Notes, abstracts, papers, exams and problems of University

Verb Tenses

Present Continuous vs. Present Simple

1. I'm angry with William. I am not talking / don't talk to him.

2. Listen! My sister is singing / sings in the shower.

3. This cheese tastes / is tasting strange.

4. Are you thinking / Do you think Ann is pretty?

5. Laura is walking / walks to school every day.

Past Simple vs. Past Continuous

1. The sun SETS (set) in the west.

2. Please don't disturb me. I AM STUDYING (study).

3. I still DON’T KNOW (not know) the answer.

4. DO YOU ALWAYS GO (you / always /go) to the cinema on Friday nights?

5. We HAVE (have) a picnic next Sunday.

Present Simple vs. Present Continuous

6. How much DOES THIS PARCEL WEIGH (this parcel / weigh)?

7. Ms Rivers is busy at the moment. She IS TEACHING (teach).

8. Now I REMEMBER (remember)... Continue reading "Jamie Oliver: A Culinary Icon" »

Inventory Management

Safety Stock: The amount of inventory carried in addition to the expected demand.

Stock Keeping Unit (SKU): A common term used to identify an inventory item.

Material Requirements Planning (MRP)

Available to Promise: A feature of MRP systems that identifies the difference between the number of units currently included in the master schedule and actual (firm) customer orders.

Bill of Materials (BOM): A computer file that contains the complete product description, listing the materials, parts, and components, and the sequence in which the product is created.

Closed-loop MRP: The use of actual data from the production system to continually update the MRP system. This feedback is provided so that planning can be kept valid at all... Continue reading "Key Terms in Production and Inventory Management" »

The Waste Land by T.S. Eliot

1. Sections and Summaries

This poem comprises five sections:

• The Burial of the Dead

  Part I conveys a sense of apprehension and incomprehension among various characters in different situations. Madame Sosostris, a fortune-teller, adds to the confusion with enigmatic pronouncements that only gain clarity later in the poem. The city, particularly London, is depicted as a grim place inhabited by people unable to live fully or escape their deadness.

• A Game of Chess

  Part II presents two scenes showcasing the desolation of people's lives. The first depicts a richly decorated room where a wealthy lady's constant questions reveal her anxiety and lack of control. The second scene unfolds in a London pub, where two women discuss

... Continue reading "T.S. Eliot's The Waste Land: A Deep Dive" »

... Continue reading "Carthago Nova. Archeology and epigraphy in the city walls." »

Preparation of Naphthalene

Naphthalene is a fused-ring aromatic hydrocarbon with two benzene rings. It can be prepared via the following methods:

• From Coal Tar: Coal tar, a by-product of coal processing, is a major source of naphthalene. It is extracted and purified using distillation followed by crystallization.
• Synthesis from Benzene: Benzene undergoes a series of reactions to form naphthalene:
  • Alkylation: Benzene reacts with alkyl halides (like methyl chloride) to form methylbenzene (toluene).
  • Cyclization: Toluene undergoes further reaction with chlorine and heat to form naphthalene.

Preparation of Anthracene

Anthracene is a tricyclic aromatic hydrocarbon consisting of three fused benzene rings. It is mainly obtained from coal tar but can also... Continue reading "Synthesis and Sources of Aromatic Hydrocarbons" »

Insect Defenses Against Predators

Three Plant Mechanisms to Defend Against Insects

• Physical: Thick walls
• Chemical: Phytochemicals that kill insects
• Entrapment: Pitcher plants

How Insects Overcome Physical Defenses

• Specialized mandibles
• Evolution
• Immunity to phytochemicals
• Specialization to survive the digestive liquid of pitcher plants

Insect Parasitism

Endoparasites

Approximately 20% of insect orders include endoparasites. Some orders that include endoparasites are:

• Hymenoptera
• Diptera
• Strepsiptera

Ectoparasites

Some orders that include ectoparasites are:

• Anoplura
• Mallophaga
• Siphonaptera

Three Challenges Faced by Endoparasites

• Respiration
• Excretion/getting rid of toxic nitrogenous waste without killing the host
• Avoiding the host's endocrine system

Insect Social Behavior

Subsocial

... Continue reading "Insect Biology: Adaptations, Behaviors, and Ecology" »

diga la naturalez ade lps medios alternativos de solucion de conflictos
son contrahegemonicos porque nacieron , en lo moderno en rusia para oponerse al poder opresor del estado
carasteristicas de los medios alternativos de solucion de conflictos
si son voluntarios , si son formales ,
la mediacion y la negociacion son informales
el arbitraje y la mediacion son formales
que limita al poder hegemonico de los gobiernos
lo alternativo o segunda opcion y posibilidad de resolver los problemas , sin la intervencion del poder opresor y hegemonico del estado
A YEGAR A UN ACUERDO


explique los principales procesos alternativos
transaccion o negociacion , mediacion, arbitraje y conciliacion
cricis que atraviesa ell poder judicial
el congestionamiento... Continue reading "Medios alternativos en la solucion de conficto" »

#useradd nombredeusuario :: para crear usuarios

#passwd :: nombredelusuario

#groupadd :: nombredelgrupo :: (forma normal)

#groupadd -g 600 nombredelgrupo :: (guid sobre 650)

#userdel nombredelusuario :: para deletear usuarios

#groupdelnombredelgrupo :: borrar el grupo

#usermod -G nombredelgrupo nombredeusuario :: para asignar usuario a grupo.

opcion 2: editar archivo /etc/group -> grupo:x:600:usuarioqueseagregara

#nano /etc/shadow :: para poder ver los usuarios y poder bloquearlos

#passwd -l nombredeusuario :: para bloquear usuario

#passwd -u nombredeusuario :: para desbloquear usuario

#sudo passwd :: para cambiar la contraseña de root

# tail /etc/passwd :: paraver informacion de usuarios

#su nombredelotrousuario :: para iniciar sesion como el usuario... Continue reading "Centos 5.5" »

1. Classifique as variáveis em qualitativa e quantitativa. () Cor preferida. () Índice de liquidez. () Sexo. e) qualitativa, quantitativa, qualitativa .
2. Classifique as variáveis quantitativas em contínuas (c) ou discretas (d).
( ) População: atletas Variável: altura ( ) P.: pacientes de um hospital Variável: pacientes com insuficiência cardíaca. ( ) P.: bebês monitorados em uma UTI neonatal Variável: peso b) contínua, discreta, contínua.
3. Em uma escola de ensino médio, há 300 alunos divididos em 6…..b)36
4. São fases do método estatístico:
1. A apuração. 2. A coleta. 3. A crítica. 4. A definição do problema. 5. O planejamento.
Qual a ordem correta dessas fases? b. 4, 5, 2, 3, 1
5. Considere a série abaixo. Podemos

... Continue reading "Case" »

Opportunity Cost of Capital: Expected rate of return given up by investing in a project.
NPV: Present value of cash flows minus investments
Payback period: Time until cash flows recover the initial investment in the project.
IRR: Discount rate at which project NPV = 0
Profitability Index: Ratio of net present value to initial investment
Opportunity Cost: Benefit or cash flow as a result of an action
Net Working Capital: Current assets minus liabilities
Depreciation Tax Shield: Reduction in taxes attributable to depreciation
Operating Leverage: Degree to which costs are fixed
Market Index: Measure of the investment performance of the overall market
Maturity Premium: Extra avg. return from investing long vs. short- term treasury securities
Risk Premium:... Continue reading "Finan midterm" »