Astronómico "El Leoncito". Universidad Nacional de San Juan. Complejo Astronómico "El Leoncito"; Argentin

Synthesis of Cylcotetrapeptides Analogues to Natural Products as Herbicides

The synthesis of cyclotetrapeptides analogues of the natural productos tentoxin and versicotide D, was achieved in good yield by solid phase peptide synthesis (SPPS) of their linear precursors and solution phase cyclization. All the cyclopeptides and several open precursors were evaluated as herbicides. Five cyclopeptides and five lineal peptides showed a significant inhibition (> 70 %) of Rye grass seed’s radicle growth at 67 μg/mL. The evaluation at lower concentration (4-11 M), indicates two cyclopeptides analogs of tentoxin, which present one (N-Methyl-D-Phe), and two NMe -AA (N-Methyl-Ala and N-Methyl-Phe), respectively, as the most active of them showing remarkable phytotoxic activity. In two cases the open precursors are as active as their corresponding cyclopeptide. However, many linear peptides are inactive and their cyclization derivatives showed herbicidal activity. In addition, two cyclopeptide analogues of versicotide D, showed improved activity than the natural product. The results indicate that the peptide sequence, the amino acid stereochemistry and the presence of N-methyl group have important influence on the phytotoxic activity. Moreover, several compounds could be considered as lead candidates in the development of bioherbicides.Agencia Nacional de Investigación e InnovaciónUniversidad de la República. Comisión Sectorial de Investigación Científic