I.SEMESTER MAT-101 MATHEMATICS I (4+0) 4 (ECTS-6) Description of function, continuity, derivatives, differential geometric meaning of the recipe and applications, increasing and decreasing functions, maximum and minimum points, logarithmic, hyperbolic and inverse trigonometric functions, descriptions and derivatives, definite integrals and their use. FİZ-101 PHYSICS I (4+0) 4 (ECTS-5) Vectors, force and resultant forces, static equilibrium, center of gravity, Newton's laws of motion, friction, and friction forces, horizontal, vertical and oblique shots. Impulse and Momentum Conservation, radial velocity, and acceleration, simple harmonic motion, workforce and energy, heat concept, solid, liquid and gas volume change, the general gas equation, calorimeter., melting and evaporation, temperature, and specific heat KIM -101 CHEMISTRY (3+0) 3 (ECTS-5) Introduction (material, the metric system, chemical calculations), chemical equations and quantitative relationships, gases, solids, liquids and solutions, chemical kinetics, chemical equilibrium, acids and bases, electro-chemistry, atomic structure, chemical bonding. MM-101 TECHNICAL DRAWING I (2+2) 3 (ECTS-4) Definition of technical drawing, drawing, presentation materials, drawing paper, scale drawing, line types, and articles, geometrical drawings, the definition of projection, projection planes, creating views, auxiliary views, sections, perspectives, dimensioning, surface marks, tolerance, raster, and Interfaces. MM-103 COMPUTER PROGRAMMING (3+0) 3 (ECTS-4) The basic elements of the computer. Programming logic and algorithms. The basic elements of the FORTRAN programming language. Fortran program structured and systematic process of writing the program. Standard and custom data types. Variables. Mathematical processing operators. Input / output statements. Arrays. Control and Loops. Subroutines. MM-105 INTRODUCTION OF MECHANICAL ENGINEERING (2+0) 2 (ECTS-2) The definition and pursuit of engineering fields, engineering, history, mechanical engineering departments, courses, and specialized subjects, internships and career experience in the profession and science of ethics, the classification of the machines work, power, energy efficiency concepts such as giving the business generating machinery, power generating machinery, energy sources, design. TDB-121 TURKISH LANGUAGE I (2+0) 2 (ECTS 2) Turkish problems today with current texts, compound words, vowel and consonant harmony, spelling and punctuation rules, Text Mining, Speech disorders II.SEMESTER MAT-102 MATHEMATICS II (4+0) 4 (ECTS -6) Applications of definite integrals: area, volume and center of gravity calculations, polar coordinates, vectors, matrices, determinants and calculation rules, and solutions to systems of linear equations, lines and planes in the spatial coordinate axes transformation, multiple integrals and applications. FİZ-102 PHYSICS II (4+0) 4 (ECTS -5) Atom structure. Coulomb's law, electric field, electric field, potential and capacitors. Ohm's law, the resistance of a conductor and Kirchoft law, magnetic field, electromagnetic induction, optics, refraction and reflection laws. MM-102 STATIC (3+0) 3 (ECTS -5) Principles of mechanics, systems of units, vector operations, and pivot point around which moments of a force, the force pair. equivalent force systems, and special cases, distributed loads, the geometric center and center of gravity, balance, balance status, and special situations, structures, systems, mechanics, bar and cage systems, cables, friction force. MM-104 COMPUTER AIDED TECHNICAL DRAWING (2+2) 3 (ECTS -6) Introduction to computer aided technical drawing, basic drawing functions and multi-display methods. Twodimensional drawing and dimensioning applications (AutoCAD). The basic content of 3-D modeling. Drawing three-dimensional environment, solid modeling, and measurement, machine elements, assembly and disassembly drawings. MM-106 STATISTICS AND PROBABILITY (3+0 ) 3 (ECTS -4) Statistical distributions of characters, histogram and frequency distribution, determination of the mean value, standard deviation, statistical distribution functions, regression analysis, point estimation and statistical principles of decision making, hypothesis testing, the mean and the variance of the normal distributions for the retests. Interval estimation. Ranking and selection. Principles of decision theory. Non-parametric methods. Regression and correlation. Time series. Analysis of variance. TDB-122 TURKISH LANGUAGE II(2+0) 2 (ECTS -2) Turkish construction: Volume, structure and syntax highlighting features, Speech disorders related applications, scientific research and writing techniques, presentation making, and effective speaking techniques. MM-108 LINEAR ALGEBRA (2+0) 2 (ECTS- 2) Introduction to Matrix Algebra, Matrix addition and multiplication, determinants related application, methods of solution of systems of linear equations, vectors III. SEMESTER MM-201 DIFFERENTIAL EQUATIONS (3+0) 3 (ECTS -5) General definitions of differential equations of the first order differential equations, second order differential equations does not contain one of the variables, n. order linear and constant coefficient differential equations, linear differential equations with variable coefficients MM-203 MATERIALS SCIENCE (4+0) 4 (ECTS -5) Atomic structure of materials, crystal structures, deformation of materials, the structure of alloys, iron-carbon alloy system, heat treatments applied to steels, alloy steels, physical and mechanical properties of materials properties, stress and strain, modulus of elasticity, resilience, ductility and brittleness, toughness, hardness, and methods of measurement of hardness, microhardness, dynamic properties, notch impact test, metal fatigue, creep (creep), non-destructive testing of materials. MM-205 ELECTRIC-ELECTRONIC KNOWLEDGE (3+0) 3 (ECTS -5) Direct current circuits. Ohm's and Kirchhoff's laws, magnetic field. Ampere's law, a static electric field. capacitors. Alternating current circuits. Power and energy, non-sinusoidal currents, threephase current, rotating field, direct and alternating current circuits transients. Direct and alternating current conductor accounts. Measurement technique. MM-207 STRENGTH OF MATERIALS I (3+0) 3 (ECTS -5) Introduction to strength of materials, the principles of strength of materials, stress, mechanical properties of materials, thermal stresses resulting from the internal pressure stresses, principal stresses, Mohr's circle. Strain, Hooke's law, the general state, shear modulus. Vertical stress loaded beams, simple bending, bending shear stresses, principal stresses in bending. Slope and deflection of beams MM-209 DYNAMIC (3+0) 3 (ECTS -5) Basic concepts of dynamics. Kinematics of a particle: rectilinear, curvilinear motion. Linear and angular momentum. Newton's law of motion. Work-energy theorem. Dynamic equilibrium. Impulse-momentum theorem of particles. Kinematics of a rigid body. Relative motion, general plane motion. Kinetics of a rigid body. For the work-energy rigid body. MM-211 MEASURING TECHNIQUES (2+0)2 (ECTS -3) The definition and importance of measurement, Dimensional measurement, length measurement systems, measurement and characteristics of handling equipment measurement errors, adjustable measuring instruments, micrometers and types, measurement control instruments, gauge types, coniferous measurement and control instruments, comparators and their properties, passametreler, passimetreler, endiktörler, set squares, set squares and types of structure AIB-101 ATATURK'S PRINCIPLES AND HISTORY OF REVOLUTION (2+0) 2 (ECTS-2) The Industrial Revolution and the French Revolution, of the Ottoman Empire (XIX. century), administrative reforms, I. and II. Constitutional Monarchy, Tripoli and the Balkan Wars, World War I Armistice Armistice, Wilson, The Paris Conference, M. Kemal 'output and the situation in Anatolia, Amasya Circular, the National Congress, the opening of the Assembly of Deputies, parliamentary organization and internal revolts, the Organization-the constitution, the Regular Army Establishment, I. İnönü, II. , Kütahya-Eskişehir, Sakarya War and The Great Raid, War of the Treaties, the Treaty of Lausanne Abolition IV. SEMESTER MM-202 NUMERIC ANALYSIS (3+0) 3 (ECTS-4) Roots of Equations, Linear Algebraic Equations, Interpolation and Curve Fitting, Numerical Differentiation and Numerical Integration, Numerical Solution of Ordinary Differential Equations, Numerical Solution of Partial Differential Equations, Applications of the method described in MATLAB MM-204 ENGINEERING MATERIALS (2+0) 2 (ECTS -4) Recent developments in Materials Science and Engineering, and classification of materials, Metal-to-metal based materials, ceramic materials, composite materials, polymer materials, material properties, improving the selection of materials typical of the case studies MM-206 FLUID MECHANICS I (3+0) 3 (ECTS -5) Basic concepts of fluid statics, control zone for the integral equations, differential equations of fluid motion, dimensional analysis, flow in pipes, flow around submerged objects. MM-208 STRENGTH OF MATERIALS II (3+0) 3 (ECTS -4) Triaxial stress and strain, principal stresses, Mohr's circle, equilibrium equations, stress-strain relations. Theory of columns, strain work..Energy methods. Bending; Principal axes of inertia, conjugate axes. Torsion of prismatic bars and sprain. Fatigue. MM-210 MANUFACTURING TECHNIQUES (4+0)4 (ECTS -5) Iron and steel production. Casting processes. Powder metallurgy. Plastic forming processes; cold and hot deformation, rolling, forging, extrusion, bending. Pipe production. Casting, Die Casting, Plastic way to give input and techniques, machining processes, cutting tools, welding processes. MM-212 THERMODYNAMICS I (3+0) 3 (ECTS -5) Introduction to Thermodynamics. Thermal energy and mechanical energy, temperature and pressure. Thermodynamic Properties of Pure Substances. Principles of Conservation of Mass and Energy. I. Thermodynamics Law and Practice AIB-102 ATATURK'S PRINCIPLES AND HISTORY OF REVOLUTION II (2+0) 2 (ECTS -2) Political revolutions, political parties and the political transition to multi-party system, revolutions in law, reorganization of social life, economic innovations in the field. Turkish foreign policy in the period 1923-1938, after Atatürk Turkish foreign policy, Turkish Revolution Principles (republicanism, populism, secularism, reformism, statism, nationalism), complementary principles. MM-214 TRAINING I (ECTS -0) The student to recognize the plant, a plant-related issues is intended to give practical information. V.SEMESTER MM-301 MACHINE ELEMENTS I (3+0) 3 (ECTS-6) Basic concepts, Strength Calculation, Shafts and axles, shaft-hub connections, Wedges, Screws, Resource Links, Springs. MM-303 THERMODYNAMICS II (3+0) 3 (ECTS -5) Availability, irreversibility, II. The law efficiency, ideal cycles, Otto-Diesel-Hybrid cycles, Stirling and Ericsson cycles, Brayton cycle. Rankine cycle, combined heat power generation, refrigeration cycles and heat pumps. Gas mixtures and thermodynamic relations MM-305 MACHINE DYNAMICS (3+0) 3 (ECTS -4) Definition of mechanisms. Degree of freedom. Kinematic analysis of mechanisms. Static force analysis. Dynamic force analysis. The principle of virtual work. Static balancing. Dynamic balancing. The general plane motion compensation mechanisms. Balancing multicylinder engines MM-307 MECHANISM TECHNIQUE (3+0) 3 (ECTS -4) Vibration kinematics. Undamped and damped single degree of freedom systems. Vibration isolation. Two degree of freedom systems. Dynamic vibration absorbers. Multi degree of freedom systems: Determination of natural frequencies. Holzer method. Critical speeds of shafts. VI. SEMESTER MM-302 MACHINE ELEMENTS-II (3+0) 3 (ECTS -6) Couplings-Couplings, Gear Mechanisms, Friction, Journal Bearings, Rolling Bearings. Introduction of heat transfer, one-dimensional heat conduction in a continuous regime. MM-304 HEAT TRANSFER (3+0) 3 (ECTS -6) Thermal energy production. Extended surface heat transfer. Continuous two-dimensional heat transfer regime. Transient. Convective heat transfer, on the plate parallel to the flow, the flow in the pipe. Natural convective heat transfer. Heat exchangers and calculation methods. Radiation heat transfer, basic concepts, gray surfaces radiation, net radiation, and electrical simulation method MM-306 SYSTEM DYNAMICS (3+0) 3 (ECTS 7) Introduction to Laplace Transforms, System Dynamics, Transfer Function, Mathematical Models, Transient Response, Control Units, Closed-Loop Control, Stability, Frequency Response MM-308 TRAINING-II (ECTS -0) The production units of finished goods to the final shape, machining, chipless manufacturing, installation, maintenance and installation of advanced engineering practice units is considered VII.SEMESTER MM-401 MACHINE LABORATORY I (0+2) 1 (ECTS -4) Experiments related to mechanics of machines, heat transfer, fluid mechanics, materials. Provides with regard to the mechanical and dynamic. In the experiments, the magnitudes of mechanical engineering and monitoring aimed to examine various factors that affect MM-403 PROJECT (0+2) 1 (ECTS-7) Bachelor's Degree in a field related to Mechanical Engineering students are required to prepare a final project about a selected project. VIII. SEMESTER MM-402 MACHINE LABORATORY II (0+2) 1 (ECTS -4) Experiments related to mechanics of machines, heat transfer, fluid mechanics, materials science and mechanical include those related to. In the experiments, the magnitudes of mechanical engineering analysis and observation of various factors that affect the targeted. MM-404 FINAL THESIS (2+2) 3 (ECTS-7) Bachelor's Degree in a field related to Mechanical Engineering students under the supervision of the advisor on any subject chosen VIII. Half a year are required to prepare a final project. FALL SEMESTER DEPARTMENT OPTIONAL LECTURES MM-430 ENGINEERING ECONOMICS (3+0) 3 (ECTS-4) Decision-making in engineering, the concept of equivalence. The criteria used in the evaluation of investment alternatives, rate of return analysis, depreciation and amortization, equipment replacement analysis, cost of capital, capital resources, investment opportunities, opportunity cost. MM-432 MOTORS (3+0) 3 (ECTS -4) Power Machines and classification of internal combustion engines, the engines are some of the common definitions and concepts, theoretical engine cycle, the concepts of flame and burning rate, combustion, the actual motor efficiency definitions, expressions for engine power, gasoline engine detonation, diesel engine combustion chambers, fuel, diesel engines, diesel engines, combustion chambers, two-stroke engines, carburetors, fuel injection systems, diesel fuel injection systems, ignition systems, lubrication systems, cooling systems. MM-434 STEAM BOILERS (3+0) 3 (ECTS -4) Fluidized bed boiler technology and design, special boilers, fire-tube boilers, combustion control in boilers, steam boilers and boiler classification features, water tube boilers, combustion chamber, the air excess coefficient and grilled account the effect of flue gas analysis and combustion efficiency, flue account. MM-436 FINITE ELEMENTS I (3+0) 3 (ECTS -4) Introduction to finite element analysis, basic concepts, the implementation of boundary conditions. Numerical integration. One-dimensional problems. Beam element. Twodimensional finite element analysis of mechanical problems, triangular and rectangular elements, isoparametric elements. Computer applications using the finite element analysis. MM-438 PROCESS DEVELOPING TECHNIQUES (3+0) 3 (ECTS -4) The basic concepts of process technique, Mass and Energy Conservation, Heat and Mass Transfer, evaporation, distillation, humidification, drying, extraction, adsorption, crystallization processes, thermal-chemical processes: Case studies MM-440 COMPOSITE MATERIALS (2+0)2 (ECTS -4) Introduction to composite materials and applications, composite materials, reinforcement materials, matrix materials for composite materials, composite materials, micro-mechanical analysis, macro-mechanical analysis of composite materials, MM-442 RENEWABLE ENERGY RESOURCES (3+0) 3 (ECTS -4) Energy Resources and the resources used in the production of electrical energy. Hydroelectric, Thermal, Nuclear, Wind, Diesel, power plants, structure, function and features. Solar Cells, Fuel Cells. Plants and environmental issues MM-444 COOLING TECHNIQUE (3+0) 3 (ECTS -4) Cooling Technique Basic Concepts, cooling circuits, the cooling circuit elements, Refrigerants, cured meats, Insulation (Heat and Moisture Insulation) Cooling Load Calculation. MM-448 HYDRAULIC-PNEUMATIC (2+0) 2 (ECTS -4) Reminder of the basic rules of grammar, English professional terms and provisions and provide information about the application areas, examining the technical article. MM-446 BUSINESS ENGLISH (2+0) 2 (ECTS -4) Definition and uses of hydraulic, hydraulic control components, and pressurized water production. Compressed air generation, distribution, Pneumatic Control Components, Sensors, Actuators, pneumatic, electro-pneumatic, vacuum circuit design. SPRING SEMESTER OPTIONAL LECTURES MM-431 HYDRAULIC MACHINES (3+0) 3 (ECTS-4) Introduction and basic concepts, classification of hydraulic machines, Pumps, Speed triangles Affinity rates, Description Number, centrifugal pump selection and design, water turbines, classification, selection and design MM-433 MACHINE TOOLS (3+0) 3 (ECTS -4) Electronic data processing: Logical data processing circuit elements, computer hardware and software production process control, numerical control (NC) programming. Geometric processing of data, interpolation (linear, circular). Moving axis drivers, direct current, alternating current, hydraulic motors, ball screw-nut, table dynamics, numerical control to the position measurement devices, control loops, PID feedback circuits, continuous, discrete-time design, fault diagnosis of CNC machine tools, robot control, and overview, overview of computer integrated manufacturing. MM-435 TRANSPORT TECHNIQUE (3+0) 3 (ECTS -4) Transport engineering, construction principles and calculation methods. Simple carriers, continuous carriers, carriers of discontinuous MM-437 MANUFACTURING MANAGEMENT (2+0) 2 (ECTS -4) Manufacturing and Manufacturing Management Systems Development and Basic Concepts, Manufacturing Facility Site Selection and Design, Purchasing and Supply Management, Inventory and Warehouse Management, Manufacturing and Engineering Data Management (Product Trees and Workflows), Production Planning (MPS, MRP, CRP), Production Control, Product Cost Management, Sales and Distribution Management, Maintenance and Repair Management, Quality Management, Project Management, Performance Management, manufacturing Management Software packages and Selection MM-439 FINITE ELEMENTS II (3+0) 3 (ECTS -4) Introduction to modeling, numerical analysis techniques, finite element method, Engineering Analysis procedure analyzes (structural analysis, thermal analysis). MM-441 POLYMER BASED COMPOSITE MATERIALS (3+0) 3 (ECTS -4) Introduction to the mechanics of composite materials, polymer matrices, definition and types of polymer matrix composite mechanics and usage. MM-443 ENERGY UNITS (3+0) 3 (ECTS -4) Energy sources and classification, principles of operation of power plants, thermal power plants and types, fuel types, physical and chemical properties, thermal power plants, plant components, fuel and water treatment, condensate systems, thermal plants and power generation account, hydraulic power plants and varieties, the hydraulic energy plants, plant components, power plants, energy production accounts, and types of wind power plants, wind power plants energy production account, special type plants, cogeneration and applications, nuclear power plants. MM-445 COMPUTER AIDED MANUFACTURING (3+0) 3 (ECTS -4) Computers, CNC machines, G and M codes and information. Supp. Iml. methods MM-447 NON-DESTRUCTIVE TESTING METHODS (2+0) 2 (ECTS -4) Material clinical examination, testing standards, methods for hardness testing, non-destructive inspection methods, tension-compression, bending, torsion, fatigue, creep tests, nondestructive inspection methods MM-449 MECHANIC VIBRATIONS (2+0) 2 (ECTS -4) Mechanical systems and their properties, Newton's laws, the equation of motion and natural frequency analysis of the system, the system undamped and damped free vibration-time response of the system forced vibration-time response time response temporary pacing system in the event, two-and multi-degree of freedom equations of motion systems and frequency analysis, and prevention methods losses arising from vibrations. UNİVERSITY OPTIONAL LECTURES ÜS 001 SCIENCE HISTORY AND PHLOSOPHY (2+0) 2 (ECTS 3) Key Trends in Philosophy of Science, development and evolution of science, Logical Positivism, Thomas Kuhn and Scientific Revolutions, The Historical Development of the Theory of Evolution. ÜS 002 ENVIRONMENT AND ENERGY (2+0) 2 (ECTS 3) Energy sources, fossil fuels, combustion products, air pollution, global warming, nuclear power, hydroelectric power, solar energy, wind energy, wave energy, bio fuels, energy conservation, energy policy ÜS 003 INTRODUCTION TO BEHAVIORAL SCIENCE (2+0) 2 (ECTS 3) Society and Social Structure, socialization, social structure, family, psychology, science, sensation and perception, learning, personality, psychology and theories of personality, attitudes. ÜS 004 ENTREPRENEURSHIP (2+0) 2 (ECTS 3) Entrepreneurship in-house or a small family-run business-size, depending on the different types of emerging economic, legal, financial, behavioral, psychological, social and cultural aspects of the examination and evaluation of, be-know-do leadership (leadership theories, motivation, communication, team building, creativity) dimensions to be addressed both individually and as a societal process, defining the relationship between leadership and entrepreneurship entrepreneur-acting factors. ÜS 005 COMMUNICATION TECHNIQUE (2+0) 2 (ECTS 3) The basic concepts of communication, the historical development of mass communication, communication theory, and criticism of the practical rules of communication ÜS 006 BUSINESS PHYSICOLOGY (2+0) 2 (ECTS 3) The definition and importance of the work of human psychology, personality, and personality creation, obedience, discipline, a sense of work ethic, attendance, behavior, affecting the structural system, the hierarchy of needs and requirements, morale, monotony, conflicts and solutions ÜS 007 BUSINESS MANAGEMENT (2+0) 2 (ECTS 3) Basic concepts related to the management, development of management theory, human resources planning, production management, small business types, small business enterprise processes, problems and solutions to small businesses ÜS 008 CULTUREL HISTORY (2+0) 2 (ECTS 3) Cultural phenomenon, communication, art and the evolution of ideas, culture and the formation of cultural activities, artistic activities, functions, technological developments, the effects of culture to human life ÜS 009 ART HISTORY (2+0) 2 (ECTS 3) The meaning of art, nature, western art history, history of art east. ÜS 010 NON-GOVERNMENTAL ORGANIZATIONS (2+0) 2 (ECTS 3) What is civil society? What is Non-governmental organization (NGO)? The role and influence of NGO'S in society,socio-economic structure.Tthe role and condition of NGO's in the world.Tthe role and status of NGO'S Turkey.Introductıon of active NGO'S in Turkey. Participation on a voluntary basis to work in an NGO. ÜS 011 CIVILIZATION HISTORY (2+0) 2 (ECTS 3) What is the date, date types, and historical periods prehistoric periods, china, civilization, culture, and civilization, Indian civilization, culture and civilization, Mesopotamia civilizations, anatolian civilizations. FACULTY OPTIONAL LECTURES FS 001 INDUSTRY RELATIONS (2+0) 2 (ECTS 3) The birth and development of industrial relations, labor relations, the parties, trade unions, government intervention, collective bargaining, negotiations and collective agreements, rights and interests disputes, remedies in case of disagreement, the new industrial relations, human resource management and corporate culture, employment relationship and the use of force, complaints, discipline and recommendation systems, workforce productivity, participation in management, automation, environment and the effects of non-governmental organizations. FS 002 OCCUPATIONAL DISEASES (2+0) 2 (ECTS 3) Occupational disease definition, types, chemical, biological, physical, occupational causes, diseases, environmental health risk control and management, occupational diseases, safety and protection methods, occupational diseases in Turkey and around the world FS 003 TECHNOLOGY PHILOSOPHY (2+0) 2 (ECTS 3) Technical, technology, science, philosophy, art, and design concepts, and these concepts relate to each other FS 004 MANAGEMENT FOR ENGINEERS (2+0) 2 (ECTS 3) Introduction to engineering management, leadership and motivation, decision making, project planning, management, personal time management FS 005 ENGINEERING ETHIQUE(2+0) 2 (ECTS 3) Philosophy and ethics, general moral principles, the basic concepts of ethics, ethical theory, design, engineering ethics, corporate ethics, managerial ethics, product liability, compromise FS 006 QUALITY MANAGEMENT SYSTEMS AND APPLICATIONS (2+0) 2 (ECTS 3) ISO 9001 Quality Management System, ISO 14001 Environmental Management System and OHSAS 18001 Occupational Health and Safety Management System, this system needs to be done to implement the standards, requirements for system documentation, FS 007 TOTAL QUALITY MANAGEMENT (2+0) 2 (ECTS 3) Competition and quality concepts, and quality of the historical development of quality gurus, Total Quality Management Philosophy and Principles of quality culture in organizations and the responsibilities of the activities of quality, continuous improvement (Kaizen), quality costs, Total Quality Management, Suppliers, EFQM Excellence Model, ISO 9000:2008 Quality Management Systems FS 008 SAFETY (2+0) 2 (ECTS 3) Definition of accident at work, work accident types, occupational diseases, the root causes of accident, safety procedures, how the organization of occupational safety, accident investigation, the parties determine the rate of defect method, the preparation of the technical report FS 009 BUSINESS LAW (2+0) 2 (ECTS 3) Law; legal order the right to work, work organization, employment contract, and that contractual obligations, termination of contract law, work and rest periods, leave and holidays; occupational health and safety.