Rakuten Kobo

Ostoskori

Nimikettä/nimikkeitä ei voi ostaa

Tarkasta ostoskorisi sisältö. Voit poistaa ei-saatavilla olevia nimikkeitä nyt, tai poistamme ne automaattisesti maksuvaiheessa.

nimikkeetnimike

- Rajoittamaton pääsy e-kirjoihin
  
  Rajaton käyttöoikeus äänikirjoihin
  
  Ei sitoumuksia, voit peruuttaa milloin tahansa osoitteessa kobo.com/account/subscriptions
  
  Saat joka kuukausi yhden krediitin, jonka voit käyttää valitsemaasi äänikirjaan
  
  Ei sitoumuksia, voit peruuttaa milloin tahansa osoitteessa kobo.com/account/subscriptions
  
  Rajoittamaton pääsy e-kirjoihin
  
  Rajaton käyttöoikeus äänikirjoihin
  
  Ei sitoumuksia, voit peruuttaa milloin tahansa osoitteessa kobo.com/account/subscriptions
  Äänikirja
  kirjoittanut ,
  
  Saatavilla:
  
  . Ei sitoumuksia, voit peruuttaa milloin tahansa osoitteessa kobo.com/account/subscriptions.
  
  Tee ennakkotilaus
  1 äänikirja joka kuukausi
  
  + ILMAINEN 30 päivän kokeilu
  
  Erikoistarjous
  
  Saat joka kuukausi yhden krediitin, jonka voit vaihtaa valitsemaasi äänikirjaan
  
  * Ei sitoumusta, peru milloin tahansa
  
  ILMAINEN

nimikkeetnimike

Rajoittamaton pääsy e-kirjoihin

Rajaton käyttöoikeus äänikirjoihin

Ei sitoumuksia, voit peruuttaa milloin tahansa osoitteessa kobo.com/account/subscriptions

Saat joka kuukausi yhden krediitin, jonka voit käyttää valitsemaasi äänikirjaan

Ei sitoumuksia, voit peruuttaa milloin tahansa osoitteessa kobo.com/account/subscriptions

Rajoittamaton pääsy e-kirjoihin

Rajaton käyttöoikeus äänikirjoihin

Ei sitoumuksia, voit peruuttaa milloin tahansa osoitteessa kobo.com/account/subscriptions
Äänikirja
kirjoittanut ,

Saatavilla:
. Ei sitoumuksia, voit peruuttaa milloin tahansa osoitteessa kobo.com/account/subscriptions.

Tee ennakkotilaus
1 äänikirja joka kuukausi

+ ILMAINEN 30 päivän kokeilu

Erikoistarjous

Saat joka kuukausi yhden krediitin, jonka voit vaihtaa valitsemaasi äänikirjaan

* Ei sitoumusta, peru milloin tahansa

ILMAINEN

Suositeltu sinulle

The Innovators

How a Group of Hackers, Geniuses, and Geeks Created the Digital Revolution

kirjoittanut Walter Isaacson ...

Following his blockbuster biography of Steve Jobs, Walter Isaacson’s New York Times bestselling and critically acclaimed The Innovators is a “riveting, propulsive, and at times deeply moving” (The Atlantic) story of the people who created the computer and the internet.What were the talents that allowed certain inventors and entrepreneurs to turn their visionary ideas into disruptive realities? ... Lue lisää

19,47 €

Following his blockbuster biography of Steve Jobs, Walter Isaacson’s New York Times bestselling and critically acclaimed The Innovators is a “riveting, propulsive, and at times deeply moving” (The Atlantic) story of the people who created the computer and the internet.What were the talents that allowed certain inventors and entrepreneurs to turn their visionary ideas into disruptive realities?
... Lue lisää
A Mind at Play

How Claude Shannon Invented the Information Age

kirjoittanut Jimmy Soni, Rob Goodman ...

Winner of the Neumann Prize for the History of Mathematics"We owe Claude Shannon a lot, and Soni & Goodman’s book takes a big first step in paying that debt." —San Francisco Review of Books"Soni and Goodman are at their best when they invoke the wonder an idea can instill. They summon the right level of awe while stopping short of hyperbole." —Financial Times"Jimmy Soni and Rob Goodman make... ... Lue lisää

18,33 €

Winner of the Neumann Prize for the History of Mathematics"We owe Claude Shannon a lot, and Soni & Goodman’s book takes a big first step in paying that debt." —San Francisco Review of Books"Soni and Goodman are at their best when they invoke the wonder an idea can instill. They summon the right level of awe while stopping short of hyperbole." —Financial Times"Jimmy Soni and Rob Goodman make...
... Lue lisää
Practical Electronics for Inventors, Fourth Edition

kirjoittanut Paul Scherz, Simon Monk ...

A Fully-Updated, No-Nonsense Guide to ElectronicsAdvance your electronics knowledge and gain the skills necessary to develop and construct your own functioning gadgets. Written by a pair of experienced engineers and dedicated hobbyists, Practical Electronics for Inventors, Fourth Edition, lays out the essentials and provides step-by-step instructions, schematics, and illustrations. Discover how to ... Lue lisää

38,58 €

A Fully-Updated, No-Nonsense Guide to ElectronicsAdvance your electronics knowledge and gain the skills necessary to develop and construct your own functioning gadgets. Written by a pair of experienced engineers and dedicated hobbyists, Practical Electronics for Inventors, Fourth Edition, lays out the essentials and provides step-by-step instructions, schematics, and illustrations. Discover how to
... Lue lisää
Your Face Belongs to Us

The Secretive Startup Dismantling Your Privacy

kirjoittanut Kashmir Hill ...

***AS HEARD ON BBC RADIO 4 BOOK OF THE WEEK*SHORTLISTED FOR THE ROYAL SOCIETY SCIENCE BOOK PRIZE 2024**LONGLISTED FOR THE FINANCIAL TIMES BUSINESS BOOK OF THE YEAR AWARD 2023A NEW STATESMAN BOOK OF THE YEAR'A parable for our times' FINANCIAL TIMES, Best Books of 2023'Gripping' THE TIMES, Best Technology Books of 2023____________________________________... ... Lue lisää

14,94 €

***AS HEARD ON BBC RADIO 4 BOOK OF THE WEEK*SHORTLISTED FOR THE ROYAL SOCIETY SCIENCE BOOK PRIZE 2024**LONGLISTED FOR THE FINANCIAL TIMES BUSINESS BOOK OF THE YEAR AWARD 2023A NEW STATESMAN BOOK OF THE YEAR'A parable for our times' FINANCIAL TIMES, Best Books of 2023'Gripping' THE TIMES, Best Technology Books of 2023____________________________________...
... Lue lisää
Tim Cook

The Genius Who Took Apple to the Next Level

kirjoittanut Leander Kahney ...

In 2011, Tim Cook took on an impossible task - following in the footsteps of one of history's greatest business visionaries, Steve Jobs. Facing worldwide scrutiny, Cook (who was often described as shy, unassuming and unimaginative) defied all expectations. Under Cook's leadership Apple has soared: its stock has nearly tripled to become the world's first trillion-dollar company. From the massive ... Lue lisää

9,49 €

In 2011, Tim Cook took on an impossible task - following in the footsteps of one of history's greatest business visionaries, Steve Jobs. Facing worldwide scrutiny, Cook (who was often described as shy, unassuming and unimaginative) defied all expectations. Under Cook's leadership Apple has soared: its stock has nearly tripled to become the world's first trillion-dollar company. From the massive
... Lue lisää
Apple

The First 50 Years

kirjoittanut David Pogue ...

This book lavishly illustrates the first 50 years of Apple**’**s history through stunning, full-color photographs.Instant New York Times BestsellerIn time for Apple’s 50th anniversary, CBS Sunday Morning correspondent David Pogue tells the iconic company’s entire life story: how it was born, nearly died, was born again under Steve Jobs, and became, under CEO Tim Cook, the most valuable company in ... Lue lisää

22,91 €

This book lavishly illustrates the first 50 years of Apple**’**s history through stunning, full-color photographs.Instant New York Times BestsellerIn time for Apple’s 50th anniversary, CBS Sunday Morning correspondent David Pogue tells the iconic company’s entire life story: how it was born, nearly died, was born again under Steve Jobs, and became, under CEO Tim Cook, the most valuable company in
... Lue lisää
Valley of Genius

The Uncensored History of Silicon Valley (As Told by the Hackers, Founders, and Freaks Who Made It Boom)

kirjoittanut Adam Fisher ...

"This is the most important book on Silicon Valley I've read in two decades. It will take us all back to our roots in the counterculture, and will remind us of the true nature of the innovation process, before we tried to tame it with slogans and buzzwords." -- Po Bronson, #1 New York Times bestselling author of The Nudist on the Late Shift and NurtureshockA candid, colorful, and comprehensive ... Lue lisää

12,99 €

"This is the most important book on Silicon Valley I've read in two decades. It will take us all back to our roots in the counterculture, and will remind us of the true nature of the innovation process, before we tried to tame it with slogans and buzzwords." -- Po Bronson, #1 New York Times bestselling author of The Nudist on the Late Shift and NurtureshockA candid, colorful, and comprehensive
... Lue lisää
Computer Science Principles V11

kirjoittanut Clive W Humphris ...

An enhanced eBook published in full colour. Now including extensive interactive content enabling exploration by inserting any values that would occur in a real situation whereby the graphics are redrawn to reflect those changes.Calculations can be also tested against any standard subject textbook to compare the results.Interactive Technology when used in the classroom can motivate passive students ... Lue lisää

3,38 €

An enhanced eBook published in full colour. Now including extensive interactive content enabling exploration by inserting any values that would occur in a real situation whereby the graphics are redrawn to reflect those changes.Calculations can be also tested against any standard subject textbook to compare the results.Interactive Technology when used in the classroom can motivate passive students
... Lue lisää
VLSI Interview Questions with Answers

kirjoittanut Sam Sony ...

If you can spare half an hour, then we guarantee success at your next VLSI interview. Do you want to secure at least 3 to 4 job offers by succeeding at all the phone and on-site Job interviews for this position? Or you simply want answer to most frequently asked interview questions in digital VLSI design? Did you know that people who made targeted question answer preparation for job ... Lue lisää

9,13 €

If you can spare half an hour, then we guarantee success at your next VLSI interview. Do you want to secure at least 3 to 4 job offers by succeeding at all the phone and on-site Job interviews for this position? Or you simply want answer to most frequently asked interview questions in digital VLSI design? Did you know that people who made targeted question answer preparation for job
... Lue lisää
Two-Stroke Engine Repair and Maintenance

kirjoittanut Paul Dempsey ...

Get Peak Performance from Two-Stroke EnginesDo you spend more time trying to start your weed trimmer than you do enjoying your backyard? With this how-to guide, you can win the battle with the temperamental two-stroke engine.Written by long-time mechanic and bestselling author Paul Dempsey, Two-Stroke Engine Repair & Maintenance shows you how to fix the engines that power garden equipment, ... Lue lisää

20,65 €

Get Peak Performance from Two-Stroke EnginesDo you spend more time trying to start your weed trimmer than you do enjoying your backyard? With this how-to guide, you can win the battle with the temperamental two-stroke engine.Written by long-time mechanic and bestselling author Paul Dempsey, Two-Stroke Engine Repair & Maintenance shows you how to fix the engines that power garden equipment,
... Lue lisää
A Digital Liberia

How Electrons, Information, and Market Forces Will Determine Liberia's Future

kirjoittanut Darren Wilkins ...

In A Digital Liberia, Darren Wilkins, an accomplished ICT Professional with more than twelve years of experience in the field of ICT, describes the impact of information and communications technologies on the future of Liberia. Emerging from a fourteen-year civil war and more than 150 years of underdevelopment, poverty, and illiteracy, Liberia is presently behind the curve with respect to modern ... Lue lisää

9,01 €

In A Digital Liberia, Darren Wilkins, an accomplished ICT Professional with more than twelve years of experience in the field of ICT, describes the impact of information and communications technologies on the future of Liberia. Emerging from a fourteen-year civil war and more than 150 years of underdevelopment, poverty, and illiteracy, Liberia is presently behind the curve with respect to modern
... Lue lisää
Esercizi di Elettronica Digitale

Commentati e svolti

kirjoittanut F. Lodesani, E. Sangiorgi, M. Zagnoni ...

Questo volume si presenta come una guida alla risoluzione di esercizi di Elettronica Digitale. Si tratta di temi proposti alle prove scritte di esame dell'insegnamento di Elettronica L-A (Elettronica Digitale) per i Corsi di Laurea della Classe Ingegneria dell'Informazione della Seconda Facoltà di Ingegneria dell'Università di Bologna, negli anni accademici dal 2002 al 2006 ... Lue lisää

9,99 €

Questo volume si presenta come una guida alla risoluzione di esercizi di Elettronica Digitale. Si tratta di temi proposti alle prove scritte di esame dell'insegnamento di Elettronica L-A (Elettronica Digitale) per i Corsi di Laurea della Classe Ingegneria dell'Informazione della Seconda Facoltà di Ingegneria dell'Università di Bologna, negli anni accademici dal 2002 al 2006
... Lue lisää
Elettronica digitale

kirjoittanut Franco Zappa ...

Il libro tratta in dettaglio molti aspetti dell’elettronica digitale. Gli argomenti spaziano dalla descrizione delle famiglie logiche commerciali, alla rassegna dei componenti commerciali a media scala di integrazione, per poi giungere al progetto di circuiti digitali sia combinatori che sequenziali. Vengono inoltre presentate diverse tipologie di logiche programmabili e diverse classi di memorie ... Lue lisää

21,99 €

Il libro tratta in dettaglio molti aspetti dell’elettronica digitale. Gli argomenti spaziano dalla descrizione delle famiglie logiche commerciali, alla rassegna dei componenti commerciali a media scala di integrazione, per poi giungere al progetto di circuiti digitali sia combinatori che sequenziali. Vengono inoltre presentate diverse tipologie di logiche programmabili e diverse classi di memorie
... Lue lisää
Circuitos Digitales, Prácticas de laboratorio

utilizando NI Multisim

kirjoittanut Jose Luis Ola Garcia ...

Bienvenidos a "Circuitos Digitales, Prácticas de Laboratorio utilizando NI Multisim™ ”. Estudiaras y aprenderás desde la Teoría a la Práctica, todas las prácticas de Laboratorio, los ejemplos y problemas propuestos han sido desarrollados y comprobadas con NI myDAQ y simuladas con NI Multisim™, lo que te asegura ejemplos 100% funcionales.Cada capítulo se despliega en una progresión lógica, ... Lue lisää

29,75 € tai ilmainen Kobo Plus -tilauksella

Bienvenidos a "Circuitos Digitales, Prácticas de Laboratorio utilizando NI Multisim™ ”. Estudiaras y aprenderás desde la Teoría a la Práctica, todas las prácticas de Laboratorio, los ejemplos y problemas propuestos han sido desarrollados y comprobadas con NI myDAQ y simuladas con NI Multisim™, lo que te asegura ejemplos 100% funcionales.Cada capítulo se despliega en una progresión lógica,
... Lue lisää
Getting Started with Adafruit FLORA

Making Wearables with an Arduino-Compatible Electronics Platform

kirjoittanut Becky Stern, Tyler Cooper ...

This book introduces readers to building wearable electronics projects using Adafruit's tiny FLORA board: at 4.4 grams, and only 1.75 inches in diameter, and featuring Arduino compatibility, it's the most beginner-friendly way to create wearable projects. This book shows you how to plan your wearable circuits, sew with electronics, and write programs that run on the FLORA to control the ... Lue lisää

10,70 €

This book introduces readers to building wearable electronics projects using Adafruit's tiny FLORA board: at 4.4 grams, and only 1.75 inches in diameter, and featuring Arduino compatibility, it's the most beginner-friendly way to create wearable projects. This book shows you how to plan your wearable circuits, sew with electronics, and write programs that run on the FLORA to control the
... Lue lisää
La prova digitale nel processo penale

kirjoittanut Roberto De Vita, Valentina Guerrisi, Antonio Laudisa, Marco Della Bruna, Giovanni Russo, Stefano Elli ...

Il tema della prova digitale e della sua universale pervasività costituisce l’attuale più grande complessità per il processo penale, che mette in crisi il rapporto tra dibattimento e contraddittorio nella formazione della prova.La digital evidence rappresenta il risultato la cui “accettabilità” non è legata al fine, ma risiede unicamente nel metodo, quello della digital forensics. Un processo di ... Lue lisää

19,95 €

Il tema della prova digitale e della sua universale pervasività costituisce l’attuale più grande complessità per il processo penale, che mette in crisi il rapporto tra dibattimento e contraddittorio nella formazione della prova.La digital evidence rappresenta il risultato la cui “accettabilità” non è legata al fine, ma risiede unicamente nel metodo, quello della digital forensics. Un processo di
... Lue lisää
Amazon Tap User Guide: Newbie to Expert in 1 Hour!

kirjoittanut Tom Edwards ...

Here it is - The Amazon Tap User Manual that should have come in the box!From the Number 1 Best Selling authors in Computers and Technology, this clear and concise guide will show you how to get the very best from your new Amazon Tap. Step by step instructions will take you from newbie to expert in just one hour!About the Authors:Tom and Jenna Edwards are the Amazon Tech authors behind the Number ... Lue lisää

2,99 € tai ilmainen Kobo Plus -tilauksella

Here it is - The Amazon Tap User Manual that should have come in the box!From the Number 1 Best Selling authors in Computers and Technology, this clear and concise guide will show you how to get the very best from your new Amazon Tap. Step by step instructions will take you from newbie to expert in just one hour!About the Authors:Tom and Jenna Edwards are the Amazon Tech authors behind the Number
... Lue lisää
A Arte do Networking Consciente: Construindo Conexões Genuínas na Era Digital

my digital buddy

kirjoittanut tanaba ...

Sarja sarja my digital buddy
"A Arte do Networking Consciente: Construindo Conexões Genuínas na Era Digital" é um guia abrangente que navega a evolução do networking na era digital. Desde superar obstáculos comuns até medir o sucesso no networking, este e-book fornece aos leitores estratégias práticas para cultivar conexões significantes, seja para crescimento pessoal ou avanço profissional. O livro enfatiza a importância da ... Lue lisää

4,99 € tai ilmainen Kobo Plus -tilauksella

"A Arte do Networking Consciente: Construindo Conexões Genuínas na Era Digital" é um guia abrangente que navega a evolução do networking na era digital. Desde superar obstáculos comuns até medir o sucesso no networking, este e-book fornece aos leitores estratégias práticas para cultivar conexões significantes, seja para crescimento pessoal ou avanço profissional. O livro enfatiza a importância da
... Lue lisää
Intelligenza artificiale e lavoro, una rivoluzione governabile

kirjoittanut Federico Butera, Giorgio De Michelis ...

Questo breve libro contiene due capitoli su un tema molto discusso che suscita sia visioni distopiche che previsioni ottimistiche: che impatto avrà l’Intelligenza Artificiale sulla quantità e qualità del lavoro. Federico Butera, in linea con le recenti ricerche del MIT, vede e descrive due intelligenze artificiali alternative: una buona e una cattiva. Come e dove progettare insieme organizzazione, ... Lue lisää

7,99 €

Questo breve libro contiene due capitoli su un tema molto discusso che suscita sia visioni distopiche che previsioni ottimistiche: che impatto avrà l’Intelligenza Artificiale sulla quantità e qualità del lavoro. Federico Butera, in linea con le recenti ricerche del MIT, vede e descrive due intelligenze artificiali alternative: una buona e una cattiva. Come e dove progettare insieme organizzazione,
... Lue lisää
Sociedade virtual

o metaverso e as novas fronteiras da experiência humana

kirjoittanut Herman Narula ...

Käännös: Ana Flávia Spindola ...

O conceito de metaverso ganhou destaque na consciência pública, mas seus contornos ainda são imprecisos. Como mostra o pioneiro especialista em tecnologia Herman Narula, o metaverso é a mais recente manifestação de uma antiga tendência humana: o ato de construir mundos. Desde os egípcios, cujo conceito de morte inspirou a construção das pirâmides, até os atuais fãs de esportes, cuja paixão por um ... Lue lisää

8,99 €

O conceito de metaverso ganhou destaque na consciência pública, mas seus contornos ainda são imprecisos. Como mostra o pioneiro especialista em tecnologia Herman Narula, o metaverso é a mais recente manifestação de uma antiga tendência humana: o ato de construir mundos. Desde os egípcios, cujo conceito de morte inspirou a construção das pirâmides, até os atuais fãs de esportes, cuja paixão por um
... Lue lisää
How to make money from your phone in 2026

A Complete Beginner's Guide for Students and Young People

kirjoittanut David Berry ...

Are you a student or young person looking to earn real money using nothing but your smartphone? This practical, no-fluff guide shows you exactly how to start making money online in 2026 — even with zero experience, zero capital, and zero connections.Written specifically for beginners in Africa, Asia, and developing countries, this step-by-step guide covers the most reliable and fastest methods ... Lue lisää

5,99 €

Are you a student or young person looking to earn real money using nothing but your smartphone? This practical, no-fluff guide shows you exactly how to start making money online in 2026 — even with zero experience, zero capital, and zero connections.Written specifically for beginners in Africa, Asia, and developing countries, this step-by-step guide covers the most reliable and fastest methods
... Lue lisää
Barbari & digitali

Cronache dal fronte di una guerra in corso

kirjoittanut Giampiero Beltotto ...

Tra vita vissuta e cronaca sociale, un appello a non smarrire la propria umanità, esercitando la memoria personale e collettiva. Viviamo immersi in un «tutto digitale». Qualsiasi cosa sembra alla portata di chiunque: il mondo ci offre la facilità come segno distintivo del consumo digitale. Ma siamo ancora in grado di spiegarci le trasformazioni che stiamo vivendo? Possediamo una memoria capace di ... Lue lisää

9,99 €

Tra vita vissuta e cronaca sociale, un appello a non smarrire la propria umanità, esercitando la memoria personale e collettiva. Viviamo immersi in un «tutto digitale». Qualsiasi cosa sembra alla portata di chiunque: il mondo ci offre la facilità come segno distintivo del consumo digitale. Ma siamo ancora in grado di spiegarci le trasformazioni che stiamo vivendo? Possediamo una memoria capace di
... Lue lisää
Electronics

kirjoittanut Ian Sinclair ...

Sarja sarja Collins Dictionary of
The ebook edition of the essential guide to the science and technology of electronics. Illustrations are best viewed on a tablet.This dictionary is directed to the requirements of all who need a source book providing clear, helpful definitions of electronic terms, including advanced school students and those embarking on higher-education courses, as well as technicians and hobbyists. The ... Lue lisää

12,36 €

The ebook edition of the essential guide to the science and technology of electronics. Illustrations are best viewed on a tablet.This dictionary is directed to the requirements of all who need a source book providing clear, helpful definitions of electronic terms, including advanced school students and those embarking on higher-education courses, as well as technicians and hobbyists. The
... Lue lisää
A YouTube Stone

kirjoittanut ZhanXG ...

This book is a guidebook, a guide to YouTube. Here, it will help you step by step in starting a YouTube channel and the strategies for making your way to success. Unlike many books in the world, this would be the first complete guide on YouTube, everything in one. Like earning money, SEO strategies, algorithm hacking (legal way), and instructions on every content. This book is not entirely from ... Lue lisää

3,53 €

This book is a guidebook, a guide to YouTube. Here, it will help you step by step in starting a YouTube channel and the strategies for making your way to success. Unlike many books in the world, this would be the first complete guide on YouTube, everything in one. Like earning money, SEO strategies, algorithm hacking (legal way), and instructions on every content. This book is not entirely from
... Lue lisää

Kobo Rakuten

eReader-laitteet

Sovellukset

Lisätarvikkeet

Ostoskori

Saat VIP-jäsenen kohtelua!

Ostoskorisi on tyhjä

Saatavilla:

1 äänikirja joka kuukausi

+ ILMAINEN 30 päivän kokeilu

Saatavilla:

1 äänikirja joka kuukausi

+ ILMAINEN 30 päivän kokeilu

Suositeltu sinulle

Digitaalinen e-kirjat

The Innovators

A Mind at Play

Practical Electronics for Inventors, Fourth Edition

Your Face Belongs to Us

Tim Cook

Apple

Valley of Genius

Computer Science Principles V11

VLSI Interview Questions with Answers

Two-Stroke Engine Repair and Maintenance

A Digital Liberia

Esercizi di Elettronica Digitale

Elettronica digitale

Circuitos Digitales, Prácticas de laboratorio

Getting Started with Adafruit FLORA

La prova digitale nel processo penale

Amazon Tap User Guide: Newbie to Expert in 1 Hour!

A Arte do Networking Consciente: Construindo Conexões Genuínas na Era Digital

Intelligenza artificiale e lavoro, una rivoluzione governabile

Sociedade virtual

How to make money from your phone in 2026

Barbari & digitali

Electronics

A YouTube Stone