The document discusses the use of the present perfect tense in three sentences or less:
The present perfect tense is used to describe experiences that started in the past and continue in the present, experiences that have happened one or more times, and actions that were expected to happen but have not occurred yet. It is not used to describe specific past events.
The document discusses the use of the present perfect tense in three sentences or less:
The present perfect tense is used to describe experiences that started in the past and continue in the present, experiences that have happened one or more times, and actions that were expected to happen but have not occurred yet. It is not used to describe specific past events.
This document summarizes different uses of the participle I in English grammar. It lists attribute, adverbial modifier, time, cause, manner, and possessive noun as different functions participle I can serve in a sentence. For each function, it provides examples to illustrate how participle I is used with different verbs, prepositions, and contexts in English. The document concludes by wishing the reader good luck in learning about and applying participle I.
Buildings of earth and straw structural design for rammed earth and straw-b...Khaled Nasr
The document describes a new type of battery that is safer and longer lasting than current lithium-ion batteries. It works by using sodium ions rather than lithium ions and two solid electrodes rather than a liquid electrolyte. This sodium-ion solid-state battery could last longer, charge more quickly, and be less flammable than conventional lithium-ion batteries. It has the potential to improve energy storage for various technologies by providing a safer, longer-lasting alternative to current battery designs.
Social Media Marketing Channels - Initial EmbarkmentDuong Nguyen Thuy
The document discusses the Vietnamese social media landscape in 2013. It finds that Facebook, Zing Me, and Google+ were the most popular social networks, with Facebook dominating. Fanpages on Facebook had become effective for brands to engage customers, with 61% of users following and interacting with brands. Word-of-mouth marketing was also important and was empowered by social media. Mobile access to social networks was rising across age groups. Popular chat apps like Zalo, Viber, Kakao Talk and Line were providing new opportunities for social media marketing in Vietnam. Zalo in particular saw success with 2 million users by mid-2013 and useful tools for marketers.
All organisms are composed of one or more cells, which are the basic unit of life. A typical animal cell contains organelles such as a nucleus, cytoplasm, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and microtubules. The nucleus houses the cell's DNA and directs cell activities, while organelles such as mitochondria generate energy and the endoplasmic reticulum and Golgi apparatus modify and transport proteins within the cell. Cells arise only through division of preexisting cells, demonstrating the cell theory that cells are the fundamental unit of life.
The document summarizes the anatomy and function of the spleen. It describes the spleen's location in the upper left quadrant of the abdominal cavity. It has three borders, two surfaces, and two poles. The spleen filters blood and removes old red blood cells, microbes, and debris. It is supplied by the splenic artery and drained by the splenic vein. Microscopically, it contains white pulp with lymphocytes and red pulp that filters the blood and removes particulate matter.
The skin has three main layers - the epidermis, dermis, and subcutaneous layer. The epidermis is made of epithelial tissue in 5 layers (stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum) and contains four main cell types. The dermis is made of connective tissue and contains hair follicles, sebaceous glands, sweat glands, and nerves. The skin provides protection from external factors, regulates body temperature, and serves important sensory functions.
This document summarizes different uses of the participle I in English grammar. It lists attribute, adverbial modifier, time, cause, manner, and possessive noun as different functions participle I can serve in a sentence. For each function, it provides examples to illustrate how participle I is used with different verbs, prepositions, and contexts in English. The document concludes by wishing the reader good luck in learning about and applying participle I.
Buildings of earth and straw structural design for rammed earth and straw-b...Khaled Nasr
The document describes a new type of battery that is safer and longer lasting than current lithium-ion batteries. It works by using sodium ions rather than lithium ions and two solid electrodes rather than a liquid electrolyte. This sodium-ion solid-state battery could last longer, charge more quickly, and be less flammable than conventional lithium-ion batteries. It has the potential to improve energy storage for various technologies by providing a safer, longer-lasting alternative to current battery designs.
Social Media Marketing Channels - Initial EmbarkmentDuong Nguyen Thuy
The document discusses the Vietnamese social media landscape in 2013. It finds that Facebook, Zing Me, and Google+ were the most popular social networks, with Facebook dominating. Fanpages on Facebook had become effective for brands to engage customers, with 61% of users following and interacting with brands. Word-of-mouth marketing was also important and was empowered by social media. Mobile access to social networks was rising across age groups. Popular chat apps like Zalo, Viber, Kakao Talk and Line were providing new opportunities for social media marketing in Vietnam. Zalo in particular saw success with 2 million users by mid-2013 and useful tools for marketers.
All organisms are composed of one or more cells, which are the basic unit of life. A typical animal cell contains organelles such as a nucleus, cytoplasm, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and microtubules. The nucleus houses the cell's DNA and directs cell activities, while organelles such as mitochondria generate energy and the endoplasmic reticulum and Golgi apparatus modify and transport proteins within the cell. Cells arise only through division of preexisting cells, demonstrating the cell theory that cells are the fundamental unit of life.
The document summarizes the anatomy and function of the spleen. It describes the spleen's location in the upper left quadrant of the abdominal cavity. It has three borders, two surfaces, and two poles. The spleen filters blood and removes old red blood cells, microbes, and debris. It is supplied by the splenic artery and drained by the splenic vein. Microscopically, it contains white pulp with lymphocytes and red pulp that filters the blood and removes particulate matter.
The skin has three main layers - the epidermis, dermis, and subcutaneous layer. The epidermis is made of epithelial tissue in 5 layers (stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum) and contains four main cell types. The dermis is made of connective tissue and contains hair follicles, sebaceous glands, sweat glands, and nerves. The skin provides protection from external factors, regulates body temperature, and serves important sensory functions.