3,877 research outputs found
Patterns di motilità uterina in fase periovulatoria e medioluteale in pazienti affette da endometrite cronica
No full textAltered uterine contractility in women with chronic endometritis
No full textOBJECTIVE:
To evaluate the alterations in endometrial waves (EW) originating from the contraction of the subendometrial myometrial layer in the periovulatory and midluteal phases in women diagnosed with chronic endometritis (CE).
DESIGN:
Case-control study.
SETTING:
University hospital.
PATIENT(S):
Forty-five women referred for hysteroscopy and diagnosed with CE.
INTERVENTION(S):
Three-minute recording of transvaginal ultrasound scanning on sagittal uterine plane at periovulatory (cycle days 11-14) and midluteal phase (cycle days 19-22).
MAIN OUTCOME MEASURE(S):
Direction and frequency of EW measured by transvaginal ultrasound scan.
RESULT(S):
The direction and frequency of EW were analyzed offline as accelerated (four to eight times normal speed) image sequences using video editing software, and the results were compared with 45 cycling women without CE. The EW pattern was significantly different when comparing the women with CE and controls at both the periovulatory and midluteal phases. During the periovulatory phase, we observed retrograde contractions in 26.7% versus 88%, anterograde in 24% versus 0, opposing in 22.7% versus 12%, not propagated in 13.3% versus 0, and absent in 13.3% versus 0, respectively, in the CE cases versus the control group. During the midluteal phase, we observed not propagated (41.3% vs. 61.3%), opposing (24% vs. 25.4%), absent (16.1% vs. 13.3%), anterograde (13.3% vs. 0), and retrograde (5.3% vs. 0), respectively, in the CE cases versus the control group.
CONCLUSION(S):
Women with CE show altered EW patterns in both the periovulatory and midluteal phases. Altered uterine contractility may aid in explaining the symptoms related to CE such as pain, abnormal uterine bleeding, infertility, and possibly endometriosis
Chronic endometritis in patients with unexplained infertility: Prevalence and effects of antibiotic treatment on spontaneous conception.
No full textProblem: The correlations between chronic endometritis and unexplained infertility
are unexplored.
Method of Study: We performed a retrospective study on consecutive patients referred to our hysteroscopy service due to unexplained infertility. All women underwent endometrial sampling with histological and cultural examinations. If chronic
endometritis was diagnosed, patients received antibiotic therapy, and chronic endometritis resolution was subsequently ascertained by histological examination. We
aimed to estimate chronic endometritis prevalence and the effects of antibiotic therapy on spontaneous conception during the year following hysteroscopy.
Results: A total number of 95 women were included. Pooled prevalence of chronic
endometritis was 56.8%. Antibiotic therapy resulted in chronic endometritis resolution
in 82.3% of patients, while in 17.6% disease was persistent. Women with cured chronic
endometritis showed higher pregnancy rate and live birth rate in comparison with
both women with persistent disease and women without chronic endometritis diagnosis (pregnancy rate = 76.3% vs 20% vs 9.5%, P < .0001; live birth rate = 65.8% vs 6.6%
vs 4.8%, P < .0001).
Conclusion: Chronic endometritis is highly prevalent in patients with unexplained infertility. Diagnosis and treatment of chronic endometritis improve spontaneous pregnancy rate and live birth rate in such patients
A PC parallel port button box provides millisecond response time accuracy under Linux
No full textFor psychologists, it is sometimes necessary to measure people's reaction times to the nearest millisecond. This article describes how to use the PC parallel port to receive signals from a button box to achieve millisecond response time accuracy. The workings of the parallel port, the corresponding port addresses, and a simple Linux program for controlling the port are described. A test of the speed and reliability of button box signal detection is reported. If the reader is moderately familiar with Linux, this article should provide sufficient instruction for him or her to build and test his or her own parallel port button box. This article also describes how the parallel port could be used to control an external apparatus
Endometrial preparation with estradiol plus dienogest (Qlaira) for office hysteroscopic polypectomy: randomized pilot study
No full textStudy Objective: To estimate the effectiveness of Qlaira for endometrial preparation in women undergoing hysteroscopic polypectomy in the office setting. Design: Randomized clinical pilot study (Canadian Task Force classification II-2). Setting: Academic research environment. Patients: Seventy-four cycling women undergoing hysteroscopic polypectomy (polyp size <1.5 cm). Interventions: Women were randomized to be operated on during the proliferative phase (cycle day 5-7) of a spontaneous cycle (group A) or after 9 to 11 days of Qlaira intake (group B). Polypectomy was performed by using forceps and bipolar electrodes when required. Measurements and Main Results: The quality of visualization of the uterine cavity during the procedure (visual analog score [VAS] 0-5, bad to optimal), total surgeon satisfaction (VAS 0-5, very difficult to easy to perform), and total patient satisfaction (VAS 0-5, severe pain to no pain) were compared. Endometrial thickness before and at the end of the procedure was significantly less in women in group B. Mean duration of interventions was shorter in group B than in group A. In addition, vision quality, and surgeon and patient satisfaction rates were significantly higher in women in group B. Conclusions: At 10 days before surgery, administration of Qlaira is effective for preparation of the endometrium for hysteroscopic polypectomy in the office setting. With preoperative administration of Qlaira, the surgical procedure can be performed more easily and faster, and both surgeon and patient satisfaction rates are improve
Millisecond accuracy video display using OpenGL under Linux
No full textTo measure people’s reaction times to the nearest millisecond, it is necessary to know exactly when
a stimulus is displayed. This article describes how to display stimuli with millisecond accuracy on a
normal CRT monitor, using a PC running Linux. A simple C program is presented to illustrate how this
may be done within X Windows using the OpenGL rendering system. A test of this system is reported
that demonstrates that stimuli may be consistently displayed with millisecond accuracy. An algorithm
is presented that allows the exact time of stimulus presentation to be deduced, even if there are relatively
large errors in measuring the display time
Frontmatter (Titlepage, Table of Contents, Author List, PC List, Reviewer List)
No full textFront matter including table of contents, author list, PC list, and reviewer list
High efficiency implementation of PC and PC stable algorithms yields three-dimensional graphs of information flow for the Earth' atmosphere
No full textSeptember 3, 2014.Causal discovery algorithms have recently been applied to several climate applications. In particular, in prior work we have developed methods to recover pathways of interaction in the global climate system, using the classic PC algorithm. However, standard implementations of the PC algorithm cannot handle the large number of variables and temporal models required for this application. This technical report shows that a more efficient implementation of the PC algorithm can provide speed gains of a factor of 1,000 or more. This in turn enables us to calculate graphs of information flow with much higher resolution grids. Furthermore, we can now - for the first time ever - calculate information flow graphs that extend over three dimensions, i.e. rather than just including one layer of the planet's atmosphere we can now capture interactions across several height layers
State variable simulation package for IBM-PC
No full textThis thesis was scanned from the print manuscript for digital preservation and is copyright the author.
Researchers can access this thesis by asking their local university, institution or public library to
make a request on their behalf. Monash staff and postgraduate students can use the link in the References field
Degradation of bisphenol-a-polycarbonate (BPA-PC) optical lenses under simulated harsh environment conditions
No full textThis paper investigates degradation and failure mechanisms of BPA-PC lenses in simulated harsh environment conditions. Exposure of secondary optics in Light Emitting Diode LED-based systems or any other similar applications to environmental stresses can adversely effect the performance and lifetime of products. This paper simulates a harsh environment condition, using a salt bath oven. Salt spray exposure/ageing tests at 45° C were carried out up to four months. Fourier transform infrared-attenuated total reflection FTIR-ATR spectrometer and Lambda 950 Ultraviolet-Visible (UV-VIS) spectrophotometer were used to study the optical and chemical characteristics of aged plates. Results showed that salt bath exposure test resulted in the severe deterioration of optical characteristics BPA-PC samples. Degradation of optical properties of BPA-PC plates is attributable to the oxidation of samples.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Electronic Components, Technology and Material
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