Essential IT Terms and Security Practices
1. Fill in the Gaps with the Following Terms
- You have to enter a command line to make the system do anything.
- Capturing information stored in cards is card scanning.
- A warm light that you cannot see is infrared.
- To move at an angle is to tilt.
- Errors in the OS can sometimes cause a computer to crash.
- A power supply is a prerequisite for a computer to work.
- Voicemail is a feature that calls a number by speaking instead of by dialing.
- Is the system compliant with the latest standards?
- Is it worth improving
Synthetic Biology: Gene Expression and Feedback Circuits
We want to speed up the response of a gene that is expressed constitutively, while keeping the steady state protein concentration unchanged. How can we do it?
– Increasing both
To increase the response rate of a gene, considering that its expression rate (alpha) is constant, we must modify -deltaP. An increase in the degradation rate (delta) makes the protein less stable and, therefore, faster (higher speed). To maintain the “steady state” unchanged, knowing that P*=alpha/delta, we must also increase
Read MoreRhetorical Devices and Journalistic Text Analysis
Figures of Speech
Alliteration: The repetition of one or more sounds to produce a particular sound effect.
Paronomasia: The proximity of words with similar sounds but different meanings.
Ellipsis: Suppression of any item that is understood.
Asyndeton: Consists of the removal of links.
Polysyndeton: Repeated conjunctions to connect multiple items.
Enumeration: Succession of interrelated elements.
Grading: Enumeration which follows a certain order.
Parallelism: Repeating the same or similar syntactic structures.
Read MoreElectrical Installation in Operating Rooms, Electric Fences, Caravans
ITC 38: Electrical Installation in Operating Rooms
ITC 38: Special Purpose Facilities. Requirements for Electrical Installation in Operating Rooms and Rooms for Assistance.
The purpose of this investigation is to determine the specific requirements for electrical equipment in operating rooms and intervention halls and the conditions for installing the receivers in them. The object of this receptor complies with the requirements of applicable European Directives, as provided for in Article 6 of the
Read MoreAntennas, FM Receivers, and Cellular Communication Systems
Antenna Principles
Antennas sense electromagnetic waves and capture a part of them for processing. According to the standard definition by IEEE, an antenna or aerial may be defined as a “means for radiating or receiving radio waves.”
Fig. 1: Source, Transmission Line, and Antenna
Fig. 1 shows the position of an antenna in a transmission system. The source produces a radio frequency (RF) current. The antenna consists of a conductor split at the middle. The RF current is fed into the antenna by a
Read MoreUnderstanding MOSFET Channel Behavior: Voltage Effects
Effect of Source/Drain Voltage on Channel
For either enhancement- or depletion-mode devices, at drain-to-source voltages much less than gate-to-source voltages, changing the gate voltage will alter the channel resistance, and drain current will be proportional to drain voltage (referenced to source voltage). In this mode, the FET operates like a variable resistor, and the FET is said to be operating in a linear mode or ohmic mode.
If drain-to-source voltage is increased, this creates a significant
Read More