A portable L-band voice transceiver for satellite communication

A portable L-band voice transceiver was developed as a feasibility model and can provide a half-duplex voice link to another terminal via the L-band transponder on the Applications Technology Satellite, ATS-6. The narrow band FM transceiver utilizes commercial subsystems including a UHF transceiver, provides an RF output power of 20 watts, weights less than 25 lbs., is housed in a plastic briefcase, can be powered by an automobile electrical system, and has been successfully operated with ATS-6 on numerous occasions. Design considerations and operation of the transceiver are described, along with alignment and testing procedures, packaging and cost considerations, subsystem performance requirements and overall transceiver performance characteristics

Manufacturing: Working Conditions and Job Quality

This report gives an overview of working conditions, job quality, workers’ health and job sustainability in the manufacturing sector. It is based mostly on the fifth European Working Conditions Survey (EWCS), which gathers data on working conditions and the quality of work across 34 European countries. Additional information on the structural characteristics of the sector is derived from Eurostat data. The fifth EWCS contains responses from almost 44,000 workers in manufacturing. The report compares aspects of work in the manufacturing sector with the EU28 as a whole and examines differences across the 11 subsectors within the sector: • food (NACE 10): 11,838 cases; • textiles (NACE 13): 14,468 cases; • leather (NACE 15): 106 cases; • wood (NACE 16): 251 cases; • paper (NACE 17): 107 cases; • printing (NACE 18): 328 cases; • chemicals (NACE 20, 21): 22,599 cases; • steel (NACE 24): 200 cases; • metal (NACE 25 to 30): 1,382 cases; • furniture (NACE 31): 351 cases; • other manufacturing sectors (NACE 12, 19, 23, 32): 33,357 cases

Traveling-wave tube circuit simplifies microwave relay

Circuit with a sawtooth-modulated traveling-wave tube, which acts as a frequency converter and as an amplifier, simplifies microwave transmission. Lower power losses and reduced size and weight are also realized in this circuit

Mark-Up Pricing in Bulgarian Manufacturing

The pricing policy of Bulgarian manufacturing firms is analysed in the paper in the context of the theory of the price-setting behaviour of firms endowed with market power, and more specifically, using the notion of mark-up pricing. Using some recent derivations in the literature, we estimate mark-up ratios for Bulgarian manufacturing sectors at the NACE 2-digit and NACE 3-digit levels. The estimated mark-ups are then tested against a set of variables measuring the degree of competitive pressure on a sectoral level.http://deepblue.lib.umich.edu/bitstream/2027.42/39773/3/wp389.pd

Anosmia and Ageusia as the Only Indicators of Coronavirus Disease 2019 (COVID-19)

The patient is a 60-year-old woman with a history of vertigo and seasonal allergies who presented to the hospital with the chief complaint of headache. Radiological findings were negative for intracranial abnormalities. The headache was due to trigeminal neuralgia. She had concurrent complaints of anosmia and ageusia without fever, respiratory symptoms, or obvious risk factors. However, it was determined to test the patient for coronavirus disease 2019 (COVID-19) infection despite extremely low clinical suspicion. Unfortunately, she was found to be COVID-19 positive after she was discharged from the hospital while she remained asymptomatic. There is currently a lack of published case reports describing COVID-19 patients with the sole symptoms of anosmia and ageusia in the United States of America

Mark-Up Pricing in Bulgarian Manufacturing

The pricing policy of Bulgarian manufacturing firms is analysed in the paper in the context of the theory of the price-setting behaviour of firms endowed with market power, and more specifically, using the notion of mark-up pricing. Using some recent derivations in the literature, we estimate mark-up ratios for Bulgarian manufacturing sectors at the NACE 2-digit and NACE 3-digit levels. The estimated mark-ups are then tested against a set of variables measuring the degree of competitive pressure on a sectoral level.mark-up pricing, competetive pressure, enterprise restructuring and adjustment, Bulgaria

Nace un problema

Con base en el enfoque de resolución de problemas, se describe una experiencia vivida por un grupo de maestros en la que se parte de un problema que es resuelto sin mayor dificultad, pero que, al realizar la mirada retrospectiva, da lugar a un nuevo problema que invita a los participantes a un viaje

Iron Deficiency Anemia: An Unexpected Cause of an Acute Occipital Lobe Stroke in an Otherwise Healthy Young Woman

A 29-year-old caucasian woman who presented to the hospital with an acute onset of right eye visual disturbance and headache was found to have an acute left occipital lobe infarction. Past medical history was significant for iron deficiency anemia (IDA) secondary to menorrhagia. Her initial hemoglobin level was 7.8 G/DL, and her symptoms improved after iron and blood transfusions. Hypercoagulable studies were completed in the outpatient setting, and the results were unremarkable. Her acute stroke was most likely related to IDA as she had low cardiovascular risk factors along with a negative complete stroke workup