Wednesday, March 17, 2021

Are Instagram Historical Pages Legitimate?

Are Instagram Historical Pages Legitimate?

The results of a research conducted on Instagram pages providing historical content show that most of these pages are devoid of accurate material based on scientific evidence and are mostly designed to attract an audience independent of media literacy.

Are Instagram Historical Pages Legitimate

According to ISNA, in recent years, new technologies in smartphones and the types of communication programs that are installed on these phones, provide the field of easy communication and exchange of information, more than ever, for people of all ages and educational groups with intellectual orientations And has provided various policies. The presence of people in social networks is one of the special communication features of the present age, so that it seems to contemporary man not to use these communication tools is impossible or very difficult. One of the most popular social networks is Instagram, which has been introduced to users as a mobile application and as a "video social media", and due to these features, it has found a special place in the daily lives of millions of users.

Content on Instagram, according to researchers, has a very wide range and variety, including historical topics. Producers of historical content on Instagram are divided into several main categories based on researchers' research:

1) official public and private research centers; 

2) Researchers and scholars who share the results of their historical research and scientific views; 

3) Historical archives and databases that share selected documents; 

4) Publishers of historical magazines and books that introduce the latest publications, and 

5) natural persons, who publish historical content only as a content to attract the attention of followers.

In this regard, a researcher from the University of Radio and Television has conducted a study in which Persian historical pages on the social network Instagram have been analyzed with the approach of media literacy.

In this research, the researcher has tried to achieve a better understanding of this phenomenon and answer the research questions with a phenomenological approach and using the method of interviewing the users of these pages due to the lack of studies. In this study, users were asked about the content of seven personal history pages on Instagram, which had many followers, about content credibility, valuation for subscription, encouragement of historical study, and impact on users' historical knowledge.

The results of these studies show that such pages in the method of content production follow the general patterns of virtual networks and have not considered the importance of content validity in publishing historical content. Their content is far from neutral and biased and does not encourage the audience to learn more.

Vida Hamraz, an assistant professor and researcher in the radio department of the production faculty of the Radio and Television University, says: "There is no specialized and important content like history."

He adds: "Historical content, in the eyes of the operators of these pages, like any other content, is provided only to increase followers and, most likely, to generate advertising revenue. "Although the capacity to send text and images is limited, the choice of subject and image and style of writing the text is mostly historical information and lacks scientific source and credibility."

According to these findings, the type of content and the way it is presented do not contribute to the development of knowledge and historical literacy of society; In fact, in this way, an important communication opportunity in the field of increasing historical knowledge and literacy in the society is lost. But the important thing is that a large number of users have access to such content, which they publish regardless of the accuracy of this content. Obviously, there is no practical way to restrict these pages, given the prevailing practice on social media, and these pages continue to operate.

But Hamraz believes, "What is important is the lack of effective presence of researchers and historians on social media to disseminate historical knowledge and interact with users in new ways. "It can be said that many historians still rely on traditional methods of verbal face-to-face communication or the dissemination of written information through history books and articles, while the pace of change in the field of communication and media has opened up new opportunities."

These scientific research findings, published in the "Media" quarterly of the Deputy Minister of Press and Information of the Ministry of Culture and Islamic Guidance, not only confirm the importance of the purposeful presence of history experts in virtual networks to produce credible and effective content. , But also emphasize the need to improve media literacy and increase the power of message analysis by users.

End of message

Source: ISNA

Everything About the Air Conditioner

Everything About the Air Conditioner

 Men and women are usually looking for a suitable and economical air conditioner or split in summer and winter to cool and warm their work and home space; In this article, we will introduce you to one of the most reputable and best brands of air conditioner manufacturers, namely Gary Company and Gary Air Conditioner.

Everything about the air conditioner

Everything About the Air Conditioner


Gas cooler

Gary and air conditioner company with the production and sale of 30 million home air conditioners and 2 million commercial air conditioners and also using the latest technologies and expertise in the world to one of the best and most popular companies producing and known air conditioners in The world has become.

Types of gas cooler models

In general, it can be said that air conditioners are made in various models and designs that can be used in models such as

The company and dealer of air conditioners also produces various models of window, wall split, standing, portable, simple and advanced multi-panel and duct; These devices have been tested and studied in the most unique and famous scientific and research centers, and this is the reason why it provides the most unique performance and efficiency to its regular customers in the worst weather conditions.

Gas cooler price

Regarding the price of GREE air conditioner, it can be said that the price of this product is determined based on the features and capacity of the air conditioner, and usually, the more capacity and features of an air conditioner, the higher its amount and price will naturally be; In the past year, due to the increase in the price of the dollar, the price of Gary's air conditioners has also increased, and also due to sanctions, the import of foreign and Chinese air conditioners to the country has decreased.

Air conditioner and ductwork

Gas cooler specifications

In this section, we will introduce the features and specifications of the gas cooler; The Chinese company uses kit inverter, piston and rotary compressors in the production of its split and gas coolers.

Note that air conditioners in which the inverter kit compressor is installed have less power consumption, and this model is also called low-consumption air conditioners; If you put this device in automatic saving mode, it saves up to 15% in energy, and also if you put this air conditioner in optional saving mode, it saves up to 20% in amount and amount of energy.

The type of refrigerant gas used in inverter gas coolers without inverters is R410a and R22; This gas model is one of the best gases among various refrigerants and does not cause any environmental pollution for the Earth's air.

Almost all Gary gas coolers have the ability to cool and have the ability and feature to distribute hot air, in other words, it can be said that these products are used by customers in four seasons.

The gas cooler is equipped with a very powerful air purification filter, which causes less dust to be spread and humidity to be reduced; This product has a remote control and the lowest temperature it produces is 7 degrees Celsius and also the maximum temperature it produces is 54 degrees Celsius.

Ductage is a new generation of air conditioners that has many fans and fans; Duct splits, in addition to keeping the space cool, provide services such as maintaining humidity, complete air purification and elimination of bacteria in the home environment to its customers and buyers.

This device consists of two internal and external parts so that the indoor unit is installed inside the false ceiling of the house and the outdoor unit of this device is installed outdoors. One of the great advantages of the ducting device is the return air use system, which increases the efficiency of the device, reduces fuel consumption, and creates fresh air with sufficient and appropriate oxygen.

One of the advantages of using ductwork is that this device consumes 50% less electricity compared to the air conditioner, and this system also saves up to 30% in gas consumption in winter. Other features of this device can be mentioned that this system gradually increases the ambient temperature during the winter during sleep so that people at home do not get colds.

One of the special advantages of this device is that vertical ducting is eliminated and the ducting device can be installed in small and large spaces; Also, once the ductwork is installed in your home, you no longer need a radiator system, which reduces your costs.

The operation of the ductwork device in cooling mode is exactly the same as the air conditioner; The operation of these two devices in the cold state is such that the refrigerant gas passes through the condenser, compressor and expansion valve and the refrigerant gas changes phase and is also cooled by the coil and this cold gas is ventilated to Spread out to cool home or work space.

Everything about the air conditioner

Finally, according to the useful and comprehensive information that we said about the introduction of air conditioners and ducts; You can purchase and purchase this quality and economical product by visiting the air conditioner dealership throughout Iran, and

Good News for the Corona Vaccine for Children

Good News for the Corona Vaccine for Children

 The American company Modern is testing the mRNA-1273 vaccine on teenagers between the ages of 12 and 18 years.

Good news for the corona vaccine for children

Good News for the Corona Vaccine for Children


American company Modern has begun a mid-final clinical trial of its Corona vaccine on children between 6 months to 12 years old.

In this study, the safety and efficacy of injecting 2 doses of its produced corona vaccine, mRNA-1273, over a period of 28 days, ultimately on 6,750 children in the US and Canada review.

The vaccine was previously licensed for emergency use for people 18 and older in the United States. Modern is currently testing the mRNA-1273 vaccine in 12 to 18-year-olds in a separate study that began in December.

A recent study of children was done in collaboration with the US National Institute of Allergy and Infectious Diseases (NIAID) and the Advanced Biomedical Research and Development Organization (BRADA).

Pfizer-BionTech and Moderna have used the new "Messenger Arena" or "mRNA" technology to produce the Covid-19 vaccine. These two vaccines are the first vaccines produced and marketed using this method.

In the traditional method of producing a vaccine against viral diseases, the virus or its protein components are commonly used to stimulate the human immune system. Then, when the body is next exposed to that particular virus, it produces a specific antibody.

Opinion

But mRNA vaccines do not require viruses (although small amounts of the virus are used to sequence the genome and test the vaccine), but a part of the virus's genetic code enters body cells after injection And produces the horn protein of the virus. The immune system with the production of antibodies and immune T cells to fight the disease.

So when the body's immune system is activated, the horn proteins of the virus and the messengers of arenas are destroyed, but antibodies remain in the body for future protection.

The Modern American Biotechnology Company conducted experiments in early April 2016 to produce the Corona vaccine; Injecting the vaccine into mice, called mRNA-1273, prevented the corona virus from entering their lungs.

In May, experiments were conducted on humans, and results obtained on eight healthy volunteers showed that the vaccine is safe and can create a strong immune system in these people.

The US company conducted the second phase of mRNA-1273 vaccine trials in mid-June on 600 volunteers with positive results. The third phase of this vaccine trial was carried out in early July at 30,000 people.

The 1273 mRNA vaccine was developed in collaboration with the National Institutes of Allergy and Infectious Diseases, and its clinical trials have been carried out with the help of the US National Institutes of Health.

According to IRNA, the corona virus called "Kovid 19" was reported in mid-December 2019 in Wuhan city of central China.

The disease was previously known as pneumonia; But on 30 December 2019, the National Health Commission of China officially announced the outbreak of the virus in China.

At a conference on Wednesday, March 12, 1998, the Director General of the World Health Organization, Tedros Adhanam, insisted that although the term epidemic should not be used carelessly because of its sensitivity; But the organization's assessments identify the corona virus as a "global pandemic".

Thursday, March 11, 2021

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