The purpose of this study was to investigate the utilization level of forecasting methods in contract foodservice management companies. Questionnaires were distributed and collected from 30 foodservice management companies contracted with universities and 49 university foodservices in Seoul and Kyungki area. Statistical data analysis was performed using SPSS/WIN 10.0 based on the production records of Yonsei University foodservices and the weather reports from a meteorological observatory. The results of this study were as follows: 1) The objectives of the fore-casting systems were identified as saving costs through eliminating the leftover, meeting the customer demands, and improving efficiency in food preparation.2) All of the university foodservices were already performing the forecasting methods but in foodservice management companies as a whole,89.7 percents were applying the method and only 55.2 percents had the separate forecasting department. 3) A large number of foodservice staffs in the head office (65.5%) answered that they often utilized intuitive estimates based on the past experiences and records for forecasting while 65.3% managing staffs in the university foodservices answered the same.4) Both in the head office and university foodservices, actual number of meals served were recorded. In the head office, mostly estimated numbers and actual numbers of meals were recorded while estimated, prepared, and actual numbers of meals served were recorded for most of the cases in university foodservices. 5) The primary factors considered for forecasting were the actual production records for the last month, the customer preference for the selected menu items, and the specific day of the week.
Data Interpretation, Statistical ; Forecasting* ; Head ; Meals ; Surveys and Questionnaires ; Seoul ; Weather

OBJECTIVE: The purpose of this study is to evaluate the efficacy of ferritin-folate-cyanocobalamin supplementation for prevention of anemia during pregnancy. METHODS: The authors conducted a clinical investigation on 50 pregnant women from 20th to 36th gestational weeks. The cobination of cyanocobalamin coenzyme 500mg, folic coenzyme 800mcg, and ferritin 20mg constituted the supplementation. The parameters examined in first trimester as baseline, before treatment(at 20th weeks), and after treatment(at 36th weeks) were : hemoglobin, hematocrit, ferritin, mean corpuscular hemoglobin(MCH), mean corpuscular hemoglobin concentration(MCHC), mean corpuscular volume(MCV), red blood cell count(RDW), folic acid, and vit. BPaired sample t-test was used for comparison. RESULTS: The results indicated a significant increase in the value of hemoglobin(p<0.05) and hematocrit(p<0.01) in comparison to before and after the treatment. The values of serum ferritin, folic acid, vitamin Bwere increased after the treatment compared to those of before the treatment, though there was no statistical significance. The results of MCV, MCH, MCHC, and RDW showed no statistically significant in comparison to before and after the treatment. CONCLUSIONS: These data indicate that supplementing ferritin 20mg-folate 800mcg-cyanocobalamine 500mcg per day from 20th to 36th weeks' gestation can increase values of hemoglobin, hematocrit, and ferritin concentration and can be cosidered as an appropriate method to prevent iron deficient anemia. It also might increase the value of folic acid and vitamin B12, concentration, but further study is stiU needed to determine whether the supplementation of folate and cyanocobalamine in combination with iron can have better eflicacy than iron alone in prevention of iron deficiency anemia.
Anemia* ; Anemia, Iron-Deficiency ; Erythrocyte Indices ; Erythrocytes ; Female ; Ferritins* ; Folic Acid* ; Hematocrit ; Humans ; Iron ; Pregnancy Trimester, First ; Pregnancy* ; Pregnant Women ; Vitamin B 12* ; Vitamins

Over 26 kinds of tablets and capsules, such as Tetracycline, Quinidine and Potassium preparations were reported to cause esopbageal ulcerations, eharacterized in various size, shape and number, ind sually in mid-esophagus, Recently authors experienced 10 cases of drug-induced esophageal ulcerations due to antibiotics and antiinflammatory agents such as Tetracycline, Aspirin, etc. Four cases were men and six were women. Four cases were in third dades, three in fourth cleeades, two in fifth decades and one in sixth decades. Presenting symptoras were odynophagia(4/10), dysphagia(3/10), substernal pain(7/10) and epigastric pain(3/10). Endoscopic examination of the esophgus showed single or multiple, small and shallow ulcers on the mid-esophgeal mucosa at the level of 30cm from the ineisor in eight cases, one Iarge and deep ulcer at the level of 40cm from incisor in one patient and one amall, shallow and one large, deep ulcers at the same time. in one patient The shape of alcers were various from a round to a large horseshoe shaped one. The clinical course was mild without complications. It was suggested that drug-induced esophsgeal ulcers with antibiotics and antiinflammatory agents could be found frequently and they had benign and mild clinicalc ourse,
Anti-Bacterial Agents ; Anti-Inflammatory Agents ; Aspirin ; Capsules ; Female ; Humans ; Incisor ; Male ; Mucous Membrane ; Potassium ; Quinidine ; Tablets ; Tetracycline ; Ulcer*

PURPOSE: To evaluate the usefulness of double injection of a vasoactive drug in penile Doppler ultrasonography for the diagnosis of vasculogenic impotence. MATERIALS AND METHODS: Eighty-four consecutive cases (bilateral sides) of 42 patients with suspected vasculogenic impotence were included in our study. We used computed sonography (Acuson, USA), with a 7 MHz linear array transducer. After the first intracavernosal injection of the vasoactive drug (10 ug of prostagladin E1), peak systolic velocity (PSV) and end diastolic velocity (EDV) were measured three times. According to mean PSV and EDV, the patients were classified into four groups : arteriogenic impotence (AI;N=29), venogenic impotence (VI;N=28), AI associated with VI(N=14), and normal(N=13).After the second injection, PSV and EDV were remeasured, using the same method. Mean velocities of the first injection were compared with those of the second, and the paired t-test was used to analyze the results. the extent to which patients were reclassified after the scecond injection we noted. RESULTS: In all four groups, PSV measured after the second injection was significantly different from PSV after the first (p=0.0001, 0.0001, 0.0010, 0.0072); except in the normal group, EDV measured after the second injection was not different from EDV after the first (P=0.9815, 0.0654, 0.0950, 0.0057). After the second injection, the numbers of patients reclassified into other groups were as follows : AI, 11 (38%); VI, 6 (21%); AI associated with VI, 11 (79%); normal, 1 (8%). CONCLUSION: Double injection of a vasoactive drug affected PSV, and therefore, appears to be a useful adjunctive procedure for the evaluation of patients in whom classification based on the results of the first injection is difficult.
Classification ; Diagnosis ; Erectile Dysfunction ; Female ; Humans ; Impotence, Vasculogenic ; Male ; Transducers ; Ultrasonography, Doppler*

The purposes of this study were to develop a model for university foodservices and to provide management strategies for reducing costs, and increasing productivity and customer satisfaction. The results of this study were as follows : 1) The demands in university food services varied depending on the time series. A fixed pattern was discovered for specific times of the month and semesters. The demand tended to constantly decrease from the beginning of a specific semester to the end, from March to June and from September to December. Moreover, the demand was higher during the first semester than the second semester, within school term than during vacation periods, and during the summer vacation than the winter. 2) Pearson's simple correlation was done between actual customer demand and the factors relating to forecasting the demand. There was ahigh level of correlation between the actual demand and the demand that had occurred in the previous weeks. 3) By applying the stepwise multiple linear regression analysis to two different university food services providing multiple menu items, a model was developed in terms of four different time series (first semester, second semester, summer vacation, and winter vacation). Customer preference for specific menu items was found to be the most important factor to be considered in forecasting the demand.
Efficiency ; Food Services* ; Forecasting* ; Humans ; Linear Models

PURPOSE: This study is to develop a hypothetical structural model of the quality of life of single aged women and to explain the compatibilities between the models and actual data. METHODS: Ten theoretical variables were used to evaluate of the quality of life of single aged women. 300 of single aged women were selected as the subjects. A hypothetical prediction model of quality of life was tested by the covariance structure analysis with PC-LISREL 8.12. RESULTS: Economy, religion activity, leisure activity, social support, self-esteem, depression and health prompting behavior were the significant variables which affected to the quality of life directly in the single aged women. But social support, self-esteem affected to them indirectly. Knowing perceived health status directly but it affected indirectly to the quality of life in single aged women. CONCLUSION: In this study, it was discovered that self-esteem was the most important factor to affect to the quality of life in single aged women and the next was the depression and health promoting behavior. As a result, it was discovered that age, economic status, self-esteem and depression were the significant factors to affect to the quality of life in single aged women.
Aged ; Depression ; Female ; Humans ; Leisure Activities ; Models, Structural ; Quality of Life

OBJECTIVE: The aim of the present study was to investigate the effects of nitric oxide synthase (NOS) inhibitor on MK-801-elicited behaviors in rats in an attempt to elucidate the participation of NO in the pathophysiology of schizophrenia and to identify the possibility of NOS inhibitor's antipsychotic property. METHODS: Male Sprague-Dawley rats, weighing 250-300g, were given MK-801 in order to know behavioral changes induced by MK-801. Next time, animals were pretreated with Nomega-nitro-L-arginine (L-NA) as a NOS inhibitor and haloperidol before administration of MK-801, respectively. Separate behavioral rating scales were introduced for quantifying MK-801-induced locomotor activity, stereotyped behaviors and ataxia in order that these behaviors might be assessed independently. Animals were observed for 30 seconds and scored once every 10 min. during a period of 1 hour. RESULTS: 1) Locomotor activity and stereotyped behavior were significantly increased by MK-801 in rats. 2) Locomotor activity and stereotyped behavior were significantly diminished by pretreatment with haloperidol. 3) Locomotor activity and stereotyped behavior were also significantly diminished by pretreatment with L-NA. CONCLUSIONS: These findings suggest that NO may, in part, mediate behavioral changes induced by MK-801, and that inhibitors of NOS may have antipsychotic action.
Animals ; Ataxia ; Dizocilpine Maleate ; Haloperidol ; Humans ; Male ; Motor Activity ; Nitric Oxide Synthase* ; Nitric Oxide* ; Rats* ; Rats, Sprague-Dawley ; Schizophrenia ; Stereotyped Behavior ; Weights and Measures

The origins of medullary carcinoma (MTC) and papillary carcinoma (PTC) of the thyroid are embryologically different. Tumors showing concurrent medullary and papillary features are rare and they represent less than 1% of all thyroid malignancies. Hereditary MTC is an autosomal dominantly inherited disease which is genetically determined as part of the MEN 2A, MEN 2B, or variants of MEN 2A such as familial MTC. Germline mutations of the RET gene are the underlying cause of the majority of cases of hereditary medullary carcinomas. The pathogenesis of concurrent PTC with familial MTC has rarely been known. Genetic analysis of the RET oncogene has so far provided conflicting results. Here we describe a family whose sibling was affected by both PTC & MTC, and the family carried a germ-line point mutation in the RET extracellular domain that converted cysteine 634 into tryptophan (C634W).
Carcinoma ; Carcinoma, Medullary ; Carcinoma, Papillary ; Cysteine ; Factor IX ; Germ-Line Mutation ; Humans ; Multiple Endocrine Neoplasia Type 2a ; Multiple Endocrine Neoplasia Type 2b ; Oncogenes ; Point Mutation ; Siblings ; Thyroid Gland ; Thyroid Neoplasms ; Tryptophan

BACKGROUND AND OBJECTIVES: Despite its well-established usefulness in the diagnosis of cervical tuberculous lymphadenitis, fine needle aspiration cytology (FNAC) has limitations in its clinical applications, especially whenever the presence of acid-fast bacilli is not proven. Furthermore, fine needle aspirate is occasionally inadequate for the diagnosis, and the sensitivity and specificity of this technique for cervical tuberculous lymphadenitis have not been firmly established. We performed Mycobacterium tuberculosis (MTb) polymerase chain reaction (PCR) for mycobacterial DNA sequencing using the remainder of fine needle aspirates after the cytologic examination, and evaluated its diagnostic efficacy in clinical situations. MATERIALS & METHODS: Conventional diagnostic procedures including FNAC and MTb PCR were performed simultaneously in twenty-nine patients who had been suspected with cervical tuberculous lymphadenitis on their first visit. After several months of follow-up, the results of FNAC and MTb PCR were compared with the clinical outcomes in some cases. RESULTS: In 17 cases diagnosed clinically as cervical tuberculous lymphadenitis, MTb DNA was found by PCR in 13 cases (76.4%). Also, negative results were achieved in all 12 cases which revealed non-granulomatous lymphadenopathy. CONCLUSION: From these results, we conclude that MTb PCR using the remainder of aspirate for cytologic examination would be a very useful tool for the diagnosis of cervical tuberculous lymphadenitis, and its clinical application with FNAC could decrease the necessity of open biopsy.
Biopsy ; Biopsy, Fine-Needle ; Diagnosis* ; DNA ; Follow-Up Studies ; Humans ; Lymph Nodes ; Lymphatic Diseases ; Mycobacterium tuberculosis* ; Mycobacterium* ; Needles* ; Polymerase Chain Reaction* ; Sensitivity and Specificity ; Sequence Analysis, DNA ; Tuberculosis ; Tuberculosis, Lymph Node*

PURPOSE: This study was conducted to identify the effects of life stress and depression in undergraduates on suicidal ideation. METHODS: The participants in this study were 306 nursing students from three different cities. Collected data were analyzed using t-test, ANOVA, Pearson correlation coefficients, and stepwise multiple regression. RESULTS: The mean score for life stress was 48.48, for depression, 28.59, and for suicidal ideation, 5.90. There were positive relationships between depression and life stress, suicidal ideation and life stress, and suicidal ideation and depression. The four factors of life stress, depression, school life, and gender were identified as factors influencing on suicidal ideation in undergraduates. CONCLUSION: The findings of this study indicate that the establishment of mental health care centers in universities, and development and implementation of nursing intervention programs for suicide prevention would be helpful.
Depression ; Humans ; Mental Health ; Stress, Psychological ; Students, Nursing ; Suicidal Ideation ; Suicide ; Child Health