Terima Kasih, Anda Pengunjung ke

Senin, 30 November 2015

Einstein's Brain

The Tragic Story of How Einstein’s Brain Was Stolen and Wasn’t Even Special 

My headline may be a bit misleading. Albert Einstein, the Nobel prize-winning physicist who gave the world the theory of relativity, E = mc2, and the law of the photoelectric effect, obviously had a special brain. So special that when he died in Princeton Hospital, on April 18, 1955, the pathologist on call, Thomas Harvey, stole it.
Einstein didn’t want his brain or body to be studied; he didn’t want to be worshipped. “He had left behind specific instructions regarding his remains: cremate them, and scatter the ashes secretly in order to discourage idolaters,” writes Brian Burrell in his 2005 book, Postcards from the Brain Museum.
But Harvey took the brain anyway, without permission from Einstein or his family. “When the fact came to light a few days later, Harvey managed to solicit a reluctant and retroactive blessing from Einstein’s son, Hans Albert, with the now-familiar stipulation that any investigation would be conducted solely in the interest of science,” Burrell writes.
Harvey soon lost his job at the Princeton hospital and took the brain to Philadelphia, where it was carved into 240 pieces and preserved in celloidin, a hard and rubbery form of cellulose. He divvied up the pieces into two jars and stored them in his basement.
Just when you think this story can’t get any weirder, it does. As Burrell explains (emphasis mine):
After [Harvey’s] wife threatened to dispose of the brain, he returned to retrieve it and took it with him to the Midwest. For a time he worked as a medical supervisor in a biological testing lab in Wichita, Kansas, keeping the brain in a cider box stashed under a beer cooler. He moved again, to Weston, Missouri, and practiced medicine while trying to study the brain in his spare time, only to lose his medical license in 1988 after failing a three-day competency exam. He then relocated to Lawrence, Kansas, took an assembly-line job in a plastic-extrusion factory, moved into a second-floor apartment next to a gas station, and befriended a neighbor, the beat poet William Burroughs. The two men routinely met for drinks on Burroughs’s front porch. Harvey would tell stories about the brain, about cutting off chunks to send to researchers around the world. Burroughs, in turn, would boast to visitors that he could have a piece of Einstein any time he wanted.
(I know, right?!)
To fast forward a bit: Come 1985, Harvey and collaborators in California published the first study of Einstein’s brain, claiming that it had an abnormal proportion of two types of cells, neurons and glia. That study was followed by five others (the most recent published just this month), reporting additional differences in individual cells or in particular structures in Einstein’s brain. The researchers behind these studies say studying Einstein’s brain could help uncover the neurological underpinnings of intelligence.
But that premise is nonsense and the studies are bunk, at least according to Terence Hines, a professor of psychology at Pace University.
A couple of weeks ago, Hines presented a poster at the Cognitive Neuroscience Society annual meeting outlining all of the ways in which each of the six studies is flawed. Some highlights:
–In the original 1985 report, Harvey and his collaborators found that in Brodmann Area 39 — a region where the temporal, parietal, and occipital lobes meet — Einstein’s neuron-to-glia ratio was significantly smaller than it was in the same area in 11 control brains. But the control group was not all that well controlled: the brains came from people age 47 to 80 years old, whereas Einstein died at age 76. The controls brains were also fresh, whereas Einstein’s had been languishing in basements and beer coolers for three decades. Perhaps most problematic, counting cells is a subjective business, and the researchers performing the cell counts were not blind to which tissue was Einstein’s and which was not.
–In 1996, Harvey partnered with a scientist from Alabama and counted neurons in Einstein’s Brodmann Area 9 — part of the frontal cortex — as well as those of five controls. There were no differences in the number of neurons or the size of neurons, the study found, but Einstein’s tissue was thinner than controls. More densely packed neurons, the authors speculated, means that cell-to-cell messages travel shorter differences, which might mean faster processing speed overall. That’s quite a stretch. As Hines calls out in his poster, the finding was based on just one square millimeter of Einstein’s brain. What’s more, the authors admit to not reporting any of the ways in which Einstein’s brain was similar to controls.
–In 1999, Harvey and Canadian collaborators got Einstein’s brain into one of the world’s most prestigious medical journals, The Lancet. Based on old photographs that had been taken of Einstein’s brain before it was cut up, the researchers claimed that Einstein had an abnormal folding pattern in part of his parietal lobe, a region that has been linked to mathematical ability. They also reported that his parietal lobes were 15 percent wider, and more symmetrical, than those of control brains. Once again, though, the researchers were not blinded to which photographs showed Einstein’s brain. And though the authors were quick to make links between these supposed differences and Einstein’s mathematical prowess, Hines points out that Einstein wasn’t, in fact, a great mathematician.
The underlying problem in all of the studies is that they set out to compare a category made up of one person, an N of 1, with a nebulous category of “not this person” and an N of more than 1. With an N of 1, it’s extremely difficult to calculate the statistical variance — the likelihood that, for example, Einstein’s low neuron-to-glia ratio is real and not just a fluke of that particular region and those particular methods. Even if the statistics were sound, you’d still have the problem of attributing skills and behaviors to anatomy. There’s no way to know if X thing in Einstein’s brain made Einstein smart/dyslexic/good at math/you name it, or was just an X thing in his brain.
It makes me angry to think of all that was wasted in these investigations. There was the monetary cost of the studies — money that could have been spent on work that was not doomed from the outset to fail. There was a personal cost, in that Einstein’s family was essentially strong-armed into agreeing to participate in research that Einstein explicitly did not want to participate in. And there was a public cost, too. In popular-press accounts of these studies over the years, the public was misled about the findings and their supposed scientific value.
I’ve made this error, too, by the way. In 2012 I wrote an uncritical, cringe-worthy report on preliminary data from a neuroscience conference comparing brain images of Temple Grandin, one of the most famous people with autism, with those of three controls. The researchers claimed to find several distinctive features in Grandin’s brain that could explain her exceptional nonverbal intelligence and her way of thinking in pictures.
Here’s how smart Einstein was — he understood all too well the public’s obsession with him, our obsession with celebrity and special-ness. He knew that if given the chance, scientists would pore over his brain’s neurons and glia, sulci and gyri, and make grand pronouncements about what makes a genius. And he knew it would be bullshit.
As Einstein supposedly wrote, but probably didn’t really write, on a blackboard in his Princeton office: “Not everything that counts can be counted, and not everything that can be counted counts.”

Senin, 23 November 2015

DUNIA SEKRETARIS



PERAN SEKRETARIS 

Dalam kegiatan sehari-hari seorang sekretaris dituntut untuk dapat membantu atasan secara maksimal, sehingga terkadang sekretaris tidak mempunyai jam kerja yang tetap karena semua tergantung pada pekerjaan atasan,  Guna menunjang kegiatan atasan tersebut seorang sekretaris harus mempunyai peran dan tanggung jawab yang tepat, oleh karena itu secara global peran dan tanggung jawab sekretaris adalah :
Sekretaris dituntut untuk dapat Multitasking
A.    Peran
Peran sekretaris adalah membantu kelancaran kegiatan pimpinan terutama pada kegiatan administrasi, hal ini cukup sederhana dalam kalimat, tetapi dalam prakteknya cukup berat karena apapun pekerjan atasn yang berhubungan dengan kegiatan mencapai tujuan perusahaan seorang sekretaris harus membantunya, seperti :
a.       Bila atasan akan melalukan hubungan bisnis melalui surat , maka sekretaris yang menyiapakn mulai dari pengetikan sampai pada pengiriman dan tindak lanjutnya
b.      BIla pimpinan akan mengadakan rapat, maka semua persiapan, saat pelaksanaan rapat sampai setelah rapatpun sekretaris yang melakukannya kelancaran rapat tersebut.
c.       Demikian juga apbila atasan akan melakukan perjalanan ke luar daerah, maka semua persiapan sebelum berangkat, saat berangkat sampai setelah atasan kembali sekretaris yang memperlancar kegiatan atasan tersebut.
B.     Tanggung Jawab
Dalam bekerja maka seorang sekretaris, mempunyai tanggung jawab yang cukup besar yaitu meningkatkan dan mempertahankan citra atasan,  dalam hal ini sekretaris dituntut untuk selalu menjaga nama baik atasan dalam hal apapun baik dalam lingkungan perusahaan maupun di luar lingkungan  perusahaan.   Mempertahankan citra atasan terkadang juga harus melakukan tindakan atau perkataan yang berbeda dengan fakta yang ada, seperti pabila atasan dating terlambat  maka sekretaris harus dapat berargumen bahwa atasan terlambat karena adanya pekerjaan yang di lakukan diluar kantor.  Demikian juga untuk hal lainnya.  Hal ini dilakukan agar citra atasan tetap baik.
Guna meningkatan peran dan tanggung jawab ini, seorang sekretaris harus mempunyai fungsi dalam kantor seperti :
a. Meningkatkan fungsi kantor, yaitu meningkatkan kantor sebagai tempat yang digunakan untuk melakukan pemikiran tentang jalannya usaha, atau sebagai pusat informasi atau sebagai pusat pelayanan masyarakat dan juga sumber data.
     
b.  Memperlancar kegiatan ketatausahaan seperti mengetik, kearsipan, Komputer, dan penggandaan dokumen yang dibutuhkan oleh suatu perusahaan.
           
c. Mempererat hubungan antara bawahan dengan atasan dalam hal komunikasi, karena itu sekretaris dapat dikatakan sebagai media penghubung dan juga penghubung antara dunia luar dan perusahaan dengan perusahaan itu sendiri.  
d. Sebagai media perekam, penyimpan, pengingat kegiatan atasan dalam bentuk penyusunan jadwal kerja harian.
Untuk memenuhi peran dan tanggung jawab tersebut yang sedemikian besar maka syarat yang diwajibkan untuk menduduki jabatan ini adalah :
A.    Keterampilan dasar
  1. Kemampuan mengetik 10 jari
Kemampuan ini berguna untuk mengerjakan berbagai pekerjaan kantor baik dengan mesin tik, atau computer, kemampuan minimal adalah kecepatan 200 entakan per menit, dengan kesalahan maksimal 3 entakan.
  1. Penanganan Kearsipan
Kemampuan mengelola berkas sampai pada penyimpanan serta penggunaan system dengan benar. Agar penemuan kembali dapat dilakukan dengan cepat dan tepat. Dengan standar waktu penemuan kembali maksimal 3 menit
  1. Komputer
Dapat mengoperasikan perangkat komputer untuk berbagai keperluan dan sistem yang tepat seperti Ms. Word, Ms. Excell serta PowerPoint.  Juga dapat menjalankan internet untuk berbagai keperluan baik mengirim dan menerima berita atau mencari data.
  1. Korespondensi
Suatu kemampuan membuat surat baik dalam bahasa Indonesia maupun bahasa Inggris, dengan berbagai bentuk atau variasi yang diinginkan atasan, baik dengan konsep atasan maupun mengkonsep sendiri.
  1. Menerima dikte
Kemampuan dalam menerima instruksi atau berita, baik dengan cara ditulis tangan atau kemampuan komputer.
  1. Pengetahuan Bank dan kas kecil
Suatu kemampuan yang memperlancar pekerjaan dalam hubungannya dengan keuangan atasan.
B.     Keterampilan khusus
  1. Tata Krama Lingkungan Kerja
Mengetahui bagaimana menjalankan kaidah-kaidah atau aturan dan sopan santun dalam bentuk perilaku di lingkungan kerja.
  1. Tata Krama Bertelepon
Dapat menggunakan telepon dengan berbagai fungsi untuk melakukan tugas serta dapat menanganinya dengan standar kepuasan pelanggan
  1. Komunikasi Efektif
Dapat menyampaikan pikiran dan maksud dengan jelas secara lisan maupun tulisan, serta dapat menyampaikan pendapat atau pesan di muka umum.
  1. Hubungan Antarpribadi
Suatu cara untuk menyesuaikan diri dalam pergaulan, mempunyai cara-cara pendekatan baik kepada atasan maupun relasi.
C.  Penampilan
Adalah hal penunjang untuk menjadi pegawai yang profesional.  Penampilan ini sangat penting karena citra seseorang  dapat dilihat dari penampilannya.  Penampilan ini mencakup tata cara berpakaian, tata cara menggunakan tata rias, tata cara menggunakan asesoris di samping juga cara berjalan, cara berdiri dan cara duduk juga merupakan hal yang penting dalam penampilan.

A children, a sister and a student at D3 Secretari SWCU 13'