Medical

Nursing Calculations

Author: John D. Gatford,Nicole Phillips

Publisher: Elsevier Health Sciences

ISBN: 0702063355

Category: Medical

Page: 176

View: 9761

This internationally renowned guide to basic arithmetic for nursing students has been completely revised and updated for a new generation of readers. Now entering its ninth edition, Nursing Calculations comes with a quick-reference card fits in the pocket to remind readers of essential formulae and AN ON-LINE PROGRAM TO ALLOW FURTHER SELF-TESTING VIA THE USE OF COMPUTERS AND MOBILE DEVICES. Over 200,000 copies sold since publication! Initial self-testing chapter allows readers to identify and address areas of difficulty before moving onto practical examples ‘Important Boxes’ highlight potential pitfalls for the reader Special section on paediatrics covers medication calculations relating to body weight and body surface area Contains glossary and useful abbreviations Brings together basic math skills and clinical examples to prepare readers for real life drug calculations Quick-reference card fits in the pocket and remind readers of essential formulae Questions have been revised and updated when necessary to reflect current practice New material includes the use of medication charts in questions that involve medication labels Additional worked examples facilitate understanding of the 24-hour clock Contains a new revision chapter to help consolidate learning NOW COMES WITH AN ON-LINE PROGRAM TO ALLOW FURTHER SELF-TESTING VIA THE USE OF MOBILE DEVICES!
Medical

Clinical Nursing Calculations

Author: Sienkiewicz,Jennifer F. Palmunen

Publisher: Jones & Bartlett Publishers

ISBN: 1284057526

Category: Medical

Page: 592

View: 5946

Clinical Nursing Calculations Includes Navigate 2 Advantage Access
Medical

Practical Nursing Calculations

Getting the Dose Right

Author: Valda Hext,Lidia Mayner

Publisher: Allen & Unwin

ISBN: 9781865088747

Category: Medical

Page: 304

View: 8706

A step-by-step guide to calculating the correct medication dosages. Using realistic hospital scenarios, this is a must for undergraduate nursing students.
Medical

Dosage Calculations

Author: Gloria D. Pickar

Publisher: Cengage Learning

ISBN: 9780766862869

Category: Medical

Page: 552

View: 1105

This perennial best seller has set the standard for dosage calculations. This formula method text contains more practice questions than any competitor; full color labels; equipment; pediatric dosages; and even advanced calculations. New to this edition are a more streamlined presentation; new drug labels; smaller doses for pediatric calculations; and an interactive CD-ROM with improved functionality
Medical

Calculation of Drug Dosages

A Work Text

Author: Sheila J. Ogden,Linda Fluharty

Publisher: Elsevier Health Sciences

ISBN: 0323293905

Category: Medical

Page: 640

View: 5336

Master the critical skills necessary to competently and confidently calculate drug dosages using Calculation of Drug Dosages. Written by Sheila J. Ogden, MSN, RN and Linda Fluharty, RNC, MSN, this updated 9th Edition provides you with an extensive review of essential math concepts before introducing and clearly explaining the ratio and proportion, formula, and dimensional analysis methods of drug calculation. The book's popular "worktext" format builds on concepts as you go and reinforces what you learn with over 1,800 practice problems. Identify your strengths and weaknesses with an extensive math review, covering the basic math skills essential for accurate calculation of drug dosages. Use chapter worksheets to practice solving realistic problems. Assess your understanding of chapter content using post-tests at the end of each chapter. Retain content more easily and build on your prior knowledge through a logical organization. Get additional practice and accurately gauge your overall understanding with a comprehensive post-test at the end of the book. Stay focused with learning objectives that explain what you should accomplish upon completion of each chapter. Know the latest drugs and technology used in the market with updated drug labels and equipment photos. Study at your own pace with 25 flash cards, now on Evolve, containing abbreviations, formulas, and conversions from the book. Check your work and see your mistakes with a detailed step-by-step answer key. Tap into a new chapter on obstetric dosages that provides you with practice problems using medications unique to this important nursing subspecialty. Use alert boxes that call attention to information crucial to math calculation and patient safety. Stay current with new content on Intake and Output (I & O). Reduce medication errors and increase patient safety via updated guidelines for The Joint Commission and Institute for Safe Medication Practice. Recognize the implications of drug accuracy with more drug labels added to critical care practice problems. Access Evolve online resources where you'll see 5-10 new practice problems related to each chapter and the new updated Drug Calculations Companion (Version 4), featuring an interactive student tutorial that includes an extensive menu of various topic areas within drug calculations such as oral, parenteral, pediatric, and intravenous calculations to name a few. And over 600 practice problems cover ratio-proportion, formula, and dimensional analysis methods.
Medical

Dosage Calculations: A Ratio-Proportion Approach

Author: Gloria D. Pickar,Amy Pickar-Abernethy

Publisher: Cengage Learning

ISBN: 1305446011

Category: Medical

Page: 784

View: 9649

An excellent resource for anyone in or entering the field, market-leading DOSAGE CALCULATIONS: A RATIO-PROPORTION APPROACH, fourth edition, teaches users how to reduce errors while building their confidence in dosage calculation. Extremely reader friendly, the text includes a comprehensive math review, full-color drug labels, and numerous critical thinking assessments. It carefully examines both basic and advanced calculations, including intravenous medications and those specific to the pediatric patient. Reducing the math anxiety that many readers have, the text's unique three-step method of calculating dosages-Convert, Think, Calculate-trains students to approach calculations logically and with a decreased risk of medication errors. The fourth edition reflects the most current drugs and protocol, regulations on medication abbreviations, medication administration technologies, and safe medication practices. Clinical simulations and Clinical Reasoning Skills scenarios based on QSEN principles help students develop clinical reasoning skills, while Section Examinations include test items formatted like graduate licensure examinations. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.
Medical

The Nurse, The Math, The Meds

Drug Calculations Using Dimensional Analysis

Author: Joyce L. Mulholland

Publisher: Elsevier Health Sciences

ISBN: 0323293824

Category: Medical

Page: 616

View: 6899

Use the simplicity of the dimensional analysis method to minimize drug calculation errors! The Nurse, The Math, The Meds, 2nd Edition helps you overcome any math anxiety you may have by clearly explaining how to use the dimensional analysis method. It shows how to analyze practice problems, find the reasonable answer, and then evaluate it. But first, it lets you refresh your math skills with a review of essential math. Written by noted nursing educator Joyce Mulholland, this book offers over 1,400 questions for plenty of practice in mastering math concepts and learning dosage calculations. A comprehensive math review at the beginning of the book includes a self-assessment test to help you identify areas of strength and weakness. A consistent chapter format includes objectives, essential prior knowledge, equipment needed, estimated time to complete the chapter, key vocabulary, and more. Rapid Practice exercises follow each new topic with multiple practice problems, so you can apply concepts immediately. A full-color design includes a special margin section so you can work out practice problems on the spot. Mnemonics make memorization easier and save time in learning. Test tips enhance your comprehension and improve test-taking skills and comfort level. Red arrow alerts call attention to critical math concepts and patient safety theory. Clinical Relevance boxes help you apply medication-related concepts to practice. Unique! FAQ and Answers are derived from students' actual classroom questions, and are especially useful if you are studying outside of a classroom environment. Unique! Ask Yourself questions help in synthesizing information and reinforcing understanding. Unique! Communication boxes include sample nurse-patient and nurse-prescriber dialogues that illustrate clinical application of medication administration. Cultural boxes describe selected math notation and medication-related cultural practices. TJC and ISMP recommendations for abbreviations, acronyms, and symbols are used to reduce medication errors, increase patient safety, and ensure compliance with agency regulations. Online and print references provide opportunities for further research and study. Two chapter finals are included at the end of each chapter. Two comprehensive finals evaluate your understanding, one in NCLEX® exam-style multiple-choice format and the other following a traditional written format. Answer key in the back of the book provides step-by-step solutions to the Rapid Practice exercises, chapter finals, and comprehensive finals so you can pinpoint specific areas for further review. A red flag icon calls attention to high-risk medications. Updated trends in safer medication administration help in reducing sentinel events and adverse drug events. Practice problems are more clinically relevant and organized from simple to complex. Additional clinical relevance, communication, and cultural boxes help prevent errors by offering a variety of examples from clinical practice. Updated content includes: More realistic fraction and decimal problems Expanded Total Parenteral Nutrition (TPN) section with a typical order, common errors, and current guidelines to reduce errors Updated coverage of pediatric medication
Medical

Calculation of Drug Dosages

A Work Text

Author: Sheila J. Ogden,Linda Fluharty

Publisher: Elsevier Health Sciences

ISBN: 0323393667

Category: Medical

Page: 624

View: 1990

Known for its textbook/workbook format, Calculation of Drug Dosages, 10th Edition makes it easy to master the ratio and proportion, formula, and dimensional analysis methods for drug calculation. A basic review of mathematics refreshes your math skills, and plenty of practice problems help you overcome any inexperience or weaknesses you may have. Written by nursing experts Sheila Ogden and Linda Fluharty, this resource helps you calculate drug dosages accurately and with confidence. An extensive math review covers the basic math skills essential for accurate calculation of drug dosages and helps you identify your strengths and weaknesses. Over 1,800 practice problems reinforce your understanding of drug calculations. A logical structure is organized from simple to complex, making it easier to absorb and retain knowledge. Learning objectives keep you focused and explain what you should accomplish upon completion of each chapter. An Alert box highlights information crucial to math calculation and patient safety. Chapter worksheets allow you to practice solving realistic problems. Post-tests at the end of each chapter let you assess your understanding of content. A comprehensive post-test at the end of the book offers additional practice and accurately gauges your overall understanding. Over 600 practice problems on the Evolve companion website cover ratio-proportion, formula, and dimensional analysis methods. 25 flash cards on Evolve contain abbreviations, formulas, and conversions from the book, allowing you to study at your own pace. UPDATED drug labels and equipment photos show the latest drugs and technology used in the market. NEW! Additional Intake and Output problems are included, and the apothecary method is minimized and moved to the appendix. NEW! Easy-access answer key is placed at the end of each chapter rather than in the back of the book.
Medical

Math for Nurses

A Pocket Guide to Dosage Calculation and Drug Preparation

Author: Mary Jo Boyer

Publisher: Lippincott Williams & Wilkins

ISBN: 9780781763356

Category: Medical

Page: 368

View: 1491

Now in its Seventh Edition, this pocket guide is a compact, portable, easy-to-use reference for dosage calculation and drug administration. The author uses a step-by-step approach with frequent examples to illustrate problem-solving and practical applications. Coverage includes review of mathematics, measurement systems, and a comprehensive section on dosage calculations. Practice problems throughout the text and end-of-chapter and end-of-unit review questions will aid students' application and recall of material. A handy pull-out card contains basic equivalents, conversion factors, and math formulas.
Medical

Drug Calculations - E-Book

Ratio and Proportion Problems for Clinical Practice

Author: Meta Brown,Joyce L. Mulholland

Publisher: Elsevier Health Sciences

ISBN: 0323292976

Category: Medical

Page: 464

View: 6117

Covering the ratio and proportion method of drug calculations, Drug Calculations: Ratio and Proportion Problems for Clinical Practice, 9th Edition provides clear, step-by-step explanations and concise examples to ensure safety and accuracy. Unique to this book, a "proof" step in the answer key lets you double-check your calculation results to avoid medication errors. Safety is also addressed through the inclusion of Quality & Safety Education for Nurses (QSEN) information and with features such as Clinical Alerts and High Alert drug icons calling attention to situations in actual practice that have resulted in drug errors. Written by Meta Brown Seltzer and Joyce Mulholland, this text includes extensive hands-on practice with calculation problems, critical thinking exercises, worksheets, and assessment tests. And to boost your proficiency, a companion Evolve website adds more than 600 additional practice problems. The ratio and proportion method provides a logical, accurate, and consistent method of drug calculation. Step-by-step format for each problem includes a unique "proof" step in the answer key to ensure that you understand the solution. Clinical Alerts highlight potential and common drug calculation errors. Critical thinking exercises help you apply analytical skills and drug calculations to clinical practice. A patient safety chapter enhances your understanding of drug labels, medication administration forms, and physician's order forms. Over 1,100 practice problems offer the extensive practice you need to become proficient in drug calculations. Multiple-choice worksheets within each chapter help you prepare for the NCLEX examination. Worksheets follow each chapter section for additional practice and application of drug calculations. Chapter Finals and a Comprehensive Final let you evaluate your mastery of drug calculations. Current recommendations from The Joint Commission and the Institute for Safe Medication Practices help reduce medication errors and promote patient safety. Quality & Safety Education for Nurses (QSEN) information highlights ways to reduce medication errors. A high-risk medication icon calls attention to medications that have the most potential to cause harm to patients. Updated, full-color drug labels and equipment photos (including pumps and IV equipment) show what you will encounter in the clinical setting.
Medical

Calculate with Confidence, Canadian Edition

Author: Deborah C. Gray Morris,Marcia Brown

Publisher: Elsevier Health Sciences

ISBN: 1771720654

Category: Medical

Page: 744

View: 3206

This Canadian text covers the ratio and proportion, formula, and dimensional analysis methods offering a step-by-step approach to the calculation and administration of drug dosages. With over 2,000 practice problems, Gray Morris focuses on enhancing the learning experience of nursing students at all curricular levels by making content clinically applicable. Calculate with Confidence, First Canadian Edition addresses the increasing responsibility of the nurse in medication administration, prioritizes patient safety, and reflects the current scope of practice. Tips for Clinical Practice boxes call attention to information critical to math calculation and patient safety. Safety Alert boxes highlight issues that may lead to mediation errors and empower you to identify actions that must be taken to avoid calculation errors Chapter review problems test all major topics presented in the chapter. Basic math post-test allows you to assess and evaluate your understanding of basic math material covered in Unit 1, directing you to review chapters if you miss any of these test questions. Basic math pre-test review helps you assess your basic math skills and identify areas of strength and weakness in competency of basic math. Comprehensive Test at the end of text offers complete coverage of dosage calculations and conversions, using real-life drug label and situations. SI units and generic/Canadian drug names throughout NCLEX-format questions on Evolve to help prepare for the type of questions you will see on the NCLEX-RN® Examination Real-world examples and practice problems throughout the text. Strong emphasis on safety throughout.
Medical

Mulholland's The Nurse, The Math, The Meds - E-Book

Drug Calculations Using Dimensional Analysis

Author: Susan Turner

Publisher: Elsevier Health Sciences

ISBN: 0323529488

Category: Medical

Page: 560

View: 860

Use the simplicity of the dimensional analysis method to make accurate drug calculations! Mulholland’s The Nurse, The Math, The Meds, 4th Edition helps you overcome any math anxiety you may have by clearly explaining how to use dimensional analysis to minimize drug calculation errors. It shows how to analyze and set up problems, estimate a reasonable answer, and then evaluate the answer for accuracy. But first, a review of basic math ensures that you remember essential math skills. Updated by nursing educator Susan Turner, this edition includes plenty of practice exercises to help you understand and master each aspect of dimensional analysis. UNIQUE! Useful FAQs and answers in each chapter are based on years of classroom questions compiled by the author. UNIQUE! Communication boxes show sample nurse-patient and nurse-prescriber dialogues, relating the math to the medications and to clinical application. UNIQUE! Ask Yourself questions help you synthesize information and reinforce your comprehension. Rapid Practice quizzes provide practice problems following each new topic, making it easy to master both math concepts and drug calculation at the same time. Mnemonics offer shortcuts to make memorization easier, and save time in learning. Red arrow alerts call attention to potential math errors and patient safety issues. High-risk drug icons are used to highlight potentially dangerous drugs. Multiple choice-format questions at the end of each chapter help you review the material and prepare for the NCLEX® exam. Chapter finals boost your understanding by providing additional practice with the major concepts covered in each chapter; the answer key shows how to work out the problems. Comprehensive final practice boosts your understanding by providing additional practice with the major concepts covered through the entire text; the answer key shows how to work out the problems. NEW and Updated! Safety-related procedures and protocols include the newest ISMP, JCAHO, and QSEN safety standards and new content on drug calculations. NEW and Updated! Photos and medication labels ensure that you are up to date on today’s medications. NEW! SBAR information describes Situation, Background, Assessment, Recommendation in Metric Units and Conversions chapter. NEW information on health care provider orders is added to Oral Medications chapter. NEW table of insulins and their uses is included in Antidiabetic Medications chapter. NEW content on thrombolytics, clotting inhibitors, anti-platelet aggregants, and herbal supplements is included in Anticoagulant Medications chapter.
Medical

Dosage Calculation Practice for Nurses

Author: Bonita E. Broyles

Publisher: United Nations Publications

ISBN: 9780766841956

Category: Medical

Page: 221

View: 4790

From the leading publisher of dosage calculations materials comes one thousand additional questions in the basic and advanced core areas of the subject! Allowing users to answer practice problems related to tablets, capsules, liquids, and powder, Dosage Calculation Prractice For Nurses is the only true practice tool available of its kind. Use this unique text in conjunction with any proven Delmar Learning dosage calculation product, or to refresh your skills for a return to the clinical setting!
Medical

Calculating Drug Dosages

A Patient-Safe Approach to Nursing and Math

Author: Sandra Luz Martinez de Castillo,Maryanne Werner-McCullough

Publisher: F.A. Davis

ISBN: 0803644795

Category: Medical

Page: 563

View: 1615

Master math concepts. Ensure patient safety. Conquer your fears and understand the most common math concepts used in nursing practice today. Step-by-step guidance shows you how to accurately calculate drug dosages using all four methods. Build your confidence with thousands of review questions in the text.
Medical

Essential Calculations for Veterinary Nurses and Technicians - E-Book

Author: Terry Lake,Nicola Green

Publisher: Elsevier Health Sciences

ISBN: 0702070777

Category: Medical

Page: 166

View: 4791

Learn to easily master the types of veterinary nursing calculations you will face on the job with Essential Calculations for Veterinary Nurses and Technicians, 3rd Edition. From basic arithmetic to dilutions and statistics, this useful text covers all aspects of calculations as applied to veterinary nursing. Readers will benefit from the text’s common sense approach to clinical situations, and complete the book knowing how to use calculations to determine dosage rates, anesthetic flow rates, radiography exposure rates, parenteral nutrition, and more. User-friendly features include simple language, detailed explanations, ample examples, and special author guidance so that content is easy to follow and understand. Plus, the text’s abundance of learning features — such as self-assessment questions, clinical hints, and tips — help clarify important concepts and ensure that you have mastered everything you need to make calculations in the day-to-day clinical environment. Self-test sections with clinical hints and tips ensure retention of core concepts. Mathematical explanations using veterinary terms presents all principles in a manner that directly pertains to the veterinary field. Comprehensive content covers everything from basic arithmetic to dilutions and statistics so users have everything needed to succeed in calculations for veterinary nursing and technology. Dimensional analysis bridge method removes the necessity of memorizing formulae and takes advantage of simplifying equations so that calculators are often unnecessary. NEW! Reviewed and updated drugs throughout the book provide dosage calculations that coincide with drugs currently used in the field for the most clinical relevance. NEW! Additional math problems housed on the Evolve companion website offer substantial additional practice.
Medical

Drug Calculations

Ratio and Proportion Problems for Clinical Practice

Author: Meta Brown,Joyce L. Mulholland

Publisher: Elsevier Health Sciences

ISBN: 032337722X

Category: Medical

Page: 512

View: 5294

Extensively covering the ratio and proportion method, Drug Calculations: Ratio and Proportion Problems for Clinical Practice, 10th Edition is known for its realistic practice problems and unique "proof" step in the answer key that lets you double-check your answers to avoid medication errors. This text addresses the current issue of patient safety with respect to accurate drug dosages through the inclusion of QSEN competencies recommendations — and with features such as new Clinical Relevance boxes and Clinical Alerts that call attention to situations in actual practice that have resulted in drug errors. You will get extensive hands-on practice for the NCLEX Exam through the text’s calculation problems, critical thinking exercises, worksheets, and assessment tests. Over 1,100 practice problems in ratio and proportion offer the extensive practice needed to become proficient in drug calculations. Step-by-step format for each problem includes a unique Proof step in the answer key to ensure that you understand the solution. Patient Safety chapter helps you prevent medication errors and understand drug labels, medication administration forms, and physician's order forms. Multiple-choice Worksheets within each chapter help you prepare for the NCLEX examination. Critical thinking exercises aid you in applying analytical skills and drug calculations to clinical practice. Clinical Alerts highlight potential and common drug calculation errors. Full-color drug labels and equipment illustrations provide you with a realistic representation of medication administration and what you will encounter in the clinical setting. Detailed coverage of the ratio and proportion method provides a logical, accurate, and consistent method of drug calculation. Worksheets follow each chapter section for additional practice and application of drug calculations. NEW! Vocabulary section at the beginning of each chapter provides you with a convenient reference to definitions of terms used throughout the chapter. NEW! Clinical Relevance boxes integrate medication–related clinical practice concepts, such as: nursing practice, high-risk medications, safety issues, and common administration errors.
Medical

Clinical Calculations - E-Book

With Applications to General and Specialty Areas

Author: Joyce LeFever Kee,Sally M. Marshall

Publisher: Elsevier Health Sciences

ISBN: 0323293476

Category: Medical

Page: 416

View: 1145

The only text that covers all four major methods of drug calculation, Clinical Calculations: With Applications to General and Specialty Areas, 7th Edition emphasizes patient safety above all else. It reflects the medications used in clinical practice today, with clear guidelines on the latest drug administration forms, techniques, and devices for both general and specialty areas. Plus, its user-friendly format and abundance of practice problems make it easy to understand and apply key drug calculation concepts. Coverage of all 4 major drug calculation methods — ratio & proportion, formula, fractional equation, and dimensional analysis — allows you to apply the method that works best for you. A section on specialty areas and lifespan prepares you for the wide range of clinical calculations needed to practice in pediatric, critical care, labor & delivery, and community settings. Caution boxes alert you to problems or issues related to various drugs and their administration. A comprehensive post-test enables you to test your understanding of key concepts from the text. Current drug information ensures you are familiar with the most commonly used drugs in clinical practice. Up-to-date content on the latest drug administration techniques and devices helps you master the various forms of drug administration, including oral, intravenous, intra-muscular, subcutaneous, and other routes. Remember boxes identify pertinent concepts you should commit to memory. Note boxes emphasize important points related to concepts presented in each chapter. NEW! Prevention of Medication Errors chapter emphasizes patient safety to help you avoid common drug calculation and administration mistakes. NEW! Updated recommendations from The Joint Commission and the Institute for Safe Medication Practices offer helpful guidelines for reducing medication errors to ensure safe patient care outcomes. NEW! Updated medication label and equipment photos reflect the latest medications and technology used in drug administration.
Medical

Drug Calculations for Nurses, 4th Edition

A step-by-step approach, Fourth Edition

Author: Robert Lapham

Publisher: CRC Press

ISBN: 1482248468

Category: Medical

Page: 334

View: 6642

The administration of drug treatments in hospitals has become increasingly complex. It sometimes involves potent drugs that may be fatal if administered incorrectly. The ability to perform drug calculations accurately is therefore paramount to prevent placing patients at risk. Drug Calculations for Nurses: A Step-by-Step Approach teaches healthcare professionals how to perform drug calculations with confidence and competence. It provides step-by-step guidance to carry out accurate drug calculations, with units and drug strengths clearly explained. This bestselling pocket-size book begins with the basic mathematical skills required to perform calculations, including tips on estimating answers. It then covers drug strengths and concentrations, dosage calculations, IV infusion therapies, and pharmacodynamics and pharmacokinetics. Two separate chapters focus on children and the elderly, addressing specific challenges encountered in these populations. Helpful worked examples, key points, and objectives are included in every chapter. Useful tables with common prescription abbreviations, estimation of renal function, and body surface area estimates are easily accessible through the appendices. This new edition comes with an online pre-test enabling readers to benchmark their knowledge. Specific weaknesses can then be identified and addressed in the printed book. Also included is a revision test that allows readers to assess their ability to perform drug calculations after completing the book.
Study Aids

How to Master Nursing Calculations

Improve Your Maths and Make Sense of Drug Dosage Charts

Author: Chris John Tyreman

Publisher: Kogan Page Publishers

ISBN: 0749467541

Category: Study Aids

Page: 224

View: 2147

For the maths-phobic, this 2nd edition of the best-selling How to Master Nursing Calculations, is ideal practice for learning key numeracy skills. The perfect companion for your training and in the first few crucial years of your career, it builds your competency through practice, revision and every day examples. Contents includes a review of the basics, clear illustrations of instrument scales, medical administration records and pharmaceutical labels as well as a detailed guide to reading drug dosage charts. Including a brand new list of important abbreviations and a section on how to make drug calculations without equations - requiring little mathematical knowledge - How to Master Nursing Calculations, 2nd edition, will help you master complex dosages and turn you into a maths whiz.