topic: Kimiyya

Meghalai karni - sunan hukuma na karni na 21

Hukumar Kula da Dabaru ta Duniya ta yanke shawara gaba ɗaya kuma ta amince da sunan lokacin da muke rayuwa a ciki. Lokacin da ya fara shekaru 4200 da suka gabata, kuma yana ci gaba har yau, ana kiransa zamanin Meghalaya. Ana samun ma'anar akan gidan yanar gizon hukuma na ƙungiyar. An kafa tarihin tarihin duniya bisa ma'auni na geochronological. Ma'auni yana dogara ne akan dabarun zane. Wanene bai bayyana ba - a kan sauyawar yadudduka na duwatsu. Bari sharuddan su haifar da rudani a tsakanin waɗanda ba a sani ba (kuma wannan shine 99,9% na yawan al'ummar duniya), amma a tsakanin masana kimiyya duk abin da yake ma'ana da dabi'a. Zamanin Meghalaya Idan muka zurfafa cikin tarihi, ɗan adam yana rayuwa a zamanin Holocene. Daidai daidai, a cikin zamanin Cenozoic na zamanin Quaternary. Ku... Kara karantawa

Ta yaya kisan gilla a cikin tsohuwar Misira: bincike

A Masar, masana kimiyya sun gano sirrin yin mummy. Aƙalla, masu binciken, a lokacin haƙa na gaba na ma'adinai na mita 30, sun sami nasarar samun taron bita. An sami sarcophagi na katako da dutse a cikin bitar. Ya rage ga masana su gano yadda ake yin mummy a tsohuwar Masar. Mai yiyuwa ne wasu kayan tarihi za su bayyana a gwanjon a nan gaba. A cewar masana kimiyya, taron bitar mummy yana da shekaru dubu biyu da rabi. Taron bitar yana cikin necropolis kusa da tsohuwar Memphis, a yankin Saqqara. Baya ga shagon, masu binciken sun gano wani babban kabari. Ana kyautata zaton cewa gano wani kabari ne da Farisa suka binne sojojinsu. Hakika, a cikin 664-404 BC, Farisawa ne suka yi mulkin Masar. Yaya aka yi mummy... Kara karantawa

Husufin rana: Juma'a 13 - kwanan wata mai ban tsoro?

Jumma'a 13th Yuli 2018 za a yi alama da wani taron. Wani bangare na kusufin rana. Kwanan wata da taron ga mutane da yawa kamar wani abu ne na allahntaka. Akalla a shafukan sada zumunta, ranar 13 ga watan Yuli ake tafka muhawara mai zafi. Babu maganar ƙarshen duniya, kuma ba wanda ke jiran mai shelar alƙawarin. Abin da ke farantawa. Duk da haka, astrologers, ƙoƙarin taimaka wa mazaunan duniya, sun ba da shawarar, a wannan rana, don kauce wa dogon tafiya da kuma ciyar da lokaci don amfanin kansu da iyalansu. Husufin Rana: Juma'a 13 ga shi kuma shi kansa kusufi ba kowa ne zai ga taron ba. Za a iya lura da yadda wata ta mamaye Rana a kudancin gabar tekun Ostireliya, daga tsibirin Tasmania da kuma wani yanki na Antarctica. Mafi kyawun batu don ... Kara karantawa

Yadda ake ɗaure taye ba tare da cutar da lafiya ba - AMP

Sama da karni guda, da'a ya bukaci 'yan kasuwa su sanya taye. Duk da haka, a farkon karni na 21, masana kimiyya sun gano cewa kayan aiki suna da illa ga mutane. Sanya taye yana da haɗari ga lafiya - Masu binciken Jamus sun yi imani kuma suna yin muhawara. Saboda haka, ba abin mamaki ba ne cewa a cikin kafofin watsa labaru maza suna iya yin tambaya: "Yadda za a ɗaure taye ba tare da cutar da lafiyar jiki ba." Saka taye yana shafar isar da jini zuwa kwakwalwa. Ba shi da wahala a yi tsammani cewa ɗaure a wuya yana matsawa jijiyoyin jugular da jijiyoyin carotid. A nan, ko da ba tare da masana kimiyya ba, mutane sun lura cewa kawar da kayan aikin kasuwanci ya haifar da kwantar da hankali da jin dadi na jiki. Kuma gwaje-gwajen da masana kimiyya na Jamus suka yi sun tabbatar da cewa kunnen doki yana da illa. Yadda ake daurin kunnen doki ba tare da... Kara karantawa

kadaici yana kaiwa ga mutuwa - masana kimiyya

Masana kimiyyar Amurka ba su daina ba jama'a mamaki da nasu binciken. Wakilan Jami'ar Minnesota sun yi imanin cewa kaɗaici yana haifar da mutuwa. A cewar masana kimiyya, keɓewar zamantakewa yana haifar da "sawa da tsagewa" na kwakwalwa. Haɗarin mutuwa yana ƙaruwa da 70%. Wani ƙarshe ba tare da mutanen gwaji ba? Kadaicin da ke kai ga mutuwa Masu bincike na Turai ne suka kai wa Amurkawa hari waɗanda suka mallaki tushe mai tushe cewa galibin masu dogon hanta a duniyar nan kaɗai ne. A Yammacin Turai, tsofaffi masu kaɗaici suna nuna siffar jiki da tunaninsu. Nuna fifiko ga wasu. Tun daga ƙarshen karni na 20, an tabbatar da cewa rashin damuwa da rayuwa don jin daɗin kansa yana jinkirta lokacin mutuwa. Ilimin halin dan Adam ba makawa a cikin lamarin. Wataƙila kadaici ya kai ga mutuwa, a gaban raunin hankali. ... Kara karantawa

Supercomputer ita ce kwamfuta mafi ƙarfi a duniya

Kasar Amurka, a karon farko cikin shekaru 12, ta yi nasarar shiga matsayi na daya a jerin manyan kwamfutoci. Kuma wannan ya sabawa yanayin raguwar adadin kwamfutoci masu ƙarfi da ke cikin Amurka, daidai da yanayin TOP-500 na duniya. Supercomputer alama ce ta dubban kwamfutoci masu ƙarfi tare da ɗimbin muryoyi a kowace na'ura. An sanar da gasar zakarun Amurka a wannan matsayi a ranar 25 ga Yuni, 2018, a Frankfurt (Jamus). Taron dandali na Amurka (Top), tare da wasan kwaikwayo na petaflops 200 a cikin daƙiƙa, ya ɗauki matsayi na farko. Supercomputer ya ƙunshi nodes 4400, kowannensu yana dogara ne akan kwakwalwan zane-zane na NVIDIA Tesla V100 guda shida da na'urori masu sarrafawa guda biyu 22-core Power9. Supercomputer ita ce kwamfuta mafi ƙarfi a duniya Haka kuma, a cikin ... Kara karantawa

An Bayyana Cutar Alzheimer: Sanadin

Masana kimiyya ba su fahimci cutar Alzheimer ba, amma akwai haske a ƙarshen rami don duniyar kimiyya. Nazarin ya tabbatar da cewa likitocin suna da damar yin rigakafi ko tsinkayar cutar da ta zama ruwan dare a tsakanin tsofaffi. Ƙara yawan ƙwayar cutar ta herpes HHV-6A da HHV-7, a cewar masana kimiyya, shine tushen farkon cutar Alzheimer. An buga shi a mujallar Neuron, sakamakon binciken nan da nan wasu masana suka yi suka. A cikin kafofin yada labarai, an zargi masu kirkiro da sakamakon da ba su da tabbas. A cikin rukuni na mutane 1000 da aka gano tare da Alzheimer's, kawai 30% na marasa lafiya sun sami babban taro na ƙwayoyin cuta na herpes HHV-6A da HHV-7. Cutar Alzheimer Haɗin kai tare da ilimin ƙwayoyin cuta ba su wadatar a cikin samfurin 30% ba. Don... Kara karantawa

Abin cutarwa mai cutarwa

Abincin takarce yana shafar cibiyar lada na kwakwalwar ɗan adam. Don haka masana kimiyya sun bayyana sha'awar mutane zuwa abinci mara kyau. A Jami’ar Yale, sun gudanar da wani bincike, inda suka gano cewa, da zarar sun dandana abincin da ba su da kyau, sai jijiyoyi na kwakwalwar dan Adam su sake jin dadi, ganin hoton kawai. A yayin gwajin, an nuna wa mahalartan samfuran da aka gama da su da kowane nau'in abun ciye-ciye tare da babban abun ciki na sukari, carbohydrates da mai. Kowane hoto ya haifar da sabon fashewar ƙwayoyin cuta a cikin kwakwalwar batutuwa. Yana da mahimmanci cewa abinci mai kyau wanda ke tallafawa ci gaban jiki baya haifar da motsin rai na musamman a cikin mahalarta gwajin. Abincin da ba shi da lafiya wanda ke haifar da jaraba Ana sanya soyayya ga abinci mara kyau ga mabukaci ta hanyar talla. Masana kimiyya sun gano cewa abinci mara kyau a talabijin yana da alaƙa da inganci ... Kara karantawa

Chernobyl Bangaren warewa: Maido da Fauna

A cikin kamfanin dawakai na Przewalski, waɗanda aka yi rikodin kullun ta tarkon kyamara a cikin yankin keɓe, masanan halittu sun lura da dokin gida tare da baƙar fata. Irin wannan aure mutane ba su gane ba, amma yanayi yana da nata dokokin. Bugu da ƙari, bayyanar doki na gida a kan ƙasa da aka gurbata da radiation yana nuna maido da yanayin yanayin Chernobyl da yankunan da ke kusa. Chernobyl. Yankin keɓe: Maido da dabbobi A farkon 2018, masana kimiyya sun yi nasarar rikodin dawakai 48 na Przewalski. Yana yiwuwa adadin namun daji ya fi girma sau 2-3. A cewar shugaban Chernobyl Reserve, Denis Vishnevsky, dawakai suna da lafiya, ba tare da alamun cututtuka na rediyo ba. Ganin cewa dawakan Przewalski sun bace daga mazauninsu na halitta, babu wani asiri a cikin bayyanar dabbobi ... Kara karantawa

Mulkin Wata - Matakan Farko na Amazon

tauraron dan adam na Duniya - Moon, ya sake zama mai sha'awar ikon duniya. An fara sanar da ci gaban tauraron dan adam zuwa Roskosmos. Bayan haka, an bayyana da'awar wata a NASA. Kuma a yanzu, shugaban kamfanin Amazon, Jeff Bezos, ya bayyana sha'awar mamaye tauraron dan adam na duniya. Dan kasuwan yana shirin samar da zaman lafiya a saman duniyar wata. Shirin dabara na Amazon shine cewa an shirya mulkin mallaka na wata ba tare da tallafin gwamnati ba. Nan take dan kasuwar ya cire tallafin NASA daga aikin kuma ya sanar da tsarin kasuwanci don magance matsalar. Bezos na shirin zama mamallakin wata. Abin lura shi ne cewa dan kasuwa ya riga ya matsa zuwa ga burin da aka yi niyya. Bezos na kashe dalar Amurka biliyan daya a duk shekara kan aikin samar da tauraron dan adam a duniya. Mulki... Kara karantawa

Me yasa tsuntsaye ba su da hakora - sigar masana kimiyya

Masana kimiyya a wata jami'ar Jamus sun bankado sirrin dalilin da yasa tsuntsaye ba su da hakora. Bisa ga kakkarfan tunanin dan Adam, matsalar tana cikin juyin halitta. Duk dinosaur masu tashi da suka zauna a cikin tsaunuka sun rasa hakora. Sun yi ƙoƙarin samun abinci a kan tashi ko kama kwari tsakanin duwatsun. Masana kimiyya sun yi iƙirarin cewa kin amincewa da juyin halitta na hakora ya ba tsuntsaye dama. Wato, ta hanyar rage lokacin shiryawa lokacin da ake ƙyanƙyashe zuriya. A cewar masana, yanayi yana ɗaukar tsawon lokaci don gina hakora. Kuma lokaci ga tsuntsaye shine hanya mai mahimmanci. Bayan haka, dabbobi da dama, tsuntsaye da dabbobi masu rarrafe suna mafarkin cin 'ya'yan da ba a haifa ba. Me ya sa Tsuntsaye ba su da haƙori An soki kalaman masana kimiyar Jamus. Masana sun tabbatar da cewa don yanke shawara, ... Kara karantawa

Sahihiyar Sirrin Abubuwan Tazo A Kan: Robots

Bayan wani bidiyo game da wani mutum-mutumi na mutum-mutumi na Atlas robot ya bayyana a shafukan sada zumunta, jama'a sun kasu kashi biyu. Rabin al'ummar duniya sun yi ƙoƙari su yi tunanin masu yin ƙarfe suna yin aiki tuƙuru da kuma kare masu su. A daya bangaren kuma, mutane sun tsorata. Hankali na wucin gadi yana zuwa - mutum-mutumi na iya maye gurbin mutum gaba daya, yana barin miliyoyin iyalai ba tare da aiki ba. 'Yan jarida sun kara mai a cikin wuta, wanda ya tuna da fasahar da aka tsara daga fim din "Ni Robot", wanda zai taimaka wajen sarrafa masu shi. Hankalin Artificial Yana Zuwa: Robotics Robotics fasaha ce mai saurin haɓakawa wacce ta yi daidai da microelectronics don kasuwancin nishaɗi. 'Yancin kai na fasaha da yin dabaru suna faranta wa mai kallo rai, wanda ya saba da sabbin abubuwa ta hanyar ... Kara karantawa

Labaran Soyayya na Zamani

Sa'a guda a shafukan sada zumunta na lalata yarda da kai - wannan shine yadda masanin ilimin halayyar dan adam dan Burtaniya ya fara rahotonsa, yana magana a daya daga cikin taron da ake gudanarwa kowace shekara a Ingila. Dogaro da cibiyoyin sadarwar jama'a, tare da ƙa'idodin kyau, yana hana yawan mace da namiji na duniya. Sabbin Ka'idojin Kyau Rage Amincewar Mata Kai ya daina zama na farko a cikin maza waɗanda suka fi son shafukan sada zumunta da sadarwa ta yau da kullun tare da kishiyar jinsi. Maza suna tsoron haduwa da ’yan mata a kan titi su fara hira. Madadin haka, ana ciyar da sa'o'i don neman abokin aure a shafukan sada zumunta, sanya abubuwan sha'awa, kyalkyali da gajerun jimlolin sha'awa. Masana kimiyya a Ingila sun yi imanin cewa bayan shekaru biyu, wahalar saduwa ... Kara karantawa

Barasa yana haifar da haɗarin kansa - masana kimiyyar Amurka

Har yanzu, duniyar kimiyya ta Amurka ta fara nazarin barasa. Maimakon haka, ga sakamakon, bayan shan abubuwan sha masu ɗauke da barasa. Amurkawa sun yi iƙirarin cewa barasa na ƙara haɗarin cutar kansa. Bugu da ƙari, cutar ba ta faruwa a matakin kwayoyin halitta. Kuma ba saboda hanawa a cikin aikin hanta ba. Masana kimiyya sunyi iƙirarin cewa canje-canje suna farawa a cikin microflora na cavity na baka. Maƙogwaro, esophagus da ciki suna cikin haɗari ga masoya barasa. Abin lura ne cewa tsofaffi daga 55 zuwa 90 shekaru sun shiga cikin gwaje-gwajen. An raba batutuwa zuwa rukuni. 25% na mahalarta sun dauki barasa a karon farko. 60% na mutane sun sha a tsaka-tsaki, kuma 15% sun kasance masu shaye-shaye. Barasa yana ƙara haɗarin kamuwa da cutar kansa Bayan shan barasa, masana kimiyya sun ɗauki wani smear daga ... Kara karantawa

Yadda ake inganta aikin kwakwalwa ta hanyar dawo da hanta

Tambayar karni na masana kimiyya "yadda za a inganta aikin kwakwalwa" ya sami amsar da ba zato ba tsammani. Ta hanyar gudanar da ɗaruruwan gwaje-gwaje akan marasa lafiya, masu binciken Amurka sun kafa alaƙa tsakanin kwakwalwa da hanta. Duk da haka, barasa mai lalata hanta yana da mummunan tasiri a kan hankali. Najasa na mai lafiya zai kawar da damuwa a cikin aikin kwakwalwa a cikin majiyyaci kuma wannan ba abin wasa ba ne. Hanta cirrhosis da hanta encephalopathy suna bayyana lokacin da microflora na hanji ya lalace. Saboda haka, masana kimiyya kawai sabunta jiki daga ciki. Bayan haka, gaskiyar magana ita ce, hanji ne ke shanye abubuwan gina jiki ba ciki ba. Yadda za a inganta aikin kwakwalwa Amurkawa sun yi iƙirarin cewa kashi 50 cikin XNUMX na marasa lafiya da ke shiga gwajin suna nuna haɓakar aikin ƙwaƙwalwa. Ba a san makomar rabin na biyu na marasa lafiyar da aka yi nazari ba. Don haka tambayoyin... Kara karantawa