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This document discusses organic reactions that can occur in supercritical and near critical water. It provides details on the phase diagram of water and properties of super/near critical water that make it a good reaction medium. Several types of organic reactions are described such as alkylation, cyclization, disproportionation, and decomposition reactions that proceed through new reaction pathways under supercritical water conditions. Reaction examples are given to illustrate how reaction yields can be improved using supercritical water.
This document introduces iSMS, a solution that connects schools, parents, and pupils in Vietnam via SMS, email, and websites. In 3 sentences: iSMS provides real-time student results and school information to parents via SMS; over 150 schools across 6 provinces currently use the service, generating $40,000 USD in revenue over 4 months; the solution aims to fully digitize school management systems and has competitive advantages over other solutions through features like ICR technology and a SaaS platform.
The importance of brand building inc. rebranding process of company LANEX a.s. / V箪znam znaky v obchodn鱈ch vztaz鱈ch a proces rebrandingu spolenosti LANEX a.s.
Importance of corporate design for successful brand planning / V箪znam korpor叩...adtomgreg
油
Presentation for the company LANEX a.s. (industrial and climbing ropes and cords, technical textile products) about the importance of brand identity. Presentation contains routemap for LANEX卒s own rebranding process. Presentation is in Czech.
The Mitsunobu reaction allows the conversion of alcohols to various functional groups using trialkyl/triaryl phosphine and dialkyl azodicarboxylate reagents. It proceeds via an oxidation-reduction mechanism. Common applications include esterification, etherification, and N-alkylation reactions. Recent advances have focused on replacing conventional reagents to improve selectivity and yields. The Mitsunobu reaction has been widely used in the synthesis of natural products and pharmaceuticals.
The nucleus accumbens is located in the basal ganglia and is involved in motivation, reward, pleasure, and addiction. Three key studies are summarized: James Olds and Peter Milner in the 1950s found that rats would compulsively press a lever to stimulate their nucleus accumbens with electricity, even to the point of starvation. A 2007 study used deep brain stimulation of the nucleus accumbens to treat severely depressed patients, finding short-term improvements in mood and motivation but no lasting effects. Axmacher's 2010 study used EEG to find that the nucleus accumbens and hippocampus activate in response to surprising events, indicating its role in memory formation and responding to both pleasurable and aversive experiences.
The document summarizes a deep learning event that was held with 210 participants from science, business and IT. Dr. Le Viet Quoc presented on deep learning research and took questions from attendees, answering 12 questions. After the event, attendees continued discussions and the event received press coverage from several technology publications.
Bandwidth Compression Project aims to develop proprietary compression technologies that can save 15% more bandwidth than existing solutions like WebP. The team has developed compression algorithms for various file types that have shown promising results in demonstrations. Current business models under consideration include licensing the technology to telecom companies, VPN/proxy vendors, and content companies. The leadership team brings decades of experience in computer science and startup success. Initial strategies will focus on direct sales of access services and approaching corporate customers for trials. The project aims to create a disruptive compression technology with widespread adoption like JPEG has achieved.
The Mannich reaction involves the condensation of an enolizable carbonyl compound, an aldehyde such as formaldehyde, and a primary or secondary amine. This results in an aminoalkylation and formation of a 硫-aminocarbonyl compound known as a Mannich base. Modifications using preformed Mannich bases and reactive substrates extend the scope and selectivity of the reaction. The Mannich reaction has wide applications in organic synthesis and for producing natural and medicinal compounds.
Molecular machines: Delving into the world of Supramolecualr ChemistryShreesha Bhat
油
This document provides an overview of molecular machines and supramolecular chemistry. It discusses how molecular machines are discrete assemblies designed to perform mechanical movements in response to stimuli. Natural molecular machines like biomotors are mentioned. The document also covers artificial molecular machines and how supramolecular chemistry utilizes non-covalent interactions and mechanical bonds to create interlocked structures like catenanes and rotaxanes. Efficient synthesis methods like template effects and click chemistry are summarized. Applications of molecular machines in drug delivery through molecular shuttling and switching are also highlighted.
Microwave assisted synthesis is a green chemistry approach that uses microwave irradiation to accelerate chemical reactions. It has several advantages over traditional heating methods, such as faster reaction times, higher product purity, and lower energy usage. Microwaves work by causing polarization and ionic conduction in polar solvents and reagents, quickly generating heat. Common applications include coupling reactions like Suzuki, Heck, and Negishi reactions. SiC microwave vessels are preferable to Pyrex as they absorb microwaves more efficiently and allow for better temperature control of exothermic reactions.
Importance of corporate design for successful brand planning / V箪znam korpor叩...adtomgreg
油
Presentation for the company LANEX a.s. (industrial and climbing ropes and cords, technical textile products) about the importance of brand identity. Presentation contains routemap for LANEX卒s own rebranding process. Presentation is in Czech.
The Mitsunobu reaction allows the conversion of alcohols to various functional groups using trialkyl/triaryl phosphine and dialkyl azodicarboxylate reagents. It proceeds via an oxidation-reduction mechanism. Common applications include esterification, etherification, and N-alkylation reactions. Recent advances have focused on replacing conventional reagents to improve selectivity and yields. The Mitsunobu reaction has been widely used in the synthesis of natural products and pharmaceuticals.
The nucleus accumbens is located in the basal ganglia and is involved in motivation, reward, pleasure, and addiction. Three key studies are summarized: James Olds and Peter Milner in the 1950s found that rats would compulsively press a lever to stimulate their nucleus accumbens with electricity, even to the point of starvation. A 2007 study used deep brain stimulation of the nucleus accumbens to treat severely depressed patients, finding short-term improvements in mood and motivation but no lasting effects. Axmacher's 2010 study used EEG to find that the nucleus accumbens and hippocampus activate in response to surprising events, indicating its role in memory formation and responding to both pleasurable and aversive experiences.
The document summarizes a deep learning event that was held with 210 participants from science, business and IT. Dr. Le Viet Quoc presented on deep learning research and took questions from attendees, answering 12 questions. After the event, attendees continued discussions and the event received press coverage from several technology publications.
Bandwidth Compression Project aims to develop proprietary compression technologies that can save 15% more bandwidth than existing solutions like WebP. The team has developed compression algorithms for various file types that have shown promising results in demonstrations. Current business models under consideration include licensing the technology to telecom companies, VPN/proxy vendors, and content companies. The leadership team brings decades of experience in computer science and startup success. Initial strategies will focus on direct sales of access services and approaching corporate customers for trials. The project aims to create a disruptive compression technology with widespread adoption like JPEG has achieved.
The Mannich reaction involves the condensation of an enolizable carbonyl compound, an aldehyde such as formaldehyde, and a primary or secondary amine. This results in an aminoalkylation and formation of a 硫-aminocarbonyl compound known as a Mannich base. Modifications using preformed Mannich bases and reactive substrates extend the scope and selectivity of the reaction. The Mannich reaction has wide applications in organic synthesis and for producing natural and medicinal compounds.
Molecular machines: Delving into the world of Supramolecualr ChemistryShreesha Bhat
油
This document provides an overview of molecular machines and supramolecular chemistry. It discusses how molecular machines are discrete assemblies designed to perform mechanical movements in response to stimuli. Natural molecular machines like biomotors are mentioned. The document also covers artificial molecular machines and how supramolecular chemistry utilizes non-covalent interactions and mechanical bonds to create interlocked structures like catenanes and rotaxanes. Efficient synthesis methods like template effects and click chemistry are summarized. Applications of molecular machines in drug delivery through molecular shuttling and switching are also highlighted.
Microwave assisted synthesis is a green chemistry approach that uses microwave irradiation to accelerate chemical reactions. It has several advantages over traditional heating methods, such as faster reaction times, higher product purity, and lower energy usage. Microwaves work by causing polarization and ionic conduction in polar solvents and reagents, quickly generating heat. Common applications include coupling reactions like Suzuki, Heck, and Negishi reactions. SiC microwave vessels are preferable to Pyrex as they absorb microwaves more efficiently and allow for better temperature control of exothermic reactions.