Light Distribution in 3D-Printed Thermoplastics

Daylight distribution is an essential performance parameter for building facades that aim to maximize user comfort while maintaining energy efficiency. This study investigates the feasibility of using 3D-printed thermoplastic to improve daylight distribution and transmission. To identify how geometry influences light distribution and transmission, 12 samples with various patterns were robotically fabricated. In a physical simulation of spring, summer, and winter, a robotic arm was used to direct light onto the samples in both the vertical and horizontal print pattern directions. In addition, three samples of conventional facade materials, including a polycarbonate panel, a polycarbonate sheet, and a single sheet of glass, were compared with the 3D-printed samples. All samples were examined and compared using high dynamic range imaging to qualitatively characterize luminance. The data analysis demonstrated that 3D-printed geometry can successfully generate customizable diffusive light distribution based on the needs of the user. Furthermore, the results showed that the vertical pattern direction had higher light transmission values than the horizontal pattern direction.

Anxiety, depression and anger suppression in infertile couples: a controlled study

BACKGROUND

Although several authors have suggested an important pathogenic role for psychosocial factors in 'functional' infertility, the extent to which depression, anxiety and expressed emotional patterns correlate to infertility is not yet clear.

METHODS

This study included 156 infertile couples (recruited at intake) and 80 fertile couples, whose personal characteristics were recorded. They were examined using scales for the evaluation of the degree of psychopathology [Hamilton Anxiety Rating Scale (HAM-A), Hamilton Depression Rating Scale (HAM-D)], and anger expression [State-Trait Anger Expression Inventory (STAXI)]. The 156 infertile couples were then subdivided into groups based on the cause of infertility ('organic', 'functional' or 'undetermined'). The psychometric evaluation was double-blind with respect to the causes of infertility.

RESULTS

Differences emerged in the degree of psychopathology between 'organic' and 'functional' infertile subjects and fertile controls. In women, logistic regression identified three variables able to predict the diagnosis subtype; these variables are HAM-A, HAM-D, and tendency toward anger suppression. In men, anger did not emerge as a predictor for diagnosis, whereas HAM-A and HAM-D did.

CONCLUSIONS

The 'functional' infertile subjects of this sample showed particular psychopathological and psychological features, independent from the stress reaction following the identification of the cause of infertility.

The use of intravenous immunoglobulin in sine causa or alloimmune recurrent spontaneous abortion (RSA)

BACKGROUND

Recurrent spontaneous abortion (RSA) has an incidence of 0.5%-1%. It is thought that immune reaction disorders in the mother may evolve in unexplained RSA, which has a higher incidence in women over 40 years old.

METHODS

Twenty-three patients with recurrent spontaneous abortion of unknown origin and two autoimmune cases were treated with intravenous specific immunoglobulins at the 5th-6th week of pregnancy and fifteen days later.

RESULTS

After treatment, nineteen patients brought their pregnancy to term, five aborted, one is pregnant at present.

CONCLUSIONS

The use of immunoglobulins seems to be efficacious in recurrent spontaneous abortion of unknown origin. Our results support the theory that this treatment is able to passively transfer the sparking off factor that allows the pregnancy to evolve.

Recurrent spontaneous abortion. Etiologic factors

BACKGROUND

Spontaneous abortion is the most common complication of pregnancy. It may be unique, remaining random and having no consequences on the reproductive process, or it can repeat itself, starting a clinical picture known as recurrent spontaneous abortion or habitual abortion. The term of RSA syndrome is used to define the repetition of three or more consecutive abortions before the 24th week.

METHODS

A population of 195 couples with recurrent spontaneous abortion were screened for genetic, metabolic, infective, morphological, endocrine and autoimmune factors. Eighty-five completed the investigation, 44 are being tested and 66 did not complete the diagnostic course. Causes of recurrent abortion were evaluated in relation to the period of abortion and number of embryo losses.

RESULTS

Forty-six percent of patients who completed the investigation turned out to be sine causa, which is in accordance with the findings in literature.

CONCLUSIONS

Couple with RSA require accurate counselling and it is fundamental to eliminate any pathologies that can be discovered so as to improve the likelihood of the pregnancy's reaching term.

Psychological investigation in female patients suffering from urinary incontinence

The available data about the hypothesis that psychological conditions cause urinary incontinence are contradictory. This study was based on a group of patients undergoing urodynamic investigation to define the type of incontinence. Patients were submitted to a battery of psychological tests, including STAXI, CES-D and IBQ (in their Italian version). Patients suffering from urge incontinence showed higher degrees of inner anger and anger trait than those suffering from stress or mixed incontinence. Neither group showed signs of depression. The conviction of illness was greatest in patients suffering from stress or mixed incontinence, whereas irritability and general hypochondria prevailed in patients suffering from urge incontinence. Such patients tend to develop psychosomatic reactions that may contribute to the severity of their symptoms.

Psychological distress in women with nonneoplastic epithelial disorders of the vulva

The aim of this study was to evaluate psychological distress in 44 women with vulvar squamous cell hyperplasia and 21 with vulvar lichen sclerosus in order to examine the presence of psychological factors in these dermatologic disorders. Two psychometric tests were used to evaluate depressive status and various aspects of anger. No significant depressive status was diagnosed with the former test either in patients with vulvar squamous cell hyperplasia or in patients with vulvar lichen sclerosus. Patients with squamous cell hyperplasia had two components of anger (state and internal anger) that were significantly higher and three components (trait anger, exteriorization and control of anger) significantly lower than did the controls. In patients with lichen sclerosus all the components of anger were within the normal range. These findings suggest that psychological factors may be associated with vulvar conditions, such as squamous cell hyperplasia, and may have some therapeutic implications in cases resistant to standard treatment.

[Psychosomatic assessment in patients with gravidic hyperemesis]

Thirty female subjects examined in the first three months of pregnancy took part in the study. Ten of these suffered from severe gravidic hyperemesis, while twenty had a physiological pregnancy. All subjects with hyperemesis and six controls were subjected to measurement of cortisolaemia at the following times: 8, 12, 16, 20, 24 and 4.00 so as to obtain the circadian curve of the hormone, measurement of T3 and T4 and of TSH. The Cattell test in form C was carried out in all patients. The results obtained evidenced a global increase in the production of cortisol in the group of hyperemetic women, with maintenance of the circadian rhythm. The Cattell test identified characteristic personality traits in the subjects suffering from hyperemesis compared to the controls.