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A Full Uterus: Hematometra from Cervical Scarring
A 29-year-old female presented with abdominal pain, nausea, and vomiting. She reported no menstrual period for one year. She did report monthly episodes of severe cramping. A loop electrosurgical excision procedure was performed approximately 10 months prior. On pelvic exam, a smooth cervix with scarring over the os was visualized with no evidence of cervical opening. A pelvic ultrasound showed an enlarged uterus with contents within the endometrial cavity likely representing hemorrhage of different ages and ongoing bleeding. Gynecology was consulted and performed an incisional opening of the cervix. The patient was diagnosed with hematometra from scarred cervical os
The distribution of selenium in some soils develped on silurian, carboniferous and cretaceous systems in England and Wales
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Telescope Bibliographies: an Essential Component of Archival Data Management and Operations
Assessing the impact of astronomical facilities rests upon an evaluation of
the scientific discoveries which their data have enabled. Telescope
bibliographies, which link data products with the literature, provide a way to
use bibliometrics as an impact measure for the underlying data. In this paper
we argue that the creation and maintenance of telescope bibliographies should
be considered an integral part of an observatory's operations. We review the
existing tools, services, and workflows which support these curation
activities, giving an estimate of the effort and expertise required to maintain
an archive-based telescope bibliography.Comment: 10 pages, 3 figures, to appear in SPIE Astronomical Telescopes and
Instrumentation, SPIE Conference Series 844
CDA and Continuing Dental Education on Company Time
As a Certified Dental Assistant (CDA), the obligation to obtain Continuing Dental Education (CDE) credits to maintain one’s certification is an annual occurrence. Through the Dental Assisting National Board (DANB), annual renewals for CDAs consist of a fee, CPR certification, and one’s CDE acquisition. Working for a nonprofit community health center, Terry Reilly Health Services, I find it crucial to be able to share with my colleagues resources on finding CDE opportunities. Thus this led to the creation of my CDA quickstart guidebook to ensure staff have the correct resources for pursuing or maintaining a CDA certification. It is a compilation of crucial courses that satisfy DANB requirements. I’m hoping that my work acts as a cushion for how stressful it can be to obtain CDE credits alone
Design, Fabrication, and Measurement of a Multiple-Input Multiple-Output (MIMO) Antenna for Mobile Communication
This thesis presents the design, fabrication and characterization of a multiband uniplanar MIMO antenna for hand-held mobile communication devices on LTE, WLAN, and WMAN networks. The antenna design methodology combined a variety of broadbanding techniques that resulted in a single-layer hybrid monopole antenna coupled to a meander line element and parasitic structures. The 115Ă—55Ă—1.54 mm antenna was fabricated using an FR4 composite material and occupies only a fractional volume within the size of an average cellular phone allowing ample space to integrate with existing hardware. Characterization of the MIMO antenna included input impedance, scattering parameters and radiation pattern cross sections that were all measured from 500-6500 MHz inside an anechoic chamber. The measurement results indicated four main operating regions of the multiband antenna centered at 875 MHz, 2300 MHz, 3500 MHz, and 5700 MHz with bandwidths of 240 MHz, 740 MHz, 190 MHz, and 370 MHz respectively. Scattering parameter measurements demonstrated excellent coverage of the desired communication spectrum, being able to operate on 30 of the 42 defined LTE bands, as well as common WLAN and WMAN bands. The radiation pattern cross sections in each of the operating regions showed non-directional behavior that is desirable for mobile communication devices. Additionally the envelope correlation coefficient calculated from the measured complex scattering parameters verified that the MIMO antenna achieved good system diversity. Overall, this work resulted in a multiband uniplanar MIMO antenna system suitable for hand-held mobile communication devices. Utilizing cost effective materials and simple geometries allowed fabrication using common methods. The novel antenna can support the high capacity required from evolving communication systems and represents a practical option for use within future generations of mobile devices
The Structures of Distant Galaxies - II: Diverse Galaxy Structures and Local Environments at z = 4-6; Implications for Early Galaxy Assembly
We present an analysis of the structures, sizes, star formation rates, and
local environmental properties of galaxies at z~4-6, utilising deep Hubble
Space Telescope imaging of the Hubble Ultra Deep Field. The galaxies we study
are selected with the Lyman-break drop-out technique, using galaxies which are
B-,V-, and i-drops, which effectively selects UV bright starbursting galaxies
between z=4 and z=6. Our primary observational finding is that starbursting
galaxies at z>4 have a diversity in structure, with roughly 30% appearing
distorted and asymmetric, while the majority are smooth and apparently
undisturbed systems. We utilize several methods to compute the inferred
assembly rates for these distorted early galaxies including utilising the CAS
system and pair counts. Overall, we find a similar fraction of galaxies which
are in pairs as the fraction which have a distorted structure. Using the CAS
methodology, and our best-estimate for merger time-scales, we find that the
total number of inferred effective mergers for M_{*} > 10^9-10 M_sol galaxies
at z<6 is N_m = 4.2^{+4.1}_{-1.4}. The more common symmetrical systems display
a remarkable scaling relation between the concentration of light and their
half-light radii, revealing the earliest known galaxy scaling relationship, and
demonstrating that some galaxies at z>4 are likely in a relaxed state. Systems
which are asymmetric do not display a correlation between size and half-light
radii, and are generally larger than the symmetric smooth systems. The
time-scale for the formation of these smooth systems is 0.5-1 Gyr, suggesting
that most of these galaxies are formed through coordinated very rapid gas
collapses and star formation over a size of 1-2 kpc, or from merger events at z
> 10. (Abridged)Comment: MNRAS, accepted, 28 pages, 20 figure
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