Aps 30 Navi Cd 10.1.epub
Macabeo Eastman
This is the abridged Whinfield translation of the Masnavi; an extensive poem by Rumi, the celebrated Persian Sufi saint and poet. It is one of the best known and most influential works of both Sufism and Dari literature. A series of six books of poetry, it is a spiritual writing that teaches Sufis how to reach their goal of being in true love with God. Book one of the Masnavi must be read in order to understand the other five volumes. It has no framed plot; its tone includes a variety of scenes including popular stories from the local bazaar to fables and tales from Rumi's time. It also includes quotations from the Quran and accounts from the time of Mohammed.
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Zipped Windows releases without installer are available in the alternative download locations below or from the release assets at GitHub - Little Navmap Releases - Version 3.0.6 (scroll down to Assets).
Little Navmap comes with a detailed user manual including several tutorials which is available online as well as in PDF and other formats like EPUB.Help buttons in all relevant areas of the program display corresponding chapters in the online manual on click.
A cycle 1801 database courtesy of Navigraph is included in the download and includes navaids,airways, airspaces, procedures and more. The navigation data can be updated using the NavigraphFMS Data Manager (subscription required).
A widely configurable map display using the OpenStreetMap as a background map which is only oneoption of many online and included offline maps. The map shows airports, navaids (VOR, NDB, ILS andmore), MORA (minimum off-route altitude) altitude grid, MSA (minimum sector altitude) diagrams,airways, en-route holdings, airspaces, oceanic tracks, high altitude winds, AI or multiplayeraircraft and ships as well as airport weather and winds aloft. A seamlessly integrated airportdiagram displays taxiways, displaced thresholds, overrun areas, aprons, parking spots and more.
It supports approach and departure procedures like SIDs, STARs and final approaches, offers awidely configurable automatic flight plan calculation and several export formats like GFP (Reality XP GTNand Flight1 GTN), FPL (Reality XP GNS), GPX, RTE, FLP and X-Plane FMS as well as drag and dropflight plan editing on the map. The program can read the PLN, FMS and FLP and more flight plan formats.
An elevation profile is shown for the flight plan allowing to find a safe cruise altitude alsodisplaying top of climb, top of descent and procedure altitude restrictions. Calculated and shownclimb as well as descent paths adhere to altitude restrictions.
Aircraft performance and fuel planning is included which automatically considers winds aloft forfuel, top of climb and top of descent calculation. Performance values can be collectedautomatically during flight and can be merged into the currently profile at any time.
Userpoint functionality allow to place, edit and export user defined features like points ofinterest, visual reporting points and more on the map. Import and export of CSV, X-Plane and Garminfiles.
Little Navmap comes with its own logbook allowing to automatically record, search and editlogbook entries. The logbook records the flight plan and the flown track which can be exported toGPX files.
The advent of 3D navigation imaging has opened new borders to the endoscopic surgical approaches of naso-sinusal inflammatory and neoplastic disease. This technology has gained in popularity among otolaryngologists for endoscopic sinus and skull base surgeries in both adults and children. However, the increased tissue radiation required for data acquisition associated with 3D navigation protocols CT scans is a source of concern because of its potential health hazards. We aimed to compare the effective doses of radiation between 3D navigation protocols and standard protocols for sinus computed tomography (CT) scans for both the adult and pediatric population.
In our center, utilization of 3D navigation sinus CT protocols significantly increases radiation exposure. Otolaryngologists should be aware of this significant increase and should attempt to decrease the radiation exposure of their patients by limiting unnecessary scan orders and by evaluating 3D acquisition protocols locally with radiation physicists.
The advent of 3D navigation imaging has opened new borders to the endoscopic surgical approaches of naso-sinusal inflammatory and neoplastic disease [1,2,3,4,5,6,7,8]. The outstanding precision obtained from the navigation systems increases the safety level of the endoscopic procedures [9,10,11]. The use of navigation systems has recently gained in popularity among the pediatric population, particularly in the fields of neurosurgery and otolaryngology. The use of this technology has been described for several pediatric surgeries, including intracerebral tumor resections, skull base tumor resections, choanal atresia cures as well as endoscopic sinus surgeries. 3D navigation can be particularly useful in a very young population, for whom all the anatomical structures are smaller and in whom there is an increased risk of complications [5, 10]. However, the increased tissue radiation required for data acquisition associated with navigation (3D) CT scans is a source of concern in the medical literature because of its potential health hazards [12]. Radiation-induced cancers are certainly the most feared complications. This risk is notably greater in children, due to their higher radiosensitivity than adults and to a longer lifespan after radiation exposure [13,14,15]. Several strategies for reducing radiation doses have been studied. They include a modification in acquisition parameters, the use of iterative reconstructive techniques, the use of eye lens shielding and the adoption of cone beam technologies [16,17,18]. As stated by Hoxworth and Lal [17], the best way to decrease radiation exposure is to avoid unnecessary scanner examinations. To our knowledge, no study has quantified the difference of effective dose of radiation caused by the use of a 3D navigation acquisition protocol compared to a standard protocol specifically for CT scans of the sinuses, either in children or adult patients. The aim of our study is therefore to compare the effective radiation doses associated with CT scans of the sinuses with a 3D navigation protocol to those with a standard protocol in our tertiary referral center. The objectives of this study were threefold: (1) To survey the prescription habits of 3D navigation sinus CT in our center; (2) To compare the effective doses of radiation between navigation and non-navigation CT scans of the sinuses in the pediatric and adult population and (3) To compare the effective doses of radiation between children and adults for a similar navigation protocol.
Ionizing radiation includes gamma rays, X-rays and the higher ultraviolet part of the electromagnetic spectrum as opposed to the lower ultraviolet part of the spectrum, visible light, infrared, microwaves and radio waves which are examples of non-ionizing radiation. As previously stated, exposure to ionizing radiation has been shown to increase the incidence of neoplasia. There is evidence suggesting that radiation exposure in childhood is associated with a higher risk of developing various types of cancers later in life including leukemia, thyroid, skin, breast and brain cancer [19,20,21].
Three dosimetry quantities have been defined to measure radiation: the absorbed dose, the equivalent dose and the effective dose. The absorbed dose corresponds to the amount of energy deposited in a substance (e.g., human tissue). The absorbed dose is measured in a unit called the gray (Gy). A dose of one gray is equivalent to a unit of energy (joule) deposited in a kilogram of a substance [22]. The equivalent dose considers the damaging properties of the various types of radiation and is based on the absorbed dose by a tissue or an organ. This weighted absorbed quantity is expressed in a unit called the sievert (Sv). Finally, the effective dose is a measure of the total detriment or risk, due to exposure to ionizing radiation. The effective dose calculation combines the absorbed dose to the whole body, the relative harm level of the radiation as well as the specific sensitivity of each organ to ionizing radiation. If the exposure to different organs or tissues is not uniform, the concept of effective dose is used. The most significant dose quantity for patients is certainly the effective dose, as it allows for comparison and evaluation of long-term risk [23, 24]. The basic idea is to express the risk from the exposure to a single organ or tissue in terms of the equivalent risk from an exposure to the whole body. The unit of effective dose is the sievert. The three dosimetry quantities are protection quantities defined by The International Commission on Radiological Protection (ICRP) [25].
The effective radiation of each scan was calculated in millisieverts (mSv), based on dose-length product (DLP) reported by the CT scanner and using a conversion factor obtained from Table 3 of the Report No. 96 of the American Association of Physicists in Medicine [29]. The use of DLP to estimate the effective dose appears to be a reasonably robust method for estimating the effective dose. The values of Table 3 [29] are for adults with standard physique and pediatric patients of various ages over various body regions. Conversion factor for adult head and neck and pediatric patients assume the use of the head CT dose phantom (16 cm). The conversion factors used for calculations were 0.013 (birth), 0.0085 (1-year-old), 0.0057 (5-year-old), 0.0042 (10-year-old) and 0.0031 (adult) (Table 3, [29]), [30].
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