Evaluation of Alternative Methods to Obtain Specific Gravity of Coarse Aggregate, MLR-89-7, 1990

AASHTO has a standard test method for determining the specific gravity of aggregates. The people in the Aggregate Section of the Central Materials Laboratory perform the AASHTO T-85 test for AMRL inspections and reference samples. Iowa's test method 201B, for specific gravity determinations, requires more time and more care to perform than the AASHTO procedure. The major difference between the two procedures is that T-85 requires the sample to be weighed in water and 201B requires the 2 quart pycnometer jar. Efficiency in the Central Laboratory would be increased if the AASHTO procedure for coarse aggregate specific gravity determinations was adopted. The questions to be answered were: (1) Do the two procedures yield the same test results? (2) Do the two procedures yield the same precision? An experiment was conducted to study the different test methods. From the experimental results, specific gravity determinations by AASHTO T-85 method were found to correlate to those obtained by the Iowa 201B method with an R-squared value of 0.99. The absorption values correlated with an R-squared value of 0.98. The single operator precision was equivalent for the two methods. Hence, this procedure was recommended to be adopted in the Central Laboratory.

Soil Tracking Paint Test, MLR-89-13, 1989

A new paint testing device was built to determine the resistance of paints to darkening due to road grime being tracked onto them. The device consists of a tire rotating on a sample drum. Soil was applied to the tire and then tracked onto paint samples which were attached to the drum. A colorimeter was used to measure the lightness of the paints after being tracked. Lightness is measured from 0 (absolute black) to 100 (absolute white). Four experiments were run to determine the optimum time length to track a sample, the reproducibility, the effects of different soils, and the maximum acceptable level for darkening of a paint. The following conclusions were reached: 1) the optimum tracking time was 10 minutes; 2) the reproducibility had a standard deviation of 1.5 lightness units; 3) different soils did not have a large effect on the amount of darkening on the paints; 4) a maximum acceptable darkness could not be established based on the limited amount of data; and 5) a correlation exists between the paints which were darkening in the field and the paints which were turning the darkest on the tracking wheel.

Webster County, Township 89 North Range 27 West

Des Moines River Plat Maps.

Webster County, Township 89 North Range 28 West

Des Moines River Plat Maps.

Evaluation of the Baladi Indirect Tensile Apparatus, MLR-89-08, 1990

Dr. Gilbert Y. Baladi of Michigan State University has developed a new device intended for reliable determination of asphalt concrete mechanical properties such as Poisson's ratio, resilient modulus, and indirect tensile strength. The device is the result of an effort to improve upon procedures and equipment currently available for evaluation of mechanical properties. A duplicate of this device was fabricated in the Iowa Department of Transportation, Materials Lab Machine Shop in 1989. This report details the results of an evaluation of the effectiveness of the device in testing Marshall specimens for indirect tensile strength as compared to results obtained with standard equipment described in AASHTO T-283. Conclusions of the report are: l. Results obtained with the Baladi device average 6 to 8 percent higher than those obtained with the standard device. 2. The standard device exhibited a slightly greater degree of precision than did the Baladi device. 3. The Baladi device is easier and quicker to use than the standard apparatus. 4. It may be possible to estimate indirect tensile strength from the stability/flow ratio by dividing by factors of 1.8 and 1.5 for 50 blow and 75 blow mixes respectively.

Hydraulic Cement Grout Testing, MLR-89-14, 1990

Currently, hydraulic cement grouts are approved for Iowa Department of Transportation projects on the basis of a pullout test. However, other properties of the grouts should be evaluated. Therefore, this research was initiated to develop criteria to better evaluate hydraulic cement grouts. Fourteen grouts were tested for compressive strength, time of set, durability, consistency and shrinkage. Tested grouts all yielded compressive strengths higher than 3000 psi at 7 days and durability factors were well above 70. Time of set and consistency was adequate. The testing showed most grouts tested shrank, even though tested grouts were labeled non-shrink grouts. For many applications of grouts such as setting in anchor bolts and as a filler, minor shrinkage is not a problem. However, for some critical applications, shrinkage cannot be tolerated. The proposed Instructional Memorandum will identify those grouts which do not excessively shrink or expand in the tests used. Based on test results, criteria for evaluation of hydraulic cement grouts have been recommended. Evaluation consists of tests for compressive strength, time of set, durability, consistency, shrinkage and pullout test.

6 humoreskia [op. 87 ja 89]

Soitinnus: viulu, orkesteri.

Birds in the morning : konsertto huilulle ja orkesterille, op. 89

Soitinnus: huilu, orkesteri.

Kadettikurssi 89 ohjaajalinjan suhtautuminen pelastautumiskoulutukseen varusmiehenä ja neljännen vuosikurssin kadettina

Tämän tutkimuksen tarkoituksena oli selvittää lentokadettien asenteita ja motivaatiota pelastautumiskoulutusta kohtaan, sekä sitä kuinka ne ovat muuttuneet koulutuksen edettyä varusmiesajoista kadettien valmistumisen kynnykselle. Tutkimuksen tarkoituksena oli myös selvittää, minkälaisina kurssilaiset pitivät omia selviytymismahdollisuuksiaan varusmiehenä ja minkälaisina he pitävät niitä neljännen vuosikurssin kadettina. Tutkimukseen osallistui 11 kadettikurssi 89:n kadettia, jotka opiskelevat ilmavoimien ohjaajalinjalla. Kaikki 11 kadettikurssin 89:n kadettia ovat käyneet varusmiespalveluksensa ohjaajan alkeiskurssi (OAK) 76:lla. Aineisto kerättiin teemahaastattelun avulla ryhmähaastattelumuotoa käyttäen. Kaikki tutkimukseen osallistuneet kadetit olivat haastattelussa yhtä aikaa. Haastattelussa kurssilaiset kertoivat omia mielipiteitään ja kokemuksiaan haastattelijan laatimien teema-alueiden puitteissa. Lisäksi tutkimuksessa käytettiin valmista materiaalia, joka on kerätty alkukeväästä 2002 OAK 76:n suorittaneilta ohjaajakadeteilta varusmiehenä käydyn pelastautumisharjoituksen jälkeen. Tutkimus oli kvalitatiivinen tapaustutkimus, jonka aineisto analysoitiin impressionistisesti. Tutkimuksen tulokset osoittavat suhtautumisen pelastautumiseen muuttuvan myönteiseen suuntaan koulutuksen edetessä. Vaikka pelastautumiskoulutusta ei edelleenkään koeta miellyttäväksi, pitävät useimmat tutkimukseen osallistuneet sitä välttämättömän tärkeänä osana lentäjän koulutusta. Tutkittavat arvioivat omien selviytymismahdollisuuksiensa olevan nyt paremmat kuin ne olivat varusmiehenä. Tutkimuksen tuloksia vahvistavat talvipelastautumiskoulutuksen jälkeen kadettien kanssa käydyt keskustelut.

Suksilla poikki Grönlannin: kertomus norjalaisen Grönlannin-retkikunnan matkasta 1888-89

Varustettu 164 kuvalla ja kartoilla. - Ilmestyi 10 vihossa

Children at psychiatric risk and their families in Bucharest, in the context of 25 years of changes after December 89’ Romanian Revolution

The aim of the present dissertation was to capture a picture of child and adolescent mental health in Romania, in the context of almost 25 years of changes following the Romanian Revolution of December ’89. A three-part study was carried out in order to provide consistent answers to the pre-defined objectives: to appraise the development of child and adolescent mental health services in Romania (Part I), to explore the characteristics of clinically-referred patients in a Romanian child and adolescent psychiatry department (Part II), to examine the children’s mental health state and its connections with family functioning and associated risk factors (Part III). A multi-method research approach was used, comprising one qualitative analysis and two quantitative research studies. Part I consisted of a comparative qualitative analysis of the answers given by 10 mental health professionals at a 12-questions open ended interview about the current situation in child and adolescent mental health in Romania, on three topics: changes, challenges, solutions. Part II involved a descriptive quantitative analysis of certain variables (e.g. age, gender, primary diagnosis, co-morbidities, time of hospitalization) conducted on the patients who had been admitted to the Child and Adolescent Psychiatry Department at “Prof. Dr. Alexandru Obregia” Psychiatry Hospital, Bucharest in 1991 and in 2013. Part III was conducted on 342 subjects enrolled in two clinical groups and one school group, this study being performed through a cross-sectional analysis on multi-informant child and adolescent mental health problems and competencies (CBCL, YSR, SDQ P, SDQ SR) and their interrelation with household information (HQ) and family functioning (FAD). Outlining the results it can be stated that: 1) The CAMH System in Romania is definitely set on the path of reorganization, including a higher involvement of beneficiaries and of the community. 2) The characteristics of the admitted patients have changed significantly during the last almost 25 years since `89 December Revolution, under the influence of word wide trends in child psychiatry and of administrative aspects of the mental health network in Romania. 3) The rates of main diagnoses and co-morbidities confirm the reports in literature, with Autism Spectrum Disorder being the most frequent childhood psychiatric disorders in this study. 4) The children’s mental health problems in the psychiatry group are comparable to those reported for other clinical populations. 5) Significant score differences were observed according to various household features and also meaningful associations between a child’s clinical status and different aspects of family functioning. The Romanian Child and Adolescent Psychiatry has started to adopt the norms and standards of the European Union. In the 25 years that have elapsed after the 1989 Revolution, many changes have occurred in Romanian CAMH, but many unresolved issues have also risen. Therefore, the major contribution of this thesis is that it provides a coherent and updated overview of the present-day situation from three different perspectives- those of mental healthcare professionals, the one observed in clinical patients and the one reported by children’s families.

Meditationes sancti evangelii 89

Invokaatio: Deo duce.