How COVID-19 affected the control of hypertension and comorbitities in one cardiological outpatient practice in Bulgaria?

COVID-19 pandemic affected directly and indirectly the healthcare system in Bulgaria in a very negative manner. The hospitals were flooded with COVID cases and patients were afraid to attend even the outpatient clinics. That resulted in increased mortality and poor control of cardiovascular diseases. We studied the results from the mandatory annual examinations of hypertensive patients in one cardiological outpatient practice in Sofia, Bulgaria in 2021 and 2022. The results showed low level of attendance by the patients in 2021 and poor control of hypertension and comorbidities, that continued even in the post-covid year – 2022

Low-Power Reduced Transistor Image Sensor

An image sensor comprising an array of 128 by 50 super pixels, column parallel current conveyors and global difference double sampling (DDS) unit is presented. The super pixel consists of: a reset transistor, a readout transistor, four transfer transistors and four photodiodes. The photo pixel address switch is placed outside the pixel, effectively implementing 1.5 transistors per pixel using a sharing scheme of the readout and reset transistor. The column FPN of 0.43% from saturated level and SNR of 43.9 dB is measured. The total power consumption is 5 mW at 30 frame/s

Focal-Plane Change Triggered Video Compression for Low-Power Vision Sensor Systems

Video sensors with embedded compression offer significant energy savings in transmission but incur energy losses in the complexity of the encoder. Energy efficient video compression architectures for CMOS image sensors with focal-plane change detection are presented and analyzed. The compression architectures use pixel-level computational circuits to minimize energy usage by selectively processing only pixels which generate significant temporal intensity changes. Using the temporal intensity change detection to gate the operation of a differential DCT based encoder achieves nearly identical image quality to traditional systems (4dB decrease in PSNR) while reducing the amount of data that is processed by 67% and reducing overall power consumption reduction of 51%. These typical energy savings, resulting from the sparsity of motion activity in the visual scene, demonstrate the utility of focal-plane change triggered compression to surveillance vision systems

Zur Kenntnis einiger in der T\ufcrkei, Jugoslawien und Griechenland vorkommender Arten der Familie Chrysomelidae (Coleoptera) aus der Zoologischen Staatssammlung M\ufcnchen

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