Seismic Performance of Steel Pipe Pile to Cap Beam Moment Resisting Connections

INE/AUTC 13.0

Social Learning for Children with Specific Learning Disabilities

The recent interest in curriculum development has empahasized the need for a framework in which to integrate many different education goals. Heiss and Mischio have proposed three criteria for a comprehensive curriculum. Good curricula which satisfy these conditions have been developed for use in the normal school programme. However, at present there is a great need for integrated curricula which attend to the special needs of children with general or specific learning disablilities

I\u27ll Wait \u27Till the Clouds Roll By! : Song And Chorus

https://digitalcommons.library.umaine.edu/mmb-vp/1769/thumbnail.jp

Studies on the Effect of Ultra-Violet Rays upon Yeast Metabolism - I. The Effect of Ultra Violet Light upon the Medium

74. Studies on the effect Exposure of the medium (composed of optimum concentrations of salts and sugar) to ultra-violet light renders it less effective for the growth of yeast. The development of the toxicity increases with duration and intensity of irradiation. An exposure of seven hours through quartz at about l5 cm from a quartz mercury vapor lamp affects the medium in such a way that yeast will show practically no growth in the medium. The work is being continued in order to obtain quantitative results and to explain the phenomenon

A Relationship Among Neighborhood Traits, Home Sales and Mortgage Fraud: The Atlanta Market Leading into the Mortgage Crash of 2008

The U.S. Federal Bureau of Investigation (FBI) categorizes mortgage fraud as either fraud for property or fraud for profit. Fraud for profit, which includes the vast majority of cases, may involve several parties to the transaction, including professional agents such as brokers, appraisers, builders, title examiners, escrow officers, attorney, and lenders. Fraud for profit schemes usually include several purchase transactions where homes are quickly sold, with lenders and subsequent purchasers suffering the losses. Reports of mortgage loan fraud grew exponentially in the years leading up to the 2008 financial crisis, becoming one the fastest growing white-collar crimes in the United States. We examine simple correlates between mortgage fraud and the economic, credit and loan traits within the Atlanta zip codes. First, the findings for Atlanta suggest that higher home values and a lower rate of owner-occupancy lead to higher levels of mortgage fraud. Second, we find that mortgage fraud is not correlated with the proportion of non-bank lenders in a zip code. Third, we find that zip codes with more trying economic conditions, at least as measured by the unemployment rate in each zip code territory, are positively correlated with higher levels of fraud. Finally, surprisingly we find no correlation between the historic zip code level default rate and the prevalence of mortgage fraud

NMR Chemical Shifts of Trace Impurities: Common Laboratory Solvents, Organics, and Gases in Deuterated Solvents Relevant to the Organometallic Chemist

Tables of ^1H and ^(13)C NMR chemical shifts have been compiled for common organic compounds often used as reagents or found as products or contaminants in deuterated organic solvents. Building upon the work of Gottlieb, Kotlyar, and Nudelman in the Journal of Organic Chemistry, signals for common impurities are now reported in additional NMR solvents (tetrahydrofuran-d_8, toluene-d_8, dichloromethane-d_2, chlorobenzene-d_5, and 2,2,2-trifluoroethanol-d_3) which are frequently used in organometallic laboratories. Chemical shifts for other organics which are often used as reagents or internal standards or are found as products in organometallic chemistry are also reported for all the listed solvents

The separation of rare earths by ion exchange. IV. Further investigations concerning variables involved in the separation of samarium, neodynium and praseodymium

Previous papers of this series have dealt with some of the variables concerned with the separation of rare earths by means of ion exchange. It has been apparent from the first that the many variables involved should be investigated more thoroughly in order to improve the degree of separation of certain pairs of the rare earths. It was decided, therefore, to study further the effect of such variables as temperature, pH of eluant, size of resin particles and flow rate

Chemical synthesis of magnetic Fe-B and Fe-Co-B particles and chains

With an objective to develop magnetic materials with high saturation magnetization for the Magnetically Assisted Chemical Separation (MACS) process the chemical synthesis of Fe-B and Fe-Co-B alloys by reducing iron and cobalt chloride solutions with potassium borohydride has been investigated systematically. The influence of the concentration of the reactants, applied magnetic field, reaction atmosphere, and method of mixing the reactants on the microstructure, particle size, composition and magnetic properties has been studied. Both M-B (M = Fe and Co) particles and elongated chains composed of nanometer size M-B particles have been obtained depending on the reaction conditions. The Fe-B samples exhibit saturation magnetization of M{sub S} of 120--190 emu/g, remanent magnetization M{sub r} of 10--22 emu/g, and coercive field H{sub c} of 400--900 Oe. A high M{sub S} value of 190 emu/g, which is close to the theoretical value of 218 emu/g for pure Fe, has been achieved particularly for samples with well-defined chain structures. Increasing the Co content in the Fe-Co-B alloys increases the boron content and thereby decreases the crystallinity and M{sub S} values although marginal increase in H{sub c} (1,250 Oe) and M{sub r} (36 emu/g) values could be made in some Fe-Co-B compositions. The chain structure with high M{sub S} may be attractive for other magnetic separation processes as well

Cervical Vascular and Upper Airway Asymmetry in Velo-Cardio-Facial Syndrome: Correlation of Nasopharyngoscopy With MRA

Purpose Velo-cardio-facial syndrome (VCFS), the most common genetic syndrome causing cleft palate, is associated with internal carotid and vertebral artery anomalies, as well as upper airway asymmetry. Medially displaced internal carotid arteries, often immediately submucosal, present a risk of vascular injury during pharyngeal flap surgery for velopharyngeal insufficiency (VPI). We evaluate the frequency and spectrum of cervical vascular anomalies in a large cohort of VCFS patients correlating MRA with nasopharyngolaryngoscopy in detecting at risk carotid arteries. Furthermore, we assess the relationship with respect to laterality between cervical vascular patterns and the asymmetric abnormalities of these subjects’ upper airways. Methods Cervical MRAs of 86 subjects with VCFS and 50 control subjects were independently reviewed by three neuroradiologists. The course of the internal carotid and vertebral arteries was identified within the pharyngeal soft tissues. Medial deviation, level of bifurcation, dominance, anomalous origin, and vessel tortuosity were recorded. Nasopharyngoscopy examinations were available for retrospective review in 43 patients and were assessed for palatal and posterior pharyngeal wall symmetry, true vocal cord motion and size, and for the presence or absence of carotid pulsations. The endoscopic findings were compared with MRA results. Results Of the 86 subjects, 80 (93%) had one or more vascular anomalies. 42 subjects (49%) were found to have medial deviation of at least one internal carotid artery. In 24 subjects (28%) the anomalous internal carotid artery was directly submucosal; four of these were bilateral (5% of the total sample, 17% of those with a submucosal internal carotid). Other carotid anomalies included low carotid bifurcation (44 subjects or 51%), anomalous origin of the right common carotid (32 cases, or 37%), and two cases of internal carotid agenesis/hypoplasia. Vertebral artery anomalies included vessel tortuosity (34 cases, or 40%), hypoplasia (10 cases, or 12%), looping (4 cases, or 5%), and one case of a double left vertebral artery. Though patients in our study showed an asymmetric distribution of vascular anomalies, no association was found between the laterality of palatal motion, pharyngeal fullness, or laryngeal movement and structure with ipsilateral vertebral or carotid artery anomalies. Of the 33 pulsatile carotid arteries visualized at nasopharyngoscopy, only nine were found to be submucosal on MRA. In contrast, 11 submucosal carotid arteries confirmed at MRA demonstrated no visible pulsations. Positive and negative predictive values of pulsative arteries seen endoscopically for MRA confirmation of a submucosal carotid course was 27% and 79% respectively. Conclusions Carotid and vertebral artery anomalies are common in VCFS including marked medial deviation of the internal carotid artery in close proximity to the donor site for pharyngeal flap surgery. Lack of correlation between laterality of vascular anomalies and upper airway structural asymmetry in VCFS does not support the hypothesis that palatal, pharyngeal, and laryngeal anomalies are due to secondary developmental sequences caused by in utero vascular insufficiency. The presence or absence of carotid pulsations seen by nasopharyngoscopy does not correlate with the carotid arterial depth identified on MRA. Furthermore, identification of the relative medial–lateral retropharyngeal position of a submucosal carotid affords the opportunity to modify the surgical approach. These findings further support the routine use of pre-operative neck MRA in VCFS patients in surgical planning

Vitamin A and Longevity

Experiments have been conducted to determine if protein, minerals and vitamin A are of equal importance for prolongation of life. One group of rats was fed on white corn alone. White corn is known to be deficient in protein, vitamin A and minerals. Rats on the above diet lived an average of 72 days. A second group of rats received a diet consisting of white corn 88 per cent together with casein 12 per cent. They lived an average of 75 days. A third group of rats received white corn 98 per cent, and 5 per cent of salt mixture. They lived an average of 87 days. The fourth group of rats received white corn 95 per cent and 5 per cent of butter fat. All are alive at the end of 160 days. None of the animals grew. Distilled water was furnished ad. lib. to all of the animals