Brain networks in social media use: Reward - VTA, VMPFC, VS; Mentalizing - TPJ, ATP, IFG, PCC, DMPFC; Self-referential - MPFC
🧠 Neuroimaging & Brain Anatomy
A single-phase induction motor is a widely used AC motor in domestic and commercial appliances. It works on the principle of electromagnetic induction and has a simple and rugged construction similar to a three-phase squirrel cage induction motor.
Stator:
The stator is a stationary part made of laminated steel to reduce eddy current losses.
A single-phase winding is placed in slots distributed around the stator
1. Describe Types of Offer.
Definition (Section 2(a), Indian Contract Act, 1872):
When one person signifies to another his willingness to do or abstain from doing something, with a view to obtaining the assent of that other person to such act or abstinence, he is said to make a proposal or offer.
Explanation:
An offer is the first step in the formation of a contract. It expresses a person’s readiness to enter into a legal relationship on specific terms.
Types of Offers:
1. Express Offer: Made by...
Gram-positive, non-motile, and non-spore forming bacteria that are strict fermenters.
They are catalase and oxidase negative and can't synthesize cytochromes.
LAB can be either homofermentative or heterofermentative. The type of fermentation is determined by the enzymes produced by the organism.
Homofermentative: Converts glucose into two lactic acid molecules, with 85-95% of the glucose carbon ending up as lactate. This pathway uses the glycolytic (Embden-Meyerhof)
Input: users, movies, ratings → construct utility matrix.
Step 1: compute similarity between users (user-based) or movies (item-based).
Step 2: nearest neighbors identification using cosine/Pearson similarity.
Step 3: predict ratings for unseen movies via weighted average of neighbors’ ratings.
Step 4: recommend top-N movies with highest predicted ratings.
Handle sparsity with matrix factorization
Documents (after lowercasing and tokenizing words, remove punctuation):
D1: “the night is dark and the moon is red”
D2: “the moon in the night is red”
D3: “i can see moon is red the night is dark”
Step A — construct word sets / vectors (unified vocabulary):
Vocabulary (unique words across D1–D3):{the, night, is, dark, and, moon, red, in, i, can, see} (11 words)
i) Jaccard
(10 Marks)
Input matrices A and B stored in HDFS.
Map Phase: Emits key-value pairs for each element multiplication.
Mapper emits (i,j), value = A[i][k]×B[k][j].
Shuffle Phase: Groups values by (i,j).
Reduce Phase: Sums all values for each key (i,j).
Final result = Σ A[i][k]×B[k][j].
Each Mapper processes partial multiplication.
Reducer aggregates partial results.
Data locality optimizes performance.
Scalable to huge
Il Museo
Il termine "museo" deriva dal greco antico Mouseion (Μουσεῖον), che significa "luogo sacro alle Muse". Le
Muse erano le figlie di Zeus e protettrici delle arti e delle scienze, considerate le ispiratrici di ogni forma di
creazione intellettuale. Il primo Mouseion è stato la famosa Biblioteca di Alessandria d'Egitto, fondata nel III
secolo a.C. da Tolomeo I, che ospitava una vasta collezione di libri e manoscritti, dove studiosi, poeti e
filosofi...
Diffusion Theory explains how new ideas, innovations, or messages spread among members of a social system over time. In Public Relations, this theory helps understand how people adopt new information or behavior communicated by an organization.
Developed by Everett Rogers in his book “Diffusion of Innovations” (1962).
It describes how people move through stages before accepting an idea or innovation.
Awareness: