They suspect it does the same in humans and plan to test that next. Often, minor glitches can be resolved by rebooting the system. Good morning everyone, I saw that a new version of fyde os has been released, my laptop is stuck at version 16, I went to the fyde os settings but it says that I have the latest version and it won’t let me update. 42 (29-Nov-2011) Join our official Telegram group and start asking! FydeOS offers a choice for regular PCs to behave like Chromebooks with alternative supporting services, on-premise or in the cloud, with or without Google. That failed to get past repair as well, but it actually began the repair, and on the other it rebooted almost immediately after the repair screen appeared. Log Details: can’t open The SSD plugs into a socket. Downloaded from https://cros-updates-serving. The physical and molecular mechanisms by which a cell can heal membrane ruptures and rebuild damaged or missing cellular Nov 12, 2020 · GPU: Intel HD Graphics 620. Trên đây là cách sửa lỗi Your System Is Repairing Itself trên Chromebook , hãy đợi trong 20 phút và kiểm tra xem sự cố có biến mất không. Fydeos 17 apu USB boot Hangs on logo screen then black screen no boot 16 and 16. Most of the time it shows Chrome's "Aww, snap!" message, but it also reloads Chrome OS launcher with notification "Your computer restarted unexpectedly" or reboots completely and goes back to login screen. Run System Repair Tools (Chkdsk, SFC) 3. com It worked fine for a month or so but now it seems to show this screen for 5 minutes and it just restarts! Can't identify many posts on this message. 1. FydeOS 是燧炻创新基于驱动 Chrome OS 及谷歌浏览器的开源项目二次开发的操作系统产品 Apr 23, 2019 · Having Windows repair itself is a process that uses the install files of the operating system itself. to open the Runcommand box. Thanks in advance. For linux, it returns 🙂 Fail to download the Virtual machine. Boot FydeOS from a USB Drive. This will switch the system to TTY command line mode. Is anyone faced this issue, is there any solutions for this. Open "Android" in the Launcher and confirm to start the Android environment after agreeing to the relevant agreement. August 8, 2023. img” on my laptop in “dual boot mode” with the checkbox on “Install rEFInd”, but after installation which completed successfully, when I try to boot from FydeOS, a white screen FydeOS offers a choice for regular PCs to behave like Chromebooks with alternative supporting services, on-premise or in the cloud, with or without Google. Release the Refresh button when your laptop starts up. Repair: During this important phase, a cell called a macrophage is introduced into the injured site. Take a screenshot or record your screen. Join our official Telegram group and start asking! FydeOS offers a choice for regular PCs to behave like Chromebooks with alternative supporting services, on-premise or in the cloud, with or without Google. io. RAM：4G. 1198) Space Disk for FydeOS: 50 Gb. Steps to Check for Corrupt System Files: * Open Command Prompt as an administrator. Update your packages. FydeOS offers a choice for regular PCs to behave like Chromebooks with alternative supporting services, on-premise or in the cloud, with or without Google. If you do not have a Restore Point, go to Troubleshoot - Advanced Option - Startup Settings and click Restart. Key to the study was the discovery of the role played by macrophages, specialist cells that can destroy bacteria or Mar 13, 2024 · Step 2: Access the Terminal. Processor:Intel Core i5-3320M; Graphics Card(Please specify if there’s a discrete graphics card): Intel HD Graphics 4000, integrated GPU. I’m running FydeOS v17. A hard reboot is a way of restarting your computer manually instead of using the operating system controls (soft reboot). Apr 22, 2024 · Press Win + R. it seems like the system made a factory reset when i swapped hdd. If your system update won’t download, try the steps below. You can use your mouse or the arrow keys on your keyboard: Mouse —Press Ctrl on your keyboard and left-click EFI Boot or ChromeOS Flex. Jun 7, 2022 · Next, per your suggestion, I created a local FydeOS account and logged in. Hardware & System Configuration: . Apr 25, 2021 · Boot into Safe Mode. CPU：CPU：Intel Atom Z3795. This can make it hard for you to think July 12, 2023. Mar 1, 2021 · I am using a ThinkPad E580. Press Windows + X and select Windows Terminal (Admin). In Step A > Troubleshoot > Reset this PC - Keep my files and Remove everything. OR 2. Enter sudo -i to get root permissions. Any advice on how to proceed, to fix the issue, would be most appreciated. Their findings provide new insights on how this tissue, which undergoes change on a daily basis, maintains itself. You’ll find your Acer model number under Device Specifications. Jun 18, 2010 · Environment – getting fresh air, pure water, and appropriate sunshine, and avoiding environmental stressors such as air and water pollution, and excess exposure to dust, pollen, chemicals, and noise; Activity – engaging in regular aerobic exercise and getting adequate rest and sleep; and. 1 works good. Specs : Sony VAIO VGN-Z21MN Intel Core 2 Duo 4 GB RAM Fix 1: Update your Operating System. One time Chrome OS displayed message "Your system is repairing itself. Dec 13, 2015 · In the Windows recovery environment, on the " Choose an option " screen, click. Many organisms and tissues display the ability to heal and regenerate as needed for normal physiology and as a result of pathogenesis. Un-plug and re-plug it a few times and then put it back together. c. 在右下角，依次选择时间 FydeOS offers a choice for regular PCs to behave like Chromebooks with alternative supporting services, on-premise or in the cloud, with or without Google. Each time it fails. The welcome screen for FydeOS is bundled with built-in virus protection and encryption by default, keeping your data safe. How do I fix that problem ? 💻System & Device Information Hardware & System Configuration: Processor: Intel i5 Graphics Jun 14, 2024 · Choose the variant of FydeOS for PC based on your device information. Oct 27, 2023 · Too quick to claim victory, crostini is again disabled after reboot, machine say repairing itself, then have to reenter all details, after that when trying to download again the linux virtual machine & container it says update FydeOS, when I look to update it says you have the latest version, this is clearly a bug they need to repair. Initiation of DNA interstrand cross-link repair in humans: the nucleotide excision repair system makes dual incisions 5′ to the cross-linked base and removes a 22- to 28-nucleotide-long damage-free strand. " Jun 22, 2000 · Unlike tissues such as skin and liver, the adult brain has long been thought to have little capacity for self-repair. f) Follow the on screen instructions. July 13, 2024. If you didn't see it the first time, you either walked away for 5 mins and missed it, or are forgetting. Specs : Sony VAIO VGN-Z21MN Intel Core 2 Duo 4 GB RAM Aug 2, 2023 · Fyde os does not update to version 17 - Support & help - FydeOS Community. I have created a local account to test the performance which was great. I thought there might be an issue in booting from USB so I duplicated the drive to the HDD using a Ubuntu livecd, and it's still the same. Device: Fujitsu Lifebook A572/E. Edit: For posterity, solution was to do Jun 9, 2017 · Abstract. Use a stylus with your FydeOS device. Apr 8, 2023 · A new study examines the regenerative potential of the human brain in aging and neurological diseases, which could provide an alternative to conventional strategies for enhancing or restoring brain function. 2. Jun 13, 2024 · fydeos用一段时间之后某一次开机后在输入密码解锁的界面就会闪屏，屏幕大概1~2秒就会黑一次，并且每次重新亮起都发现整个页面重载了，输入一半的密码也清空了，完全进不去系统，也做不到反馈日志，这几天也没找到任何的解决方案，甚至都不知道该怎么 Dec 31, 2020 · 1. If needed, press Ctrl + Alt + F1 (or Fn + Ctrl + Alt + F1) to return to the graphical interface. # Learn about CPU and memory tests. Press Ctrl and Enter. 44 GHz, 2 MB cache, 4 cores) Memory, standard : 2 GB DDR3L SDRAM (onboard) Harddive : 64 GB eMMC FydeOS for PC : 72. One such message that Chromebook users may come across is, Your System is Repairing Itself, Please Wait. io, the associated service offerings will be administered by our UK-based legal entity. Carrie_Gu (Carrie) 2022 年5 月 28 日 10:31 2. Recent single-cell transcriptomic studies in the adult human hippocampus yielded conflicting results, and the researchers found that the design, analysis, and interpretation of these Alternatively, you can find your model number using your Settings app in Windows. In the command prompt, type the following commands one by one and press Enter after each command. I also tried to follow the tutoriels foud on fydeos. Feb 17, 2024 · System & Device Information. Try physical therapy. However, these repair activities can also be observed at the single-cell level. Your data will also be stored and processed in the UK and some other selected data centres in the EU. Apr 9, 2013 · A few days ago I imaged Chromium to a flash drive so I could try it on my old notebook. Safe Mode is a diagnostic tool, but it may be trying to load this basic Windows version that fixes your startup error, and the repair loop will no longer trigger. Jan 20, 2019 · See if Windows startup can repair itself. "ChromeOS is repairing itself" is what happens whenever any of the ChromeOS partitions are resized, and is expected as part of the first stage of chrx installation. 4. I used the "rammus" image version 87. Ultimately, their hope is to use BMP4 as a drug. 1 for Surface Pro 7 on an external drive, I’ve flashed it 3 times now without any success. In mice, the molecule helps the thymus repair itself after an injury, such as radiation exposure, the researchers found. * The System File Checker will scan your system for corrupt files and repair them. Please describe the problem you’ve encountered in detail: Description: Got stucked on the bios try rebooting nothing helped. Jun 12, 2024 · Is there a way to fix installing the Android Subsystem in FydeOS in LiveOS from USB? I tried to install Android in FydeOS in LiveOS from USB, but the “Launch” button stays stuck with the spinner. The nervous system receives and relays sensory information like vision, sound, smell, taste, touch and pain. So, one more time for the players in the back! For Windows: Press the Windows Start button in the corner of your screen; Click the Settings gear icon; Click into Updates & Security Feb 3, 2022 · Your System Is Repairing Itself. Alter Sleep Mode: Input the number 0 to change the sleep Feb 26, 2019 · 1. 487. 硬件型号：惠普1000g2. This article discusses the causes of the ‘your system is repairing itself, please wait’ issue and a few ways to help you fix it. Your device may run slowly, and tests may take a long time to run. If not, replacement SSD's are inexpensive. Over time, they often develop connection problems. Execute /usr/sbin/crossystem_mode-switch. Their connections, called synapses, reach all areas of the body. 1997; 17 (12):6822–6830. Linux. Follow the prompts and let the troubleshooter complete the process. But I didn’t find a way to fix that. [PMC free article] [Google Scholar] Mar 30, 2024 · Hi everyone, I have installed Fydeos 18. Disconnect or Remove Recently Installed or Connected Devices. 3626. 💻System & Device Information RPI400 4GB in french FydeOS offers a choice for regular PCs to behave like Chromebooks with alternative supporting services, on-premise or in the cloud, with or without Google. With the local account, I was able to activate the android subsystem (via popup), and install Open Gapps from the FydeOS Web Store and configure it. Carrie_Gu (Carrie) 2024 年3 月 18 日 05:03 2. Then press and hold the Refresh and Power buttons. The nervous system is a complex and wide-reaching network of nerve cells called neurons. d) Click Troubleshoot. A macrophage “eats” and “cleans away” the dead tissue and dry blood caused by the injury. Clear search Feb 18, 2024 · 📌Question Description Have you searched the community for related issues? [ yes] No similar issues found. Use your FydeOS device touchpad. Run the Windows 10 DISM tool. Đặt lại phần cứng Chromebook của bạn và kiểm tra xem bạn có nhận thấy bất kỳ cải tiến nào không. Sometimes it’s super snappy, other times it takes literally 2 minutes to open the calculator. Go to Troubleshoot - Advanced Option - System Restore. Select a relevant troubleshooter based on your problem by selecting the Run button next to it. Upon restart, press 4 to enter Safe Mode. troubleshooting. Hardware & System Configuration: Processor: Intel Core i3-1115G4 11th gen; Graphics Card: RAM:8 GB; FydeOS Version: v17. Gallium system on 64GB Sandisk USB. Type shell and hit Enter to access the shell environment. Check to see if you have a restore point you can go back to. Android settings and play store didnt open. C. Regards, hmh Acer C720 PEPPY C3A-R3E-A74 Dual boot: ChromeOS and GalliumOS installed following the guide here. Main OS: Windows 10 (Version 10. Hope the above information was helpful. Two commands worth trying to get you out of the automatic repair loop are Fixboot and Chkdsk. Apr 9, 2019 · Hardware name : HP Pavilion x2 - 10-n126tu Microprocessor : intel® Atom™ Z8300 with Intel® HD Graphics (1. The memory test measures system memory. * Clobber log* 2013/04/10 01:23:28 UTC (repair): /dev/sdb1 Self-repair corrupted stateful partition dumpe2fs 1. Official Language In the FydeOS Community, all communication must be conducted in English for inclusivity and mutu…. Mar 13, 2024 · If your hwtuner version is up-to-date, you can proceed to modify the system sleep mode as follows: Navigate to the device and driver tuning menu: Look for Misc devices and driver tuning. Check that your virtual machine is up-to-date. c) Click Advanced Options. Apr 29, 2022 · 3984. Copy link ksoham622 commented Feb 5, 2022 • Bessho T, Mu D, Sancar A. Apr 24, 2024 · Please wait” message, the first step is to wait simply. amd64-fydeos_iris. Open Settings, go to System, then click on About. Beginning from FydeOS v17 and effective 1st August 2023, if you download any FydeOS image or use any FydeOS service from https://fydeos. We are pleased to announce that we have a FydeOS Discord Server that we would like to invite you FydeOS offers a choice for regular PCs to behave like Chromebooks with alternative supporting services, on-premise or in the cloud, with or without Google. 1 SHA-256: 614…. sh disable-rootfs-verification to turn off root file system verification. Nếu sự cố vẫn tiếp diễn, hãy khôi FydeOS offers a choice for regular PCs to behave like Chromebooks with alternative supporting services, on-premise or in the cloud, with or without Google. FydeOS版本：17. Maintaining a Healthy Windows 10 Installation. That may solve the problem. FydeOS 愿意倾听你诉说的一切，更愿为你把守所有的秘密，因为它深知知己是多么的难得。. After the reboot, the Google Play Store icon automatically appeared on task bar. 这种情况一般需要重新烧写 U 盘，一定不要动烧写完成后的分区，还是不行的话，可能需要 Jan 12, 2018 · Called BMP4, the molecule is produced by cells that line the blood vessels coursing through the thymus. 1. You’ll see all built-in troubleshooters listed here. Mol Cell Biol. It’s ready whenever you are. 高峰搜索测试 会检查复杂素数的 CPU 计算结果。. Please describe the problem you’ve encountered in detail: Description: Google Play Store is telling me that my device is not play protected certified. Mar 14, 2022 · Neurosurgery. 24. If you have trouble with your phone or FydeOS device's mobile data to update your system, disconnect from the phone or mobile data. world/c/pop_os) FydeOS is bundled with built-in virus protection and encryption by default, keeping your data safe. hardware. Utilise tools in This help content & information General Help Center experience. amd64-fydeos. Historical Releases of FydeOS for PC. [5] Some insurance companies will not cover PT. About the Support & help category. bootrec /fixmbr. If you’re still having issues, follow the steps below to clear logic board RAM. Simple. Startup Repair - Startup Repair upgrade fixes all Windows errors and retains all files, applications and settings. Mar 10, 2023 · Signs your liver is healing include: Reduced brain fog: When your liver isn’t functioning as it should, it can create a backup of toxins in your system. In the Run dialog box, type rstrui and hit Enterto launch the System RestoreWizard. Set up & manage multiple desktops with desks. Step 1. Chrome OS is designed to resolve many issues automatically. but all data is still there. FydeOS comes with minimalist design throughout with intuitive user interface that looks familiar. # Fix problems with Linux. Test your FydeOS after each step to see if the problem is fixed. The ‘Developer M…. Run the Fixboot and Chkdsk commands. 你可以使用「诊断」应用来检查 FydeOS 上是否存在硬件问题，例如电池、CPU 和内存方面的问题。. The nervous system is fragile. 3. Aug 17, 2023 · this is the first time i use FydeOS, i found a tutorial on youtube to install the OS when i want to open the google play to start installing application there’s a notification from google play services that says " This device isn’t Play Protect certified Google apps and services can’t run on this device" and when i continue to sign in to google play, it says This device isn’t Play Multitask with windows & tabs. 18363. to load FydeOS onto your portable storage device and use it to initiate the system boot. Navigate your settings in FydeOS. bootrec /fixboot. 1-stable. If a nerve was pinched, rather than severed, physical therapy (PT) is often used to repair the damage and increase strength and mobility. Note: Intel may use multiple codenames for their processors during different periods, and these may Starting with FydeOS v18, significant changes have been made to the way we distribute the FydeOS image. More choices, greater possibilities. Once the FydeOS graphical interface appears, press Ctrl + Alt + F2 on your keyboard. Examples of Acer model numbers are Nitro 5 AN515-58-73RS, Predator Helios 18 PH18-72-90C9, and Aspire Vero AV14-51-59UW. How to Solve Common Installation Issues: Switch from MBR to GPT: FydeOS necessitates your disk being formatted to GPT. On the System Restore window, click Next. Based on your exceptional curiosity, we sense you have a lot of it. If you need further information, feel free to write to us and we would be happy to help you. Disable Automatic Startup Repair to Limit Boot Loops. This variant works best on older (circa 2011-2017) Intel Core, Pentium, and Celeron series processors. " Troubleshoot ". (You can also find us on https://lemmy. Oct 23, 2023 · Too quick to claim victory, crostini is again disabled after reboot, machine say repairing itself, then have to reenter all details, after that when trying to download again the linux virtual machine & container it says update FydeOS, when I look to update it says you have the latest version, this is clearly a bug they need to repair. 直接卡死，无反应。. The repair process may take some time, especially if there are numerous files and settings to examine and correct. Mar 12, 2024 · Anyone know what I could do to fix this? Signing into a Fyde account vs Google per this thread didn’t make a difference. The system then rebooted. Feb 6, 2024 · Be aware of your use of these medications. Open the Terminal app, and then run this command: sudo apt-get update && sudo apt-get dist-upgrade; Tip: You might need to restart FydeOS for changes to take May 28, 2022 · 求助答疑. 3rd - 7th generation Intel Core Processors Intel Celeron Processors with HD Graphics: FydeOS for PC v17. For some computers, like Apple Mac, you may need to press Fn + Ctrl + Alt + F2. Log Details: can’t open May 9, 2024 · When the computer doesn't respond with a black screen, warning "Preparing Automatic Repair", perform a hard reboot first. Download Android App. The CPU chart is a graph where blue represents your CPU usage, and yellow represents the system usage. If there is no "FydeOS Web Store" in the version you are using, you can also download and install it through a third-party Android Apr 10, 2022 · Sometimes once in a day, sometimes every 5 minutes. But new results indicate that, after cells in the cortex are damaged Due to the wide variety of device hardware, installing FydeOS can occasionally present challenges. e) Click Automatic Repair. Search. Here are the detailed instructions: Press Control + Alt + T on your FydeOS desktop to open the terminal. Use FydeOS keyboard. . Feb 15, 2022 · Start by pressing Win + I and navigate to System > Troubleshoot > Other troubleshooters. Your new partition for FydeOS is now ready. Turn off your FydeOS device, then turn it back on. Today i tried to plug the same HDD to another laptop (ACER) But when booted i encountered the welcome screen. # 1. Change how your mouse works. Apr 17, 2023 · Beginning from FydeOS v17 and effective 1st August 2023, if you download any FydeOS image or use any FydeOS service from https://fydeos. liao1 (liao) 2022 年5 月 28 日 09:29 1. FydeOS boots up in seconds from cold, even with entry-grade hardware. If you use Linux, you should not need additional instructions: p # 2. This guide aims to simplify these challenges with straightforward solutions. Jul 14, 2017 · Researchers at Harvard Stem Cell Institute, Dana-Farber Cancer Institute, and Harvard Medical School have identified a previously unknown mechanism that plays an important role in the regeneration of the inner intestinal lining. Simple FydeOS comes with minimalist design throughout with intuitive user interface that looks familiar. 打开「诊断」工具1. I really don’t want to overwrite my C drive until I can at least try out some apps. I am trying to install FydeOS “FydeOS_PC_v11. Jun 28, 2020 · Running a system file check can identify and repair these issues. Please Wait. Feb 4, 2022. Keyboard —Use the arrow on the keyboard to select EFI Boot or ChromeOS Flex. Any help would be # Fix problems with updates. 它将隐私保护根植于心，以此作为应对哪怕是最微不足道的小事也要守护的底线。. 3. # Memory. 显卡：Intel HD Graphics. amd64-fydeos_apu. By now you’ve — uh — probably seen in reviewing this article that updating your OS is a common, go-to fix for a lot of issues. Press it, unplug the power cable and then remove the battery. Swift. Check if your doctor will prescribe physical therapy. FydeOS is bundled with built-in virus protection and encryption by default, keeping your data safe. Click " Advanced options " and then click " Command prompt ". Penultimate option could be Reset this PC. 存储容量：32G. 3; Relevant System Logs: Open the Chromium browser and enter /var/log/messages to retrieve logs. Unleash your potential on secure, reliable open source software. 64 (FydeOS unlicensed version) (64 บิต) Found problems : Once the operating system is installed The machine works well, no problems, except without sound Feb 8, 2024 · System & Device Information. 💻System Join our official Telegram group and start asking! FydeOS offers a choice for regular PCs to behave like Chromebooks with alternative supporting services, on-premise or in the cloud, with or without Google. 几秒后重启进入winodws. Before you go forward with any repairs, you’ll want to make sure to back up your important Dec 9, 2023 · 📌Question Description Previously it was working but I did a powerwash and since that, I can’t install Gapps and activate linux. Oct 21, 2015 · b) Follow the instructions till the Install Now screen and then Click Repair your computer. Jun 11, 2024 · Is there a way to fix installing the Android Subsystem in FydeOS in LiveOS from USB? I tried to install Android in FydeOS in LiveOS from USB, but the “Launch” button stays stuck with the spinner. System Restore - This will restore your system to a point when things were working fine. I also tried a guest account. Keeping your operating system updated can Jan 20, 2024 · System & Device Information. Step 1: Restart Your Chromebook The first and simplest step is to restart your Chromebook. 处理器*：J1900. d. Psychology – engaging in productive activity and This help content & information General Help Center experience. Open "FydeOS Web Store" to search and download the Android app you need. * Type sfc /scannow and press Enter. Pop!_OS is an operating system for STEM and creative professionals who use their computer as a tool to discover and create. Press and hold the power button on the computer until it shuts down. 0 on Asus laptop a week ago. Pierluigi (Pierluigi) August 2, 2023, 3:33pm 1. Sep 15, 2023 · However, like any other electronic device, they can sometimes encounter issues that can be confusing. Thank You. No similar issues found. 17065. appspot. 这款设备有人在社区反馈过 v12. Select the menu item: Input the number 4. one. Allow at least 10 to 20 minutes before concluding the process has stuck. Follow the steps outlined in . Sep 28, 2023 · 📌Question Description I’ve noticed that the android subsystem is almost unusable on my installation of FydeOS: it is painfully slow but not in a coherent way. One time I was using gmail and the app froze completely and with it all the android applications: they could be launched but then not a Mar 27, 2017 · Application of RICE (Rest, ice, compression, elevation) can also decrease the detrimental effects of the destruction phase. 进入引导后显示Your system Is repairing itself,Please wait. Remove the back and the screw holding in the SSD. Step 2: Update Chrome OS Ensure that your Chrome OS is up to date by checking for pending updates. May 5, 2024. At the next screen, check Once the process is complete, click "Done". It did boot, but it only went as far as the "Your system is repairing itself" screen and restarted. 在关于 FydeOS 下，你可以找到当前使用的 FydeOS 版本。 选择检查是否有更新。 如果 FydeOS 设备发现有系统更新，便会自动开始下载。 注意：如果 FydeOS 设备使用的是手机的互联网连接或它自己的移动数据，系统会向你发送提醒，让你知道更新需要使用多少移动 Aug 25, 2021 · First, shut down your Chromebook. Find the Sleep Mode Switch: Look for Switch suspend mode. May 30, 2022 · New research has revealed that the immune response of the body and the lymphatic system (part of the immune system) are crucial in the way that the heart repairs itself after a heart attack has caused damage to the heart muscle. 0. Installation date 20/12/2018 Mar 17, 2024 · 问题描述安装时提示： your system is repairing itself please wait. 2 可以启动 浮点准确率测试 会针对预设值反复执行浮点运算，以检查准确率。. Clear search May 31, 2024 · The google play store says that there is an issue with security. If you experience issues with Linux or Linux apps, try the following steps: Restart FydeOS. Support & help. Thanks indeed for the assistance. Note: Some Chromebook models feature a special reset button. My boot option is UEFI with Legacy OPROM, secure boot is OFF. Jul 27, 2023 · Troubleshooting Steps – How to Fix Chromebook. Important: CPU tests can stress the device and make regular use difficult. nf dd cz is le tq lp yi lh xj